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3420 NW Orchard AveCorvallis, OR 97330(541) 738-4051

Our nematology research program focuses on the development of management strategies for plant-parasitic nematodes affecting high value horticultural crops. The overall goal is to identify sustainable nematode management practices and then to deploy these management practice targeting the biology of the nematode.

Current projects include the evaluation of grape rootstocks for root-knot nematode management, integrated management of root lesion nematode in raspberry, and genomic insights into plant-parasitic nematodes including the nematode microbiome.

For more information on activities in our laboratory visit https://zasadalab-usda-ars-hcru.weebly.com/.

- Projects Disease Management in Small Fruit and Nursery Crops Based on Knowledge of Pathogen Diversity, Biology, and Environmental EffectsIn-House Appropriated (D) Accession Number:441106Trials of Advanced Raspberry Selections to Evaluate Suitability for IQF Processing and to Promote AdoptionGrant (G) Accession Number:438632Genomic Prediction for Quantitative Resistance to Root Lesion Nematode in RaspberryGrant (G) Accession Number:441012Distribution and Abundance of Plant-Parasitic Nematodes in Oregon VineyardsGrant (G) Accession Number:444858Pulse Electricity: A Non-Chemical Approach for the Management of Nematodes, Pathogens, and Weeds in NurseriesReimbursable Cooperative Agreement (R) Accession Number:443613Systems Approach to Controlling Nematodes in US Potato ProductionReimbursable Cooperative Agreement (R) Accession Number:443774Crop Rotation and Development of Resistance for Control of Globodera pallidaReimbursable Cooperative Agreement (R) Accession Number:439603Evaluation of the Hop Cyst Nematode, Heterodera Humuli, an Emerging Pathogen of United States Hop (Humulus Lupulus) ProductionReimbursable Cooperative Agreement (R) Accession Number:442459Screening for Viruses Pathogenic to Potato Cyst NematodeNon-Assistance Cooperative Agreement (S) Accession Number:442474Genomic Prediction for Quantitative Resistance to Root Lesion Nematode in RaspberryNon-Assistance Cooperative Agreement (S) Accession Number:442645Potato Cyst Nematode (Globodera spp.) Genetic DiversityNon-Assistance Cooperative Agreement (S) Accession Number:443209Natural Nematicidal Compounds from Litchi TomatoNon-Assistance Cooperative Agreement (S) Accession Number:437988Natural Nematicidal Products from Litchi TomatoNon-Assistance Cooperative Agreement (S) Accession Number:445081
- Publications - (Clicking on the reprint icon  will take you to the publication reprint.)  
- First report of Meloidogyne hapla on hemp (Cannabis sativa) in Oregon  -(Peer Reviewed Journal)   Nunez-Rodriguez, L., Rivedal, H.M., Peetz, A.B., Ocamb, C.M., Zasada, I.A. 2024. First report of Meloidogyne hapla on hemp (Cannabis sativa) in Oregon. Journal of Nematology. 56(1). https://doi.org/10.2478/jofnem-2024-0008.   
- Vineyard soil texture and pH effects on Meloidogyne hapla andMesocriconema xenoplax  -(Peer Reviewed Journal)   East, K.E., Zasada, I.A., Lee, J., Schreiner, R.P., Rippner, D.A. 2023. Vineyard soil texture and pH effects on Meloidogyne hapla and Mesocriconema xenoplax. Agrosystems, Geosciences & Environment. 6:e20450. https://doi.org/10.1002/agg2.20450.   
- A canister assay for evaluating host status of potato to Meloidogyne chitwoodi  -(Peer Reviewed Journal)   Soule, M.L., Kitner, M.L., Studebaker, G.W., Feldman, M.J., Sathuvalli, V., Zasada, I.A. 2023. A canister assay for evaluating host status of potato to Meloidogyne chitwoodi. American Journal of Potato Research. https://doi.org/10.1007/s12230-023-09936-0.   
- Unraveling microbial endosymbiosis eynamics inplant-parasitic nematodes with a genome skimming strategy  -(Peer Reviewed Journal)   Wasala, S., Hesse, C.N., Wram, C.L., Howe, D.K., Zasada, I.A., Denver, D.R. 2023. Unraveling microbial endosymbiosis eynamics in plant-parasitic nematodes with a genome skimming strategy. Journal of Applied Microbiology. 3:1229-1249. https://doi.org/10.3390/applmicrobiol3040085.   
- Occurence and distribution of Globodera SPP. in Bolivia -(Peer Reviewed Journal)   Sainz, C., Villarroe, C.L., Zasada, I.A., Dandurand, L.M., Kuhl, J., Silvestre, R., Hesse, C.N., Peetz, A.B., Benedetti, T., Baker, H.V., Subbotin, S.A. 2023. Occurence and distribution of Globodera SPP. in Bolivia. Nematropica. 53:82-88.   
- Seed gall nematodes in grasses grown for seed: Survey and identification methods  -(Abstract Only)   Rivedal, H.M., Zasada, I.A. 2023. Seed gall nematodes in grasses grown for seed: Survey and identification methods. Grow:  Plant Health Exchange. https://doi.org/10.1094/GROW-REG-07-23-001.   
- Reproduction and invasion dynamics of Globodera pallida and Meloidogyne spp. in Solanum Sisymbriifolium -(Peer Reviewed Journal)   Baker, H.V., Zasada, I.A., Gleason, C., Dandurand, L. 2023. Reproduction and invasion dynamics of Globodera pallida and Meloidogyne spp. in Solanum Sisymbriifolium. Nematropica. 53:70-81.   
- Managing arbuscular mycorrhizal fungi in arid Columbia Basin vineyards of the Pacific Northwest United States  -(Peer Reviewed Journal)   Schreiner, R.P., Moyer, M.M., East, K.E., Zasada, I.A. 2023. Managing arbuscular mycorrhizal fungi in arid Columbia Basin vineyards of the Pacific Northwest United States. American Journal of Enology and Viticulture. 74(1). Article 074002. https://doi.org/10.5344/ajev.2023.23005.   
- Nemataxa: a new taxonomic database for analysis of nematode community data  -(Peer Reviewed Journal)   Baker, H., Ibarra Caballero, J., Gleason, C., Jahn, C., Hesse, C.N., Stewart, J., Zasada, I.A. 2023. Nemataxa: a new taxonomic database for analysis of nematode community data. Phytobiomes Journal. 7:385-391. https://doi.org/10.1094/PBIOMES-07-22-0042-R.   
- First report of the root-lesion nematode, Pratylenchus penetrans, parasitizing hemp (Cannabis sativa) in Washington  -(Peer Reviewed Journal)   Zasada, I.A., Nunez-Rodriguez, L., Rivedal, H.M., Peetz, A.B., Ocamb, C. 2023. First report of the root-lesion nematode, Pratylenchus penetrans, parasitizing hemp (Cannabis sativa) in Washington. Plant Health Progress. https://doi.org/10.1094/PHP-12-22-0122-BR.   
- Egg-laying and locomotory screens with C. elegans yield a nematode-selective small molecule stimulator of neurotransmitter release  -(Peer Reviewed Journal)   Harrington, S., Knox, J., Burns, A., Choo, K., Au, A., Kitner, M.L., Haeberli, C., Pyche, J., D'Amata, C., Kim, Y., Volpatti, J., Guiliani, M., Snider, J., Wong, V., Palmeira, B., Redman, E., Vaidya, A., Gilleard, J., Stagljar, I., Cutler, S., Kulke, D., Dowling, J., Yip, C., Keiser, J., Zasada, I.A., Lautens, M., Roy, P. 2022. Egg-laying and locomotory screens with C. elegans yield a nematode-selective small molecule stimulator of neurotransmitter release. Communications Biology. 5. Article 865. https://doi.org/10.1038/s42003-022-03819-6.   
- Transcriptional response of meloidogyne incognita to non-fumigant nematicides  -(Peer Reviewed Journal)   Wram, C.L., Hesse, C.N., Zasada, I.A. 2022. Transcriptional response of meloidogyne incognita to non-fumigant nematicides. Molecular Plant-Microbe Interactions. 12:9814. https://doi.org/10.1038/s41598-022-13815-9.   
- Impacts of non-fumigant nematicides on transcription in meloidogyne incognita biochemical pathways  -(Peer Reviewed Journal)   Wram, C.L., Hesse, C.N., Zasada, I.A. 2022. Impacts of non-fumigant nematicides on transcription in meloidogyne incognita biochemical pathways. Scientific Reports. 12:9875. https://doi.org/10.1038/s41598-022-14091-3.   
- What is the optimal way to assess Meloidogyne spp. reproduction in greenhouse pot experiments?  -(Peer Reviewed Journal)   Anderson, O.P., Wram, C.L., Zasada, I.A. 2022. What is the optimal way to assess Meloidogyne spp. reproduction in greenhouse pot experiments? Journal of Nematology. 54(1). Article 3922. https://doi.org/10.2478/jofnem-2022-0012.   
