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                    U.S. DEPARTMENT OF AGRICULTURE
 Aerial Application Technology Research: College Station, TX
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ARS Home Plains Area College Station, Texas Southern Plains Agricultural Research Center Aerial Application Technology Research People & Locations







Bradley K Fritz

(Brad)
                        Aerial Application Technology Research

                        




                        
                        Supervisory Agricultural Engineer
                        Phone: (979) 260-9354
                        
                        
                        Fax: (979) 260-5169(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsImproved Aerial Application Technologies for Precise and Effective Delivery of Crop Production Products
                                                    In-House Appropriated
                                                                    (D)Accession Number: 438007**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Practical methods for aerial image acquisition and reflectance conversion using consumer-grade cameras on manned and unmanned aircraft

- (Peer Reviewed Journal)Uncrewed aerial spray systems for mosquito control: Efficacy studies for space sprays
                                                        

- (Peer Reviewed Journal)Bonds, J.A., Thistle, H., Fritz, B.K., Reynolds, W., Kimbell, P. 2023. Uncrewed aerial spray systems for mosquito control: Efficacy studies for space sprays. Journal of the American Mosquito Control Association. 39(4):223-230. https://doi.org/10.2987/23-7140.Straight stream nozzles models to support aerial applications

- (Peer Reviewed Journal)Practical methods for aerial image acquisition and reflectance conversion using consumer cameras
                                                        

- (Proceedings)Yang, C., Fritz, B.K., Suh, C.P. 2023. Practical methods for aerial image acquisition and reflectance conversion using consumer cameras. European Conference on Precision Agriculture Proceedings. pp. 1027-1034. https://doi.org/10.3920/978-90-8686-947-3_129.Calculation of swath width and swath displacement for uncrewed aerial spray systems

- (Peer Reviewed Journal)Bonds, J., Fritz, B.K., Thistle, H. 2023. Calculation of swath width and swath displacement for uncrewed aerial spray systems. Applied Engineering in Agriculture. Vol 66(3):523-532.Herbicide spray drift from ground and aerial applications: Implications for potential pollinator foraging sources
                                                        

- (Peer Reviewed Journal)Butts, T.R., Fritz, B.K., Kouame, B., Norsworthy, J.K., Barber, L.T., Ross, J., Lorenz, G.M., Thrash, B.C., Bateman, N.R., Adamczyk Jr, J.J. 2022. Herbicide spray drift from ground and aerial applications: Implications for potential pollinator foraging sources. Nature Plants. https://doi.org/10.1038/s41598-022-22916-4.The physics of spray droplets released from ag aircraft

- (Popular Publication)Fritz, B.K. 2022. The physics of spray droplets released from ag aircraft. Agricultural Aviation. 49(4):44-49.The physics of spray droplets released from ag aircraft

- (Popular Publication)Fritz, B.K. 2022. The physics of spray droplets released from ag aircraft. Agricultural Aviation. 49(4):44-49.Spray drift potential of dicamba plus S-metolachlor formulations
                                                        

- (Peer Reviewed Journal)Vieira, B., Alves, G., Vukoja, B., Vinicius, V., Zaric, M., Houston, T., Fritz, B.K., Kruger, G. 2022. Spray drift potential of dicamba plus S-metolachlor formulations. Pest Management Science. https://doi.org/doi 10.1002/ps.6772.Standardizing agricultural spray droplet size distributions
                                                        

- (Peer Reviewed Journal)Fritz, B.K., Sun, S., Kruger, G. 2022. Standardizing agricultural spray droplet size distributions. American Society for Testing and Materials. http://doi.org/10.1520/STP164120210077.A field programme for the spray distribution of Unmanned Aerial Spray Systems (UASS) and the development of larvicide systems for vector control