- Genome announcement: the draft genome of the carrot cyst nematode heterodera carotae  -(Peer Reviewed Journal)   Wram, C.L., Hesse, C.N., Handoo, Z.A., Pacheco, H., Zasada, I.A. 2022. Genome announcement: the draft genome of the carrot cyst nematode heterodera carotae. Journal of Nematology. 22:113-121. https://doi.org/10.2478/jofnem-2022-0014.   
- Targeted transcriptomics reveals signatures of large-scale independent origins and concerted regulation of effector genes in Radopholus similis  -(Peer Reviewed Journal)   Viera, P., Myers, R.Y., Pellegrin, C., Wram, C., Hesse, C.N., Maier, T.R., Georgios, K.D., Zasada, I.A., Matsumoto Brower, T.K., Danchin, E.G., Baum, T.J., Eves-Van Den Akker, S., Nemchinov, L.G. 2021. Targeted transcriptomics reveals signatures of large-scale independent origins and concerted regulation of effector genes in Radopholus similis. PLoS Pathogens. 17:11. https://doi.org/10.1371/journal.ppat.1010036.   
- TGenomic characterization of globodera ellingtonae populations from Chile  -(Peer Reviewed Journal)   Hesse, C.N., Moreno, I., Acevedo Pardo, O., Pacheco Fuentes, H., Greiner, E., Dandurand, L., Zasada, I.A. 2021. TGenomic characterization of globodera ellingtonae populations from Chile. Journal of Nematology. 53:1-9. https://doi.org/10.21307/jofnem-2021-088.   
- Irrigation and rootstocks to manage northern root-knot nematode during wine grape vineyard establishment  -(Peer Reviewed Journal)   East, K.E., Zasada, I.A., Schreiner, R.P., Moyer, M.M. 2021. Irrigation and rootstocks to manage northern root-knot nematode during wine grape vineyard establishment. Plant Health Progress. 23(1):49-56. https://doi.org/10.1094/PHP-06-21-0097-RS.   
- Genomic analyses of globodera pallida, a quarantine agricultural pathogen in Idaho  -(Peer Reviewed Journal)   Wasala, S.K., Howe, D.K., Dandurand, L.M., Zasada, I.A., Denver, D.R. 2021. Genomic analyses of globodera pallida, a quarantine agricultural pathogen in Idaho. Pathogens. 10(3):363. https://doi.org/10.3390/pathogens10030363.   
- Soil and climatic factors that affect communities of plant-parasitic nematodes in organic vegetables in the Argan Biosphere of Souss-Massa region (Southern Morocco)  -(Peer Reviewed Journal)   Filali Alaoui, I., Ait Hamza, M., Benjlil, H., Idhmida, A., Mzough, E., Furze, J., Hallouti, A., Basaid, K., Zasada, I.A., Paulitz, T.C., Ferji, Z., El Mousadik, A., Mayad, E. 2021. Soil and climatic factors that affect communities of plant-parasitic nematodes in organic vegetables in the Argan Biosphere of Souss-Massa region (Southern Morocco). Environmental Science and Pollution Research. https://doi.org/10.1007/s11356-021-12986-8.   
- First report of the hop cyst nematode, heterodera humuli, in two counties of the Yakima Valley region, WA, USA  -(Peer Reviewed Journal)   Darling, E., Pu, J., Cole, E., Perrault, J., Christian, R., Hale, A., Warner, F., Zasada, I.A., Chung, H., Quintanilla, M. 2021. First report of the hop cyst nematode, heterodera humuli, in two counties of the Yakima Valley region, WA, USA. Plant Disease. 105(4):727-738. https://doi.org/10.1094/PDIS-08-20-1769-PDN.   
- Shifting prevalence of plant- parasitic nematodes in orchards and vineyards of the Okanagan Valley, British Columbia  -(Peer Reviewed Journal)   Forge, T.A., Munro, P., Midwood, A., Phillips, L., Hannam, K., Nielsen, D., Zasada, I.A. 2021. Shifting prevalence of plant- parasitic nematodes in orchards and vineyards of the Okanagan Valley, British Columbia. Plant Health Progress. 22:113-121. https://doi.org/10.1094/PHP-10-20-0079-RS.   
- Growth, sporulation, and pathogenicity of the raspberry pathogen phytophthora rubi under different temperature and moisture regimes -(Peer Reviewed Journal)   Graham, K.A., Beck, B.R., Zasada, I.A., Scagel, C.F., Weiland, G.E. 2021. Growth, sporulation, and pathogenicity of the raspberry pathogen phytophthora rubi under different temperature and moisture regimes. Plant Disease. https://doi.org/10.1094/PDIS-09-20-1916-RE.   
- Field performance of wine grape rootstocks and fumigation during the establishment phase of a chardonnay vineyard in Washington  -(Peer Reviewed Journal)   East, K.E., Zasada, I.A., Tarara, J., Moyer, M.M. 2021. Field performance of wine grape rootstocks and fumigation during the establishment phase of a chardonnay vineyard in Washington. American Journal of Enology and Viticulture. 72:113-125. https://doi.org/10.5344/ajev.2020.20023.   
- Ectoparasitic nematodes: emerging challenges to wine grape production in the Pacific Northwest of North America  -(Book / Chapter)   Zasada, I.A., and Forge, T.A. 2022. Ectoparasitic nematodes: Emerging challenges to wine grape production in the Pacific Northwest of North America. In: Integrated Nematode Management: State of the Art and Vision for the Future. R. Sikora, J. Desager, and L. Molendijk (eds.). Wallingford, UK: CABI. p. 192-198.   
- New reduced-risk agricultural nematicides – Rationale and review  -(Peer Reviewed Journal)   Desaeger, J., Wram, C., Zasada, I.A. 2020. New reduced-risk agricultural nematicides – Rationale and review. Journal of Nematology. 52:1-16. https://doi.org/10.21307/jofnem-2020-091.   
- Differential response of Meloidogyne, Pratylenchus, Globodera, and Xiphenema species to the nematicide fluazaindolozine  -(Peer Reviewed Journal)   Wram, C.L., Zasada, I.A. 2020. Differential response of Meloidogyne, Pratylenchus, Globodera, and Xiphenema species to the nematicide fluazaindolozine. Phytopathology. 110(12):2003-2009. https://doi.org/10.1094/PHYTO-05-20-0189-R.   
- Prevalence of the root lesion nematode virus (RLNV1) in populations of Pratylenchus penetrans from North America  -(Peer Reviewed Journal)   Vieira, P., Peetz, A.B., Mimee, B., Saikai, K., Mollov, D.S., Macguidwin, A., Zasada, I.A., Nemchinov, L.G. 2020. Prevalence of the root lesion nematode virus (RLNV1) in populations of Pratylenchus penetrans from North America. Journal of Nematology. 52:e2020-45. https://doi.org/10.21307/jofnem-2020-045.   
- Plastic mulches improved plant growth and suppressed weeds in late summer-planted floricane raspberrry  -(Peer Reviewed Journal)   Zhang, H., Ghimire, S., Benedict, C., Zasada, I.A., Liu, H., Devetter, L., Miles, C. 2020. Plastic mulches improved plant growth and suppressed weeds in late summer-planted floricane raspberrry. HortScience. 55(4):565-572. https://doi.org/10.21273/HORTSCI14734-19.   
- Annual and perennial alleyway cover crops vary in their effects on physical, chemical, and biological properties of soil quality in Pacific Northwest red raspberry  -(Peer Reviewed Journal)   Rudolph, R.E., Zasada, I.A., Hesse, C.N., Devetter, L.W. 2020. Annual and perennial alleyway cover crops vary in their effects on physical, chemical, and biological properties of soil quality in Pacific Northwest red raspberry. HortScience. 55(3):344-352. https://doi.org/10.21273/HORTSCI14511-19.   
- Directed energy system technology for the control of soil borne fungal pathogens and plant-parasitic nematodes  -(Peer Reviewed Journal)   Riga, E., Crisp, J.D., McComb, G.J., Zasada, I.A., Weiland, G.E. 2020. Directed energy system technology for the control of soil borne fungal pathogens and plant-parasitic nematodes. Pest Management Science. 76(6):2072-2078. https://doi.org/10.1002/ps.5745.   
- The draft genomes of Radopholus similis populations from Costa Rica  -(Peer Reviewed Journal)   Wram, C.L., Hesse, C.N., Wasala, S.K., Howe, D.K., Peetz, A.B., Denver, D.R., Humprheys Pereira, D., Zasada, I.A. 2019. The draft genomes of Radopholus similis populations from Costa Rica. Journal of Nematology. 51:1-4. https://doi.org/10.21307/jofnem-2019-052.   
- How low can they go? Plant-parasitic nematodes in a Washington vineyard  -(Peer Reviewed Journal)   East, K.E., Moyer, M.M., Madden, N.M., Zasada, I.A. 2019. How low can they go? Plant-parasitic nematodes in a Washington vineyard. Catalyst: Discovery into Practice. 3(1):31-36. https://doi.org/10.5344/catalyst.2019.19001.   
- Effect of the trap crop, Solanum sisymbriifolium, on Globodera pallida, Globodera tabacum, and Globodera ellingtonae  -(Peer Reviewed Journal)   Dandurand, L.M., Zasada, I.A., Lamondia, J.A. 2019. Effect of the trap crop, Solanum sisymbriifolium, on Globodera pallida, Globodera tabacum, and Globodera ellingtonae. Journal of Nematology. 51:1-11. https://doi.org/10.21307/jofnem-2019-030.   
- Difference in toxicity and physiological response of Meloidogyne incognita to sub-lethal doses of post-plant nematicides  -(Peer Reviewed Journal)   Wram, C.L., Zasada, I.A. 2019. Difference in toxicity and physiological response of Meloidogyne incognita to sub-lethal doses of post-plant nematicides. Phytopathology. 109(9):1605-1613. https://doi.org/10.1094/PHYTO-11-18-0420-R.   
- Variable abundance and distribution of Wolbachia and Cardinium Endosymbionts in plant-parasitic nematode field populations  -(Peer Reviewed Journal)   Wasala, S.K., Brown, A.M., Kang, J., Howe, D.K., Peetz, A.B., Zasada, I.A., Denver, D.R. 2019. Variable abundance and distribution of Wolbachia and Cardinium Endosymbionts in plant-parasitic nematode field populations. Frontiers in Microbiology. 10:964. https://doi.org/10.3389/fmicb.2019.00964.   
- Pacific Northwest raspberry growers’ perceptions and practices regarding soil quality and fumigation  -(Peer Reviewed Journal)   Rudolph, R.E., Devetter, L.W., Benedict, C., Zasada, I.A. 2019. Pacific Northwest raspberry growers’ perceptions and practices regarding soil quality and fumigation. Renewable Agriculture and Food Systems. 29(4):482-489. https://doi.org/10.21273/HORTTECH04354-19.   
- Further elucidation of the host range of Globodera ellingtonae -(Peer Reviewed Journal)   Peetz, A.B., Baker, H., Zasada, I.A. 2019. Further elucidation of the host range of Globodera ellingtonae. Nematropica. 49(1):12-17.   
- Polyethylene and biodegradable plastic mulches improve growth, yield, and weed management in floricane red raspberry  -(Peer Reviewed Journal)   Zhang, H., Miles, C., Ghimire, S., Benedict, C., Zasada, I.A., Devetter, L.W. 2019. Polyethylene and biodegradable plastic mulches improve growth, yield, and weed management in floricane red raspberry. Scientia Horticulturae. 250:371-379. https://doi.org/10.1016/j.scienta.2019.02.067.   
- Current status of potato cyst nematodes in the United States and Canada  -(Peer Reviewed Journal)   Dandurand, L.M., Zasada, I.A., Wang, X., Mimee, B., Dejong, W., Novy, R.G., Whitworth, J.L., Kuhl, J. 2019. Current status of potato cyst nematodes in the United States and Canada. Annual Review of Phytopathology. 57:117-133. https://doi.org/10.1146/annurev-phyto-082718-100254.   
- Raspberry disease and nematode management -(Book / Chapter)     
- Trends in occurrence, distribution, and population densities of plant-parasitic nematodes in the Pacific Northwest of the United States from 2012 to 2016  -(Peer Reviewed Journal)   Zasada, I.A., Kitner, M.L., Wram, C., Wade, N., Ingham, R.E., Hafez, S., Mojtahedi, H., Chavoshi, S., Hammack, N. 2019. Trends in occurrence, distribution, and population densities of plant-parasitic nematodes in the Pacific Northwest of the United States from 2012 to 2016. Plant Health Progress. 20(1):20-28. https://doi.org/10.1094/PHP-11-18-0077-RS.   
- Developmental dynamics of Meloidogyne hapla in Washington wine grapes  -(Peer Reviewed Journal)   East, K.E., Zasada, I.A., Schreiner, R.P., Moyer, M.M. 2019. Developmental dynamics of Meloidogyne hapla in Washington wine grapes. Plant Disease. 103(5):966-971. https://doi.org/10.1094/PDIS-07-18-1195-RE.   
- Analysis of nematode-endosymbiont coevolution in the Xiphinema americanum species complex using molecular markers of variable evolutionary rates  -(Peer Reviewed Journal)   Howe, D.K., Smith, M., Tom, D.M., Brown, A.M., Peetz, A.B., Zasada, I.A., Denver, D.R. 2018. Analysis of nematode-endosymbiont coevolution in the Xiphinema americanum species complex using molecular markers of variable evolutionary rates. Nematology. 21(5):533-546. https://doi.org/10.1163/15685411-00003233.   
- Comparative genomics of Wolbachia-Cardinium dual endosymbiosis in a plant-parasitic nematode  -(Peer Reviewed Journal)   Brown, A.M., Wasala, S.K., Howe, D.K., Peetz, A.B., Zasada, I.A., Denver, D.R. 2018. Comparative genomics of Wolbachia-Cardinium dual endosymbiosis in a plant-parasitic nematode. Frontiers in Microbiology. 9:2482. https://doi.org/10.3389/fmicb.2018.02482.   
- Brassicaceous seed meal, root removal, and chemical fumigation vary in their effects on soil quality parameters and Pratylenchus penetrans in a replanted floricane raspberry production system  -(Peer Reviewed Journal)   Rudolph, R.E., Zasada, I.A., Hesse, C.N., Devetter, L.W. 2018. Brassicaceous seed meal, root removal, and chemical fumigation vary in their effects on soil quality parameters and Pratylenchus penetrans in a replanted floricane raspberry production system. Applied Soil Ecology. 113:44-51. https://doi.org/10.1016/j.apsoil.2018.08.024.   
- Vitis spp. rootstocks are poor hosts for Meloidogyne hapla, a nematode commonly found in Washington winegrape vineyards  -(Peer Reviewed Journal)   Zasada, I.A., Howland, A.D., Peetz, A.B., East, K., Moyer, M.M. 2019. Vitis spp. rootstocks are poor hosts for Meloidogyne hapla, a nematode commonly found in Washington winegrape vineyards. American Journal of Enology and Viticulture. 70(1):1-8. https://doi.org/10.5344/ajev.2018.18027.   
- Plant-parasitic nematodes of Idaho, Oregon, and Washington (Pacific Northwest) -(Book / Chapter)   Zasada, I.A., Dandurand, L., Gleason, C., Hagerty, C., Ingham, R. 2018. Plant-parasitic nematodes of Idaho, Oregon, and Washington (Pacific Northwest). In: Subbotin, S.A., Chitambar, J.J., editors. Plant Parasitic Nematodes in Sustainable Agriculture of North America, Vol. 1 – Canada, Mexico and Western USA. Cham, Switzerland: Springer. p. 211-240.   
- Effectiveness of nontarped broadcast fumigation and root removal on root lesion nematode and Fusarium and Pythium species in a red raspberry system  -(Peer Reviewed Journal)   Devetter, L., Watkinson, S., Zasada, I.A., Weiland, G.E., Hesse, C.N., Walters, T.W. 2018. Effectiveness of nontarped broadcast fumigation and root removal on root lesion nematode and Fusarium and Pythium species in a red raspberry system. Plant Health Progress. 19(2):168-175. https://doi.org/10.1094/PHP-01-18-0006-RS.   
- Resistance of potato breeding clones and cultivars to three species of potato cyst nematode  -(Peer Reviewed Journal)   Whitworth, J.L., Novy, R.G., Zasada, I.A., Dandurand, L., Wang, X., Kuhl, J.C. 2018. Resistance of potato breeding clones and cultivars to three species of potato cyst nematode. Plant Disease. 102(11):2120-2128. https://doi.org/10.1094/PDIS-12-17-1978-RE.   
- Introgression of Globodera resistance into the russet market class -(Abstract Only)     
- Contribution of a winter wheat cover crop to the maintenance of root lesion nematode populations in the red raspberry production system  -(Peer Reviewed Journal)   Rudolph, R.E., Walters, T.W., Devetter, L.W., Zasada, I.A. 2018. Contribution of a winter wheat cover crop to the maintenance of root lesion nematode populations in the red raspberry production system. HortTechnology. 28(2):182-188. https://doi.org/10.21273/HORTTECH03971-18.   
- Host resistance in potato to three Globodera species -(Abstract Only)     
- Breeding and development of Globodera-resistant potato varieties with long tuber shape and russet skin for production in the western United States -(Abstract Only)     
- Populations of Phytophthora rubi show little differentiation and high rates of migration among states in the Western United States  -(Peer Reviewed Journal)   Tabima, J.F., Coffey, M.D., Zasada, I.A., Grunwald, N.J. 2018. Populations of Phytophthora rubi show little differentiation and high rates of migration among states in the Western United States. Molecular Plant-Microbe Interactions. 31(6):614-622. https://doi.org/10.1094/MPMI-10-17-0258-R.   