- (Peer Reviewed Journal)Bonds, J., Fritz, B.K., Thistle, H. 2022. A field programme for the spray distribution of Unmanned Aerial Spray Systems (UASS) and the development of larvicide systems for vector control. Aspects of Applied Biology. 147:105-115.Utilization of unmanned aerial systems in mosquito and vector control programs
                                                        

- (Peer Reviewed Journal)Faraji, A., Sorensen, B., Haas-Stapleton, E., Scholl, M., Goodman, B., Buettner, J., Schon, S., Ortiz, E., Hartle, J., Lefkow, N., Lewis, C., Fritz, B.K., Hoffmann, W., Williams, G. 2021. Utilization of unmanned aerial systems in mosquito and vector control programs. Journal of Economic Entomology. 114(5):1896-1909. https://doi.org/10.1093/jee/toab107.Review of agricultural spraying technologies for plant protection using unmanned aerial vehicle (UAV)
                                                        

- (Peer Reviewed Journal)Chen, H., Fritz, B.K., Hoffmann, W.C., Lan, Y., Jingfu, Z. 2021. Review of agricultural spraying technologies for plant protection using unmanned aerial vehicle (UAV) . International Journal of Precision Agricultural Aviation (IJPAA). 14(1):38-49. https://doi.org/10.25165/j.ijabe.20211401.5714.Overview of spray nozzles for plant protection from manned aircrafts: Present research and prospective
                                                        

- (Peer Reviewed Journal)Chen, H., Fritz, B.K., Lan, Y., Sheng, W., Jingfu, Z. 2020. Overview of spray nozzles for plant protection from manned aircrafts: Present research and prospective. International Journal of Precision Agricultural Aviation (IJPAA). 3(2):1-12. https://doi.org/10.33440/j.ijpaa.20200302.76.Measurement and analysis methods for determination of effective swath width from unmanned aerial systems
                                                        

- (Peer Reviewed Journal)Fritz, B.K., Martin, D.E. 2020. Measurement and analysis methods for determination of effective swath width from unmanned aerial vehicles. In: Elsik, C.M., editor. Pesticide Formulation and Delivery Systems: 40th Volume, Formulation, Application and Adjuvant Innovation. West Conshohocken, PA: ASTM International. p. 62-85. https://doi.org/10.1520/STP162720190132.It's time to spray, is your system ready?

- (Popular Publication)Fritz, B.K. 2020. It's time to spray, is your system ready?. Agricultural Aviation. No. 2. pp. 54-57.Particle drift potential of glyphosate plus 2,4 D choline pre-mixture formulation in a low-speed wind tunnel
                                                        

- (Peer Reviewed Journal)Viera, B., Butts, T., Rodrigues, A., Schleier, J., Fritz, B.K., Kruger, G. 2020. Particle drift potential of glyphosate plus 2,4 D choline pre-mixture formulation in a low-speed wind tunnel. Weed Technology. https://doi.org/10.1017/wet.2020.15.How to set up your system to meet the label

- (Popular Publication)Fritz, B.K. 2019. How to set up your system to meet the label. Agricultural Aviation. pp. 53-59.Western corn rootworm pyrethroid resistance confirmed by aerial application simulations of commercial insecticides
                                                        

- (Peer Reviewed Journal)Souza, D., Vieira, B., Fritz, B.K., Hoffmann, W.C., Peterson, J., Kruger, G., Meinke, L. 2019. Western corn rootworm pyrethroid resistance confirmed by aerial application simulations of commercial insecticides. Scientific Reports. https://doi.org/10.1038/s41598-019-43202-w.Examining aerial application swath pattern evaluations under in-wind and cross-wind conditions
                                                        

- (Peer Reviewed Journal)Fritz, B.K., Gill, M., Bretthauer, S. 2019. Examining aerial application swath pattern evaluations under in-wind and cross-wind conditions. Journal of ASTM International. https://doi.org/10.1520/STP161920180123.Modeling aerially applied sprays: An update to AGDISP model development
                                                        