- Role of population dynamics and damage thresholds in cyst nematode management -(Book / Chapter)   Bird, G., Zasada, I.A., Tylka, G.L. 2018. Role of population dynamics and damage thresholds in cyst nematode management. In: Perry, R.N, Moens, M., Jones, J.T., editors. Cyst Nematodes. Wallingford, UK: CAB International. p. 101-127.   
- Annual and perennial alleyway cover crops vary in their effects on Pratylenchus penetrans in Pacific Northwest red raspberry (Rubus idaeus) -(Peer Reviewed Journal)   Rudolph, R., Zasada, I.A., Devetter, L. 2017. Annual and perennial alleyway cover crops vary in their effects on Pratylenchus penetrans in Pacific Northwest red raspberry (Rubus idaeus). Journal of Nematology. 49(4):446-456.   
- Control of Globodera spp. using Brassica juncea seed meal and seed meal extract -(Peer Reviewed Journal)   Dandurand, L., Morra, M.J., Zasada, I.A., Phillips, W., Popova, I., Harder, C. 2017. Control of Globodera spp. using Brassica juncea seed meal and seed meal extract. Journal of Nematology. 49(4):437–445.   
- Pratylenchus species associated with blueberry (Vaccinium spp.) and weed species in the Pacific North-west of North America  -(Peer Reviewed Journal)   Zasada, I.A., Peetz, A.B., Forge, T.A. 2017. Pratylenchus species associated with blueberry (Vaccinium spp.) and weed species in the Pacific North-west of North America. Canadian Journal of Plant Pathology. 39(4):497-502. https://doi.org/10.1080/07060661.2017.1367724.   
- Whole genome sequences of the raspberry and strawberry pathogens Phytophthora rubi and P. fragariae -(Peer Reviewed Journal)   Tabima, J.F., Kronmiller, B.F., Press, C.M., Tyler, B.M., Zasada, I.A., Grunwald, N.J. 2017. Whole genome sequences of the raspberry and strawberry pathogens Phytophthora rubi and P. fragariae. Molecular Plant-Microbe Interactions. 30(10):767-769. https://doi.org10.1094/MPMI-04-17-0081-A.   
- Late summer disease symptoms in western Washington red raspberry fields associated with co-occurrence of Phytophthora rubi, Verticillium dahliae, and Pratylenchus penetrans, but not Raspberry bushy dwarf virus  -(Peer Reviewed Journal)   Weiland, G.E., Benedict, C., Zasada, I.A., Scagel, C.F., Beck, B.R., Davis, E.A., Graham, K., Peetz, A.B., Martin, R.R., Dung, J.K., Reyes Gaige, A., Thiessen, L.S. 2017. Late summer disease symptoms in western Washington red raspberry fields associated with co-occurrence of Phytophthora rubi, Verticillium dahliae, and Pratylenchus penetrans, but not Raspberry bushy dwarf virus. Plant Disease. 102(5):938-947. https://doi.org/10.1094/PDIS-08-17-1293-RE.   
- Draft transcriptome of Globodera ellingtonae -(Peer Reviewed Journal)   Phillips, W.S., Eves-van den Akker, S., Zasada, I.A. 2017. Draft transcriptome of Globodera ellingtonae. Journal of Nematology. 49(2):129–130.   
- The draft genome of Globodera ellingtonae -(Peer Reviewed Journal)   Phillips, W.S., Howe, D.K., Brown, A.M., Eves-van den Akker, S., Dettwyler, L., Peetz, A.B., Denver, D.R., Zasada, I.A. 2017. The draft genome of Globodera ellingtonae. Journal of Nematology. 49(2):127–128.   
- Expanding the scope of a single pathogen survey to solve the mystery of the ailing red raspberries -(Abstract Only)   Weiland, G.E., Benedict, C., Zasada, I.A., Beck, B.R., Davis, E.A., Graham, K., Peetz, A.B., Martin, R.R., Dung, J., Reyes Gaige, A., Thiessen, L. 2017. Expanding the scope of a single pathogen survey to solve the mystery of the ailing red raspberries [abstract]. Phytopathology. 107:S5.4. https://doi.org/10.1094/PHYTO-107-12-S5.1.   
- Alternatives to current fumigation practices in western states raspberry -(Peer Reviewed Journal)   Walters, T., Bolda, M., Zasada, I.A. 2017. Alternatives to current fumigation practices in western states raspberry. Plant Health Progress. 18:104-111. doi: 10.1094/PHP-RS-16-0068.   
- Developmental dynamics of Globodera ellingtonae in field-grown potato -(Peer Reviewed Journal)   Phillips, W.S., Kitner, M.L., Zasada, I.A. 2017. Developmental dynamics of Globodera ellingtonae in field-grown potato. Plant Disease. 101(7):1182-1187. doi: 10.1094/PDIS-10-16-1439-RE.   
- Species-specific diagnostics using a B-1,4-endoglucanase gene for Pratylenchus spp. occurring in the Pacific Northwest of North America -(Peer Reviewed Journal)   Peetz, A.B., Zasada, I.A. 2016. Species-specific diagnostics using a B-1,4-endoglucanase gene for Pratylenchus spp. occurring in the Pacific Northwest of North America. Nematology. 18(10):1219-1229. doi: 10.1163/15685411-00003026.   
- Genomic evidence for plant-parasitic nematodes as the earliest Wolbachia hosts -(Peer Reviewed Journal)   Brown, A.M., Wasala, S.K., Howe, D.K., Peetz, A.B., Zasada, I.A., Denver, D. 2016. Genomic evidence for plant-parasitic nematodes as the earliest Wolbachia hosts. Scientific Reports. 6(34955). doi:10.1038/srep34955.   
- The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers -(Peer Reviewed Journal)   Phillips, W.S., Brown, A.M., Howe, D.K., Peetz, A.B., Blok, V., Denver, D., Zasada, I.A. 2016. The mitochondrial genome of Globodera ellingtonae is composed of two circles with segregated gene content and differential copy numbers. Biomed Central (BMC) Genomics. 17:706-719. doi: 10.1186/s12864-016-3047-x.   
- Genome skimming: A rapid approach to gaining diverse biological insights into multicellular pathogens -(Peer Reviewed Journal)   Denver, D., Brown, A.M., Howe, D.K., Peetz, A.B., Phillips, W.S., Zasada, I.A. 2016. Genome skimming: A rapid approach to gaining diverse biological insights into multicellular pathogens. PLoS Pathogens. 12(8):e1005713. doi: 10.1371/journal.ppat.1005713.   
- Effect of application timing of oxamyl in nonbearing raspberry for Pratylenchus penetrans management -(Peer Reviewed Journal)   Zasada, I.A., Walters, T.W. 2016. Effect of application timing of oxamyl in nonbearing raspberry for Pratylenchus penetrans management. Journal of Nematology. 48:177-182.   
- Distribution and longevity of Pratylenchus penetrans in the red raspberry production system -(Peer Reviewed Journal)   Kroese, D.R., Weiland, G.E., Zasada, I.A. 2016. Distribution and longevity of Pratylenchus penetrans in the red raspberry production system. Journal of Nematology. 48(4):241–247.   
- The relationship between temperature and development in Globodera ellingtonae -(Peer Reviewed Journal)   Phillips, W.S., Kieren, S.R., Zasada, I.A. 2015. The relationship between temperature and development in Globodera ellingtonae. Journal of Nematology. 47:283-289.   
- Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis -(Peer Reviewed Journal)   Brown, A.M., Howe, D.K., Wasala, S.K., Peetz, A.B., Zasada, I.A., Denver, D.R. 2015. Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis. Genome Biology and Evolution. 7(9):2727-2746. doi: 10.1093/gbe/evv176.   
- Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis -(Peer Reviewed Journal)   Brown, A.M., Howe, D.K., Wasala, S.K., Peetz, A.B., Phillips, W.S., Zasada, I.A., Denver, D.R. 2015. Comparative genomics of a plant-parasitic nematode endosymbiont suggest a role in nutritional symbiosis. Genome Biology and Evolution. 7:2727-2746.   
- Nematode parasites of grapevines -(Book / Chapter)   Zasada, I.A., Ferris, H. 2017. Nematode parasites of grapevines. In: Wilcox, W.F., Gubler, W.D., Uyemoto, J.K., editors. Compendium of Grape Diseases, Disorders, and Pests. 2nd edition. Minneapolis, MN: APS Press. p. 240.   
- Host status of own-rooted Vitis vinifera varieties to Meloidogyne hapla -(Peer Reviewed Journal)     
- Root removal to improve disease management in replanted Washington red raspberry fields -(Abstract Only)   Weiland, G.E., Zasada, I.A., Devetter, L.W., Walters, T., Rudolph, R., Watkinson, S. 2015. Root removal to improve disease management in replanted Washington red raspberry fields. American Phytopathological Society Annual Meeting, August 1-5, 2015, Pasadena, California.   
- Impact of grapevine (Vitis vinifera) varieties on reproduction of the northern root-knot nematode (Meloidogyne hapla) -(Peer Reviewed Journal)   Howland, A.D., Skinkis, P.A., Wilson, J.H., Riga, E., Pinkerton, J.N., Schreiner, R.P., Zasada, I.A. 2015. Impact of grapevine (Vitis vinifera) varieties on reproduction of the northern root-knot nematode (Meloidogyne hapla). Journal of Nematology. 47(2):141–147.   
- Mustard seed meal for management of root-knot nematode and weeds in tomato production  -(Peer Reviewed Journal)   Meyer, S.L., Zasada, I.A., Rupprecht, S.M., Vangessel, M., Hooks, C., Morra, M., Everts, K. 2015. Mustard seed meal for management of root-knot nematode and weeds in tomato production. HortTechnology. 25(2):192-202.   
- Impact of Pratylenchus penetrans on establishment of red raspberry -(Peer Reviewed Journal)   Zasada, I.A., Weiland, G.E., Han, Z., Walters, T.W., Moore, P.P. 2015. Impact of Pratylenchus penetrans on establishment of red raspberry. Plant Disease. 99(7):939-946.   
- Effect of storage environment on hatching of Globodera ellingtonae -(Peer Reviewed Journal)   Ingham, R.E., Kroese, D.R., Zasada, I.A. 2015. Effect of storage environment on hatching of Globodera ellingtonae. Journal of Nematology. 47:45-51.   
- Spatial distribution of plant-parasitic nematodes in semi-arid Vitis vinifera vineyards in Washington -(Peer Reviewed Journal)   Howland, A.D., Schreiner, R.P., Zasada, I.A. 2014. Spatial distribution of plant-parasitic nematodes in semi-arid Vitis vinifera vineyards in Washington. Journal of Nematology. 46:321-330.   
- Host status of Rubus species and hybrids for the root lesion nematode, Pratylenchus penetrans -(Peer Reviewed Journal)   Zasada, I.A., Moore, P.P. 2014. Host status of Rubus species and hybrids for the root lesion nematode, Pratylenchus penetrans. HortScience. 49:1128-1131.   
- Pathogenicity, fungicide resistance, and genetic variability of Phytophthora rubi isolates from raspberry (Rubus idaeus) in the Western United States -(Peer Reviewed Journal)   Stewart, J.E., Kroese, D.R., Tabima, J.F., Larsen, M.M., Fieland, V.J., Press, C.M., Zasada, I.A., Grunwald, N.J. 2014. Pathogenicity, fungicide resistance, and genetic variability of Phytophthora rubi isolates from raspberry (Rubus idaeus) in the Western United States. Plant Disease. 98:1702-1708.   
- Mustard seed meal amendments for suppression of Meloidogyne incognita on tomato -(Abstract Only)   Meyer, S.L., Zasada, I.A., Rupprecht, S.M., Hooks, C.R., Morra, M.J., Everts, K.L. 2014. Mustard seed meal amendments for suppression of Meloidogyne incognita on tomato. Phytopathology. 104(S3):80.   
- Impact of Pratylenchus penetrans on established red raspberry productivity -(Peer Reviewed Journal)   Han, Z., Walters, T.W., Zasada, I.A. 2014. Impact of Pratylenchus penetrans on established red raspberry productivity. Plant Disease. 98:1514-1520.   
- Identifying rates of meadowfoam (Limnanthes alba) seed meal needed for suppression of Meloidogyne hapla and Pythium irregulare in soil -(Peer Reviewed Journal)   Ersahin, Y.S., Weiland, G.E., Zasada, I.A., Reed, R.L., Stevens, J.F. 2014. Identifying rates of meadowfoam (Limnanthes alba) seed meal needed for suppression of Meloidogyne hapla and Pythium irregulare in soil. Plant Disease. 98(9):1253-1260.   
- Using mitogenomic and nuclear ribosomal sequence data to investigate the phylogeny of the Xiphinema americanum species complex -(Peer Reviewed Journal)   Zasada, I.A., Peetz, A.B., Howe, D.K., Wilhelm, L.J., Cheam, D., Denver, D.R., Smythe, A.B. 2014. Using mitogenomic and nuclear ribosomal sequence data to investigate the phylogeny of the Xiphinema americanum species complex. PLoS One. 9:e90035.   
- A new chorismate mutase gene identified from Globodera ellingtonae and its utility as a molecular diagnostic marker -(Peer Reviewed Journal)   Chronis, D.N., Chen, S., Skantar, A.M., Zasada, I.A., Wang, X. 2014. A new chorismate mutase gene identified from Globodera ellingtonae and its utility as a molecular diagnostic marker. European Journal of Plant Pathology. 139(2):239-246. DOI:10.1007/s10658-014-0385-x.   
- Impact and occurrence of Phytophthora rubi and Pratylenchus penetrans in commercial red raspberry (Rubus idaeus) fields in northwestern Washington -(Peer Reviewed Journal)   Gigot, J., Walters, T., Zasada, I.A. 2013. Impact and occurrence of Phytophthora rubi and Pratylenchus penetrans in commercial red raspberry (Rubus idaeus) fields in northwestern Washington. International Journal of Fruit Science. 13:357-372.   
- Microbial community structure and abundance in the rhizosphere and bulk soil of a tomato cropping system that includes cover crops -(Peer Reviewed Journal)   Maul, J.E., Buyer, J.S., Lehman, R.M., Culman, S., Blackwood, C., Roberts, D.P., Zasada, I.A., Teasdale, J.R. 2014. Microbial community structure and abundance in the rhizosphere and bulk soil of a tomato cropping system that includes cover crops. Applied Soil Ecology. 77:42-50. DOI: 10.1016/j.apsoil.2014.01.002.   
- Plant-parasitic nematodes associated with grapevines, Vitis vinifera, in Washington and Idaho -(Peer Reviewed Journal)   Zasada, I.A., Riga, E., Pinkerton, J.N., Wilson, J.H., Schreiner, R.P. 2012. Plant-parasitic nematodes associated with grapevines, Vitis vinifera, in Washington and Idaho. American Journal of Enology and Viticulture. 63:522-528.   
- Navigating the publication process for the Journal of Nematology -(Abstract Only)     
- 4r2Host status of different potato (Solanum tuberosum) varieties and hatching in root diffusate of Globodera ellingtonae -(Peer Reviewed Journal)   Zasada, I.A., Peetz, A.B., Wade, N., Navarre, D.A., Ingham, R.E. 2013. Host status of different potato (Solanum tuberosum) varieties and hatching in root diffusate of Globodera ellingtonae. Journal of Nematology. 45:195-201.   
- Integration of brassicaceous seed meals into red raspberry production systems -(Peer Reviewed Journal)   Gigot, J., Zasada, I.A., Walters, T.W. 2012. Integration of brassicaceous seed meals into red raspberry production systems. Applied Soil Ecology. 64:23-31.   
- Host status and damage potential of Paratrichodorus renifer and Pratylenchus penetrans (Nematoda) to blueberry (Vaccinium spp.) -(Peer Reviewed Journal)   Walters, T.A., Zasada, I.A., Pinkerton, J.N., Koch, C. 2012. Host status and damage potential of Paratrichodorus renifer and Pratylenchus penetrans (Nematoda) to blueberry (Vaccinium spp.). Canadian Journal of Plant Pathology. 34(2):277-282.   
- Consequences of Mesocriconema xenoplax parasitism on ‘Pinot noir’ grapevines grafted on rootstocks of varying susceptibility -(Peer Reviewed Journal)   Schreiner, R.P., Pinkerton, J., Zasada, I.A. 2012. Consequences of Mesocriconema xenoplax parasitism on ‘Pinot noir’ grapevines grafted on rootstocks of varying susceptibility. American Journal of Enology and Viticulture. 63:251-261.   
- Activity of meadowfoam (Limnanthes alba) seed meal glucolimnanthin degradation products against soilborne pathogens -(Peer Reviewed Journal)   Zasada, I.A., Weiland, G.E., Reed, R.L., Stevens, J.F. 2011. Activity of meadowfoam (Limnanthes alba) seed meal glucolimnanthin degradation products against soilborne pathogens. Journal of Agricultural and Food Chemistry. 60:339-345.   
- Delayed response to ring nematode (Mesocriconema xenoplax) feeding on grape roots linked to vine carbohydrate reserves and nematode feeding pressure -(Peer Reviewed Journal)   Schreiner, R.P., Pinkerton, J., Zasada, I.A. 2012. Delayed response to ring nematode (Mesocriconema xenoplax) feeding on grape roots linked to vine carbohydrate reserves and nematode feeding pressure. Soil Biology and Biochemistry. 45:89-97.   
- Nematode-borne plant viruses -(Book / Chapter)   Macfarlane, S.A., Zasada, I.A., Lemaire, O., Demangeat, G. 2016. Nematode-borne plant viruses. In: Brown, J.K., editor. Vector-Mediated Transmission of Plant Pathogens. St. Paul, MN: APS Press. p. 365-378.   