- (Peer Reviewed Journal)Teske, M., Thistle, H., Fritz, B.K. 2019. Modeling aerially applied sprays: An update to AGDISP model development. Transactions of the ASABE. 62(2):343-354. https://doi.org/10.13031/trans.13129.Droplet size impact on efficacy of a dicamba-plus-glyphosate mixture
                                                        

- (Peer Reviewed Journal)Butts, T., Samples, C., Franca, L., Dodds, D., Reynolds, D., Adams, J., Zollinger, R., Howatt, K., Fritz, B.K., Hoffmann, W.C., Luck, J., Kruger, G. 2019. Droplet size impact on efficacy of a dicamba-plus-glyphosate mixture. Weed Technology. 33(1):66-74. https://doi.org/10.1017/wet.2018.118.Evaluation of spray pattern uniformity using three unique analyses as impacted by nozzle, pressure, and pulse-width modulation duty cycle
                                                        

- (Peer Reviewed Journal)Butts, T., Luck, J., Fritz, B.K., Hoffmann, W.C., Kruger, G. 2019. Evaluation of spray pattern uniformity using three unique analyses as impacted by nozzle, pressure, and pulse-width modulation duty cycle. Pest Management Science. 75(7):1875-1886. https://doi.org/10.1002/ps.5352.Establishing reference nozzles for classification of aerial application spray technologies
                                                        

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2018. Establishing reference nozzles for classification of aerial application spray technologies. International Journal of Precision Agricultural Aviation (IJPAA). 1(1):10-14. https://doi.org/10.33440/j.ijpaa.20180101.0003.Optimum droplet size using a pulse-width modulation sprayer for applications of 2,4-D choline plus glyphosate
                                                        

- (Peer Reviewed Journal)Butts, T., Samples, C., Franca, L., Dodds, D., Reynolds, D., Adams, J., Zollinger, R., Howatt, K., Fritz, B.K., Hoffmann, W.C., Luck, J., Kruger, G. 2019. Optimum droplet size using a pulse-width modulation sprayer for applications of 2,4-D choline plus glyphosate. Agronomy Journal. 111(1):1425-1432. https://doi.org/10.2134/agronj2018.07.0463.Using laser diffraction to measure agricultural sprays: Common sources of error when making measurements
                                                        

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K. 2018. Using laser diffraction to measure agricultural sprays: Common sources of error when making measurements. International Journal of Precision Agricultural Aviation (IJPAA). 1(1):15-18. https://doi.org/10.33440/j.ijpaa.20180101.0005.Droplet size and nozzle tip pressure from a pulse width modulation sprayer
                                                        

- (Peer Reviewed Journal)Butts, T., Butts, L., Luck, J., Fritz, B.K., Hoffmann, W.C., Kruger, G. 2018. Droplet size and nozzle tip pressure from a pulse width modulation sprayer. Biosystems Engineering. 178:52-69. https://doi.org/10.1016/j.biosystemseng.2018.11.004.Nonlinear derivation of spread factor due to viscous energy losses
                                                        

- (Peer Reviewed Journal)Wilde, S.C., Hoffmann, W.C., Fritz, B.K. 2018. Nonlinear derivation of spread factor due to viscous energy losses. Journal of ASTM International. 1610:53-60. https://doi.org/10.1520/STP161020170241.Spray droplet size and carrier volume effect on dicamba and glufosinate efficacy
                                                        

- (Peer Reviewed Journal)Butts, T., Samples, C., Franca, L., Dodds, D., Reynolds, D., Adams, J., Zollinger, R., Howatt, K., Fritz, B.K., Hoffmann, W.C., Luck, J., Kruger, G. 2018. Spray droplet size and carrier volume effect on dicamba and glufosinate efficacy. Pest Management Science. 74(9):2020-2029. https://doi.org/10.1002/ps.4913.Determining water sensitive card spread factors for real world tank mixes
                                                        