- Comparison of Meldola’s Blue staining and hatching assay with potato root diffusate for assessment of Globodera sp. egg viability -(Peer Reviewed Journal)   Kroese, D., Zasada, I.A., Ingham, R.E. 2011. Comparison of Meldola’s Blue staining and hatching assay with potato root diffusate for assessment of Globodera sp. egg viability. Journal of Nematology. 43(3/4):182-186.   
- Post-plant nematicides for the control of Pratylenchus penetrans in red raspberry -(Abstract Only)     
- Identification of commonly encountered Pratylenchus in Oregon -(Abstract Only)   Zasada, I.A., Peetz, A.B., Wade, N., Ingham, R.E. 2011. Identification of commonly encountered Pratylenchus in Oregon. Journal of Nematology. 43(3/4):297.   
- Mustard seed meal mixtures: management of Meloidogyne incognita on pepper and potential phytotoxicity -(Peer Reviewed Journal)   Meyer, S.L., Zasada, I.A., Orisajo, S.B., Morra, M.J. 2011. Mustard seed meal mixtures: management of Meloidogyne incognita on pepper and potential phytotoxicity. Journal of Nematology. 43(1):7-15.   
- Evaluation of Rubus spp. and Hybrids for Root Lesion Nematode, Pratylenchus penetrans, Resistance -(Abstract Only)     
- 2011 Pest Management Guide for Grapes in Washington -(Experiment Station)   Hoheisel, G., Walsh, D., Grove, G., Rayapati, N., Miller, T., Zasada, I.A. 2011. 2011 Pest management guide for grapes in Washington. Washington State Extension Publications. EB0762.   
- Response of root-knot nematodes and Palmer amaranth to tillage and rye green manure -(Peer Reviewed Journal)   Timper, P., Davis, R.F., Webster, T.M., Brenneman, T., Meyer, S.L., Zasada, I.A., Cai, G., Rice, C. 2011. Response of root-knot nematodes and Palmer amaranth to tillage and rye green manure. Agronomy Journal. 103(3):813-821.   
- Morphological and molecular characterization of Globodera populations from Oregon and Idaho -(Peer Reviewed Journal)   Skantar, A.M., Handoo, Z.A., Carta, L.K., Zasada, I. A., Ingham, R.E., Chitwood, D.J. 2011. Morphological and molecular characterization of Globodera populations from Oregon and Idaho. Phytopathology. 101:(4)480-491.   
- 2010 Pest Management Guide for Wine Grapes in Oregon -(Experiment Station)     
- Challenges in producing nematode and pathogen free fruit and nut nursery crops in the United States -(Peer Reviewed Journal)   Zasada, I.A., Walters, T.W., Hanson, B.D. 2010. Challenges in producing nematode and pathogen free fruit and nut nursery crops in the United States. Outlooks on Pest Management. 21:246-250.   
- Post-Plant nematicides for the control of root lesion nematode in red raspberry -(Peer Reviewed Journal)   Zasada, I.A., Walters, T.W., Pinkerton, J. 2011. Post-Plant nematicides for the control of root lesion nematode in red raspberry. HortTechnology. 20:856-862.   
- Effects of Organic Amendments and Tillage on Soil Microorganisms and Microfauna -(Peer Reviewed Journal)   Treonis, A.M., Austin, E.A., Buyer, J.S., Maul, J.E., Spicer, L., Zasada, I.A. 2010. Effects of organic amendments and tillage on soil microorganisms and microfauna. Applied Soil Ecology. 46(1):103-110.   
- Identification and Distribution of Pratylenchus spp. on Blueberry -(Abstract Only)   Zasada, I.A., Forge, T.A. 2010. Identification and istribution of Pratylenchus spp. on blueberry. Society of Nematologists. 42(3):278.   
- Phytotoxicity of mustard seed meals alone and in combinations -(Abstract Only)   Meyer, S.L.F., Zasada, I.A., Orisajo, S.B. 2010. Phytotoxicity of mustard seed meals alone and in combinations [abstract}. Journal of Nematology. 42:258.   
- Brassicaceous Seed Meals as Soil Amendments to Suppress the Plant-Parasitic Nematodes Pratylenchus penetrans and Meloidogyne incognita   -(Peer Reviewed Journal)   Zasada, I.A., Meyer, S.L., Morra, M.J. 2010. Brassicaceous seed meals as soil amendments to suppress the plant-parasitic nematodes Pratylenchus penetrans and Meloidogyne incognita. Journal of Nematology. 41:221-227.   
- Occurrence and Distribution of Plant-Parasitic Nematodes in Pacific Northwest blueberry Production Systems    -(Peer Reviewed Journal)   Zasada, I.A., Pinkerton, J., Forge, T. 2010. Occurrence and distribution of plant-parasitic nematodes in Pacific Northwest blueberry production systems . International Journal of Fruit Science. 10:123-133.   
- Managing Nematodes without Methyl Bromide -(Peer Reviewed Journal)   Zasada, I.A., Halbrendt, J.M., Burelle, N.K., Lamondia, J., Mckenry, M.V., Noling, J. 2010. Managing Nematodes without Methyl Bromide. Annual Review of Phytopathology. 48:311-328.   
- The Impact of Ring Nematode (Mesocriconema xenoplax) on Grapevines and Grafted onto Different Rootstocks in Field Microplots -(Abstract Only)   Schreiner, R.P., Pinkerton, J.M., Zasada, I.A., Bryla, D.R. 2010. The impact of ring nematode (Mesocriconema xenoplax) on grapevines and grafted onto different rootstocks in field microplots. HortScience. 45:S140.   
- Factors Affecting Soil Microbial Community Structure in Tomato Cropping Systems -(Peer Reviewed Journal)   Buyer, J.S., Teasdale, J.R., Roberts, D.P., Zasada, I.A., Maul, J.E. 2010. Factors Affecting Soil Microbial Community Structure in Tomato Cropping Systems. Soil Biology and Biochemistry. 42:831-841.   
- Factors Affecting Soil Microbial Community Structure in Tomato Cropping Systems -(Peer Reviewed Journal)   Buyer, J.S., Teasdale, J.R., Roberts, D.P., Zasada, I.A., Maul, J.E. 2010. Factors Affecting Soil Microbial Community Structure in Tomato Cropping Systems. Soil Biology and Biochemistry. 42:831-841.   
- Brassicaceous and rye cover crops altered free-living soil nematode community composition -(Peer Reviewed Journal)   Stocking, L.A., Weil, R., Zasada, I.A., Momen, B., Sardanelli, S. 2010. Brassicaceous and rye cover crops altered free-living soil nematode community composition. Applied Soil Ecology. 45:1-12.   
- Methyl bromide alternatives for raspberry nurseries -(Proceedings)   Walters, T., Patrika, M., Zasada, I.A., Pinkerton, J.M. 2009. Methyl bromide alternatives for raspberry nurseries. Proceedings of Methyl Bromide Alternatives Conference. 26-1 - 26-4.   
- Effects of benzyl isothiocyanate on the reproduction of Meloidogyne incognita on Glycine max and Capsicum annuum -(Peer Reviewed Journal)   Masler, E.P., Zasada, I.A., Sardanelli, S., Rogers, S.T., Halbrendt, J.M. 2010. Effects of benzyl isothiocyanate on the reproduction of Meloidogyne incognita on Glycine max and Capsicum annuum. Nematology. 12(5):693-699.   
- Methyl Bromide Alternatives for Raspberry Nurseries -(Proceedings)   Walters, T., Patrika, M., Zasada, I.A., Pinkerton, J.M. 2010. Methyl bromide alternatives for raspberry nurseries. Proceedings of Methyl Bromide Alternatives Conference. Available:http://mbao.rg/2009/Proceedings/026WaltersTRBnurssummary09.pdf   
- Managing Plant-Parasitic Nematodes in Established Red Raspberry Fields -(Peer Reviewed Journal)   Walters, T.W., Pinkerton, J.M., Riga, E., Zasada, I.A., Particka, M., Yoshida, H., Ishida, H. 2009. Managing plant-parasitic nematodes in established red raspberry fields. HortTechnology. 19:762-768.   
- DIBOA: Fate in Soil and Effects on Root-knot Nematode Egg Numbers -(Peer Reviewed Journal)   Meyer, S.L., Rice, C., Zasada, I.A. 2009. DIBOA: Fate in Soil and Effects on Root-knot Nematode Egg Numbers. Soil Biology and Biochemistry. 41:1555-1560.   
- Effectiveness of Soil Solarization on Management of Phytophthroa rubi and Pratylenchus penetrans in Northwestern Washington -(Abstract Only)   Gigot, J., Zasada, I.A., Walters, T. 2009. Effectiveness of soil solarization on management of Phytophthroa rubi and Pratylenchus penetrans in northwestern Washington. Society of Nematologists. 41(4):332.   
- Detecting Microbial Nucleic Acids within Nematode Bodies: A Photo Essay -(Abstract Only)     
- Pathogenicity of Plant-Parasitic Nematodes on Blueberry -(Abstract Only)   Zasada, I.A., Forge, T., Pinkerton, J.M. 2009. Pathogenicity of plant-parasitic nematodes on blueberry. Journal of Nematology. 41(4):397.   
- Alternatives to Methyl Bromide for Raspberry Nursery -(Abstract Only)     
- First Report in North America of Paratrichodorus renifer, a Nematode Parasite of Highbush Blueberry in the Pacific Northwest and Canada -(Abstract Only)   Forge, T., Koch, C., Pinkerton, J.M., Zasada, I.A. 2009. First Report in North America of Paratrichodorus renifer, a nematode parasite of highbush blueberry in the Pacific Northwest and Canada.Phytopathology. 99:S35.   
- Occurrence of Phytophthora rubi and Pratylenchus penetrans in Northwestern Washington Red Raspberry Fields -(Abstract Only)   Gigot, J., Zasada, I.A., Walters, T. 2009. Occurrence of Phytophthora rubi and Pratylenchus penetrans in northwestern Washington red raspberry Fields. Phytopathology. 99:S43.   
- Comparison of Brassicaceae for Meloidogyne incognita and Pratylenchus penetrans Control -(Abstract Only)   Zasada, I.A., Meyer, S.L., Morra, M.J. 2009. Comparison of Brassicaceae for Meloidogyne incognita and Pratylenchus penetrans control. Phytopathology. 99:S148.   
-  Behavioral Response of Meloidogyne incognita to Benzyl Isothiocyanate -(Peer Reviewed Journal)   Zasada, I.A., Masler, E.P., Rogers, S.T., Halbrendt, J.M. 2009.  Behavioral response of Meloidogyne incognita to benzyl isothiocyanate. Nematology. 11:603-610.   
- Phytotoxicity of Clove Oil to Vegetable Crop Seedlings and Nematotoxicity to Root-knot Nematodes -(Peer Reviewed Journal)   Meyer, S.L.F., Lakshman, D.K., Zasada, I.A., Vinyard, B.T., Chitwood, D.J. 2008. Phytotoxicity of clove oil to vegetable crop seedlings and nematotoxicity to Root-knot Nematodes. HortTechnology. 18:631-638.   
- Alteration of the soil environment to maximize Meloidogyne incognita suppression by an alkaline-stabilized biosolid amendment -(Peer Reviewed Journal)   Zasada, I.A., Tenuta, M. 2008. Alteration of the soil environment to maximize Meloidogyne incognita suppression by an alkaline-stabilized biosolid amendment. Applied Soil Ecology. 40:309-317.   
- Effects of cover cropping on soil and rhizosphere microbial community structure in tomato production systems -(Abstract Only)   Buyer, J.S., Zasada, I.A., Roberts, D.P., Teasdale, J.R. 2008. Effects of cover cropping on soil and rhizosphere microbial community structure in tomato production systems [abstract]. Microbial Ecology International Symposium. p. 51.   
- Behavioral Response of Meloidogyne incognita to Benzyl Isothiocyanate -(Abstract Only)   Zasada, I.A., Masler, E.P., Halbrendt, J.M. 2008. Behavioral Response of Meloidogyne incognita to Benzyl Isothiocyanate. International Biofumigation Symposium.   
- Evaluation of Millet and Rapeseed as Rotation or Green Manure Crops to Control Nematodes in Orchard Replant  -(Abstract Only)   Halbrendt, J.M., Lamondia, J.A., Zasada, I.A. 2008. Evaluation of millet and rapeseed as rotation or green manure crops to control nematodes in orchard replant . International Congress of Nematology. Meeting Abstracts.   
- ROLE AND PERSISTENCE OF RYE ALLELOPATHIC ACTIVITY IN SOIL -(Abstract Only)   Teasdale, J.R., Rice, C.P., Zasada, I.A. 2008. Role and persistence of rye allelopathic activity in soil [abstract]. 5th World Congress on Allelopathy. 176:88-89.   
- Clove oil and fungus compounds: Can nematode suppression be achieved without phytotoxicity? -(Abstract Only)   Meyer, S.L., Lakshman, D.K., Zasada, I.A., Vinyard, B.T., Chitwood, D.J., Shemshura, O.N., Bekmakhanova, N.E., Mazunina, M.N., Yeskalieva, B.K., Masler, E.P. 2007. Clove oil and fungus compounds: Can nematode suppression be achieved without phytotoxicity [abstract]? Journal of Nematology. 39:92.   
- Suppression of Meloidogyne incognita population densities with DIBOA -(Abstract Only)     
- Processed Biosolids: Unwanted Wastes or Products for Soybean Cyst Nematode Control -(Peer Reviewed Journal)   Zasada, I.A. 2008. Processed Biosolids: Unwanted Wastes or Products for Soybean Cyst Nematode Control. Journal of Nematology. 4th National Soybean Cyst Nematode Conference Proceedings. p. 7-10.   
- EFFECTS OF COVER CROPPING AND PLASTICULTURE ON SOIL AND RHIZOSPHERE MICROBIAL COMMUNITY STRUCTURE IN TOMATO PRODUCTION SYSTEMS -(Abstract Only)   Buyer, J.S., Roberts, D.P., Zasada, I.A., Teasdale, J.R. 2007. Effects of cover cropping and plasticulture on soil and rhizosphere microbial community structure in tomato production systems [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts.   
- Potential of an Alkaline-stabilized Biosolid to Manage Nematodes: Case Studies on Soybean Cyst and Root-knot Nematodes -(Peer Reviewed Journal)   Zasada, I.A., Avendano, F., Li, Y.C., Logan, T., Malakeberhan, H., Koenning, S.R., Tylka, G. 2008. Potential of an Alkaline-stabilized Biosolid to Manage Nematodes: Case Studies on Soybean Cyst and Root-knot Nematodes. Plant Disease. 92(1):04-13.   
- Dose-response effects of clove oil from Syzygium aromaticum on the root-knot nematode Meloidogyne incognita -(Peer Reviewed Journal)   Meyer, S.L., Lakshman, D.K., Zasada, I.A., Vinyard, B.T., Chitwood, D.J. 2008. Dose-response effects of clove oil from Syzygium aromaticum on the root-knot nematode Meloidogyne incognita. Pest Management Science. 64:223-229.   
- HATCHING BEHAVIOR IN HETERODERA GLYCINES IN RESPONSE TO LOW TEMPERATURE -(Peer Reviewed Journal)   Masler, E.P., Zasada, I.A., Sardanelli, S. 2008. Hatching behavior in Heterodera glycines in response to low temperature. Comparative Parasitology. 75(1):76-81.   
- Fate of Benzoxazinoids from Rye (Secale cereale) in soil and the implication on Plant-Parasitic Nematode Management. -(Abstract Only)   Zasada, I.A., Meyer, S.L., Rice, C. 2007. Fate of benzoxazinoids from rye (Secale cereale) in soil and the implication on plant-parasitic nematode management [abstract]. Journal of Nematology. 39:88.   
- Research collaborations can improve the use of organic amendments for plant-parasitic nematode management -(Abstract Only)   Zasada, I.A. 2007. Research collaborations can improve the use of organic amendments for plant-parasitic nematode management [abstract]. American Phytopathology Society Abstracts. 97:S156.   
- EVALUATION OF PROPARGYL BROMIDE AS A SOIL FUMIGANT -(Peer Reviewed Journal)   Zasada, I.A., Elmore, C.L., Yakabe, L.A., Macdonald, J.D. 2007. Evaluation of Propargyl bromide as a soil fumigant. HortScience. 42:1212-1216.   
- Application of Alkaline-stabilized Biosolids for Meloidogyne incognita Suppression in Microplots -(Peer Reviewed Journal)   Zasada, I.A., Rogers, S.T., Sardanelli, S. 2007. Application of Alkaline-stabilized Biosolids for MeloidogyneIIncognita Suppression in Microplots. Nematology. 9:123-129.   
- Meloidogyne Incognita Host Suitability and Benzoxazinoid Content of Rye (secale cereale) Cultivars -(Peer Reviewed Journal)   Zasada, I.A., Rice, C.P., and Meyer, S.L. 2007. Improving the use of rye (Secale cereale) for nematode management: potential to select cultivars based on Meloidogyne incognita host status and benzoxazinoid content. Nematology. 9:53-60.   
- EFFECTS OF COVER CROPPING AND PLASTICULTURE ON SOIL AND RHIZOSPHERE MICROBIAL COMMUNITY STRUCTURE IN TOMATO PRODUCTION SYSTEMS -(Abstract Only)   Buyer, J.S., Roberts, D.P., Zasada, I.A., Teasdale, J.R. 2006. Effects of cover cropping and plasticulture on soil and rhizosphere microbial community structure in tomato production systems [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts.   