- (Peer Reviewed Journal)sHoffmann, W.C., Fritz, B.K., Gizotti-De-Moraes, J., Guerreiro De Jesus, M., Kruger, G. 2018. Determining water sensitive card spread factors for real world tank mixes. Journal of ASTM International. https://doi.org/10.1520/STP160220160019.Mass balance and swath displacement evaluations from agricultural application field trials
                                                        

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Martin, D.E. 2018. Mass balance and swath displacement evaluations from agricultural application field trials. Journal of ASTM International. 1610:11-23. https://doi.org/10.1520/STP161020170204.The impact of spray adjuvants on solution physical properties and spray droplet size

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Gizotti-De-Moraes, J., Guerrerio, M., Golus, J., Kruger, G. 2018. The impact of spray adjuvants on solution physical properties and spray droplet size. Journal of ASTM International. 37:22-32.Updating the USDA ARS rotary wing nozzle models

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2017. Updating the USDA ARS rotary wing nozzle models. Applied Engineering in Agriculture. 33(5):631-640.Current status and future trends of precision agricultural aviation
technologies

- (Peer Reviewed Journal)Lan, Y., Chen, S., Fritz, B.K. 2017. Current status and future trends of precision agricultural aviation technologies. International Journal of Agricultural and Biological Engineering. 10(3):1-17.Limited impacts of truck-based ultra-low volume applications of mosquito adulticides on mortality in honey bees (Apis mellifera)
                                                        

- (Peer Reviewed Journal)Rinkevich Jr, F.D., Margotta, J.W., Pohkrel, V., Ottea, J.A., Healy, K.B., Walker, T.W., Vaeth, R.H., Aldridge, R.L., Fritz, B.K., Danka, R.G., Rinderer, T.E., Hoffmann, W.C., Linthicum, K. 2017. Limited impacts of truck-based ultra-low volume applications of mosquito adulticides on mortality in honey bees (Apis mellifera). Bulletin of Entomological Research. 107(6):724-733. https://doi.org/10.1017/S0007485317000347.Atmospheric stability intervals influencing the potential for off-target movement of spray in aerial application

- (Peer Reviewed Journal)Thomson, S.J., Huang, Y., Fritz, B.K. 2017. Atmospheric stability intervals influencing the potential for off-target movement of spray in aerial application. International Journal of Agricultural Science and Technology. 5(1):1-17.The synergistic effects of almond protection fungicides on honey bee (Apis mellifera) forager survival

- (Peer Reviewed Journal)Fisher, A., Coleman, C., Hoffmann, W.C., Fritz, B.K., Rangel, J. 2017. The synergistic effects of almond protection fungicides on honey bee (Apis mellifera) forager survival. Journal of Economic Entomology. 110(3):802-808.Aerially released spray penetration of a tall coniferous canopy

- (Peer Reviewed Journal)Thistle, H., Reardon, R., Bonds, J., Fritz, B.K., Hoffmann, W.C., Kees, G., Grob, I., Hewitt, A., O'Donnell, C., Onken, B. 2016. Aerially released spray penetration of a tall coniferous canopy. Transactions of the ASABE. 59(5):1221-1231.Evaluation of spray drift from backpack and UTV spraying

- (Peer Reviewed Journal)Thistle, H.W., Bonds, J.S., Kees, G.J., Fritz, B.K. 2017. Evaluation of spray drift from backpack and UTV spraying. Transactions of the ASABE. 60(1):41-50.The influence of nozzle type, operating pressure, and tank-mixture components on droplet characteristics and the EPA's drift reduction rating

- (Peer Reviewed Journal)Henry, R., Fritz, B.K., Hoffmann, W.C., Kruger, G. 2016. The influence of nozzle type, operating pressure, and tank-mixture components on droplet characteristics and the EPA's drift reduction rating. Journal of ASTM International. doi:10.1520/STP159520150098.Model based decision support system for agrochemical applications for MMAT nozzles