- USDA-ARS RESEARCH ON PRACTICES COMPATIBLE WITH ORGANIC AGRICULTURE FOR MANAGEMENT OF PLANT-PARASITIC NEMATODES ON VEGETABLE CROPS -(Peer Reviewed Journal)   Meyer, S.L., Burelle, N.K., Davis, R.F., Thies, J.A., Zasada, I.A. 2007. USDA-ARS research on practices compatible with organic agriculture for management of plant-parasitic nematodes on vegetable crops. Journal of Vegetable Science. 12:47-81.   
- PLANTAGO LANCEOLATA AND PLANTAGO RUGELII EXTRACTS ARE TOXIC TO MELOIDOGYNE INCOGNITA BUT NOT TO CERTAIN MICROBES -(Peer Reviewed Journal)   Meyer, S.L., Zasada, I.A., Roberts, D.P., Vinyard, B.T., Lakshman, D.K., Lee, J., Chitwood, D.J., Carta, L.K. 2006. Plantago lanceolata and plantago rugelii extracts are toxic to meloidogyne incognita but not to certain microbes. Journal of Nematology 38(3):333-338.   
- CHARACTERIZATION OF VELVETBEAN (MUCUNA PRURIENS) LINES WITH RESPECT TO MORPHOLOGICAL TRAITS, PHENOLOGY, AND BIOMASS PRODUCTION -(Peer Reviewed Journal)   Klassen, W., Codallo, M., Zasada, I.A., Abdul-Baki, A. 2006. Characterization of velvetbean (mucuna pruriens) lines with respect to morphological traits, phenology, and biomass production. Proceedings of Florida State Horticultural Society. 119:258-262   
- UNDERSTANDING HOW SOIL PROPERTIES AFFECT THE ABILITY OF ORGANIC AMENDMENTS TO SUPPRESS PLANT-PARASITIC NEMATODES -(Abstract Only)   Zasada, I.A. 2006. Understanding how soil properties affect the ability of organic amendments to suppress plant-parasitic nematodes [abstract]. Journal of Nematology. 38:303.   
- PLANT-DERIVED COMPOUNDS ACTIVE AGAINST MELOIDOGYNE INCOGNITA -(Abstract Only)   Meyer, S.L., Zasada, I.A., Roberts, D.P., Vinyard, B.T., Lakshman, D.K., Lee, J.K., Chitwood, D.J., Carta, L.K. 2006. Plant-derived compounds active against meloidogyne incognita [abstract]. Journal of Nematology. 38:283.   
- VELVETBEAN (MUCUNA PRURIENS) EXTRACTS:  IMPACT ON MELOIDOGYNE INCOGNITA, LYCOPERSICON ESCULENTUM AND LATUCA SATIVA SURVIVAL -(Peer Reviewed Journal)   Zasada, I.A., Klassen, W., Meyer, S.L., Codello, M., Abdul Baki, A.A. 2006. Velvetbean (mucuna pruriens) extracts:  impact on meloidogyne incognita, lycopersicon esculentum and latuca sativa survival. Pest Management Science. 62:1122-1127.   
- MANIPULATION OF HATCHING BEHAVIOR IN HETERODERA GLYCINES THROUGH EXPOSURE TO LOW TEMPERATURE -(Peer Reviewed Journal)   Masler, E.P., Zasada, I.A., Sardanelli, S. 2005. Manipulation of hatching behavior in heterodera glycines through exposure to low temperature. Journal of Nematology 37: 380.   
- INDIRECT EFFECTS OF ROOT HERBIVORY BY INSECT LARVAE ON THE STRUCTURE OF THE SOIL FOOD WEB -(Abstract Only)   Treonis, A., Zasada, I.A. 2005. Indirect effects of root herbivory by insect larvae on the structure of the soil food web. Journal of Nematology 37: 400.   
- RE-THINKING A RYE COVER CROP AS A PLANT-PARASITIC NEMATODE MANAGEMENT TOOL -(Abstract Only)   Zasada, I.A., Meyer, S.L., Rice, C. 2005. Re-thinking a rye cover crop as a plant-parasitic nematode management tool. Journal of Nematology 37:405.   
- BIOLOGICALLY BASED TECHNOLOGIES FOR THE SUPPRESSION OF SOILBORNE PATHOGENS OF VEGETABLES -(Review Article)   Roberts, D.P., Abdul Baki, A.A., Zasada, I.A., Meyer, S.L., Waldy, K. 2005. Biologically based technologies for the suppression of soilborne pathogens of vegetables. Review Article. Recent Res. Develop. Applied Microbiol. Biotechnol. 2:51-67.   
- EFFECTS OF N-VIRO SOIL(TM), CALCIUM HYDROXIDE, AND A STREPTOMYCES SP. ON MELOIDOGYNE INCOGNITA POPULATIONS ON CANTALOUPE -(Abstract Only)   Meyer, S.L., Zasada, I.A., Tenuta, M., Roberts, D.P. 2005. Effects of n-viro soil(tm), calcium hydroxide, and a streptomyces sp. on meloidogyne incognita populations on cantaloupe. Phytopathology (Supplement). 95:S70.   
- MANIPULATION OF HATCHING BEHAVIOR IN HETERODERA GLYCINES THROUGH EXPOSURE TO LOW TEMPERATURE -(Abstract Only)   Masler, E.P., Zasada, I.A., Sardanelli, S. 2005. Manipulation of hatching behavior in Heterodera glycines through exposure to low temperature [abstract]. Journal of Nematology. 37:380.   
- APPLICATION OF A BIOSOLID SOIL AMENDMENT, CALCIUM HYDROXIDE, AND STREPTOMYCES SP. FOR MANAGEMENT OF ROOT-KNOT NEMATODE ON CANTALOUPE -(Peer Reviewed Journal)   Meyer, S.L., Zasada, I.A., Tenuta, M., Roberts, D.P. 2005. Application of a biosolid soil amendment, calcium hydroxide, and streptomyces sp. for management of root-knot nematode on cantaloupe. Hortechnology 15(3): 635-641.   
- ACTIVITY OF HYDROXAMIC ACIDS FROM SECALE CEREALE AGAINST THE PLANT-PARASITIC NEMATODES MELOIDOGYNE INCOGNITA AND XIPHINEMA AMERICANUM -(Peer Reviewed Journal)   Zasada, I.A., Meyer, S.L., Halbrendt, J.H., Rice, C. 2005. Activity of hydroxamic acids from secale cereale against the plant-parasitic nematodes meloidogyne incognita and xiphinema americanum. Phytopathology 95:1116-1121.   
- TOWARDS UNDERSTANDING THE CHEMICAL TOXICITY OF RYE (SECALE CEREALE)AGAINST PLANT-PARASITIC NEMATODES -(Abstract Only)   Zasada, I.A., Meyer, S.L., Rice, C. 2005. Towards understanding the chemical toxicity of rye (secale cereale)against plant-parasitic nematodes. American Phytopathological Society Potomac Division Meeting. APS publication no. P-2005-0038-PTA.   
- FACTORS AFFECTING THE SUPPRESSION OF HETERODERA GLYCINES BY N-VIRO SOIL -(Peer Reviewed Journal)   Zasada, I.A. 2005. Factors affecting the suppression of heterodera glycines by n-viro soil. Journal of Nematology 37:220-225.   
- INFLUENCE OF SOIL CHARACTERISTICS ON THE ABILITY OF N-VIRO SOIL TO SUPPRESS MELOIDOGYNE INCOGNITA -(Abstract Only)   Zasada, I.A., Tenuta, M. 2004. Influence of soil characteristics on the ability of n-viro soil to suppress Meloidogyne incognita. J. Nematology 36: 354.   
- FACTORS AFFECTING THE HETERODERA GLYCINES SUPPRESSIVENESS OF N-VIRO SOIL -(Abstract Only)   Zasada, I.A. 2004. Factors affecting the heterodera glycines suppressiveness of n-viro soil. American Phytopathological Society Potomac Division Meeting Abstracts.  APS Publication no. P-2005-0020-PTA.   
- CHEMICAL-MEDIATED TOXICITY OF N-VIRO SOIL TO HETERODERA GLYCINES AND MELOIDOGYNE INCOGNITA -(Peer Reviewed Journal)   Zasada, I.A., Tenuta, M. 2004. Chemical-mediated toxicity of n-viro soil to heterodera glycines and meloidogyne incognita. Journal of Nematology 36:297-302.   
- The Complexity of Implementing Amendment-based Managmement Systems for Plant-parasitic Nematode Suppression -(Abstract Only)   Zasada, I.A., Ferris, H. 2003. The complexity of implementing amendment-based management systems for plant-parasitic nematode suppression [abstract]. Journal of Nematology. 35:373.   
- CHEMICAL-MEDIATED LETHAL EFFECTS OF N-VITRO SOIL AGAINST HETERODERA GLYCINES -(Abstract Only)   Zasada, I.A., Tenuta, M. 2003. Chemical-mediated lethal effects of N-Viro Soil against Heterodera glycines [abstract]. Phytopathology 93, p. S93.   

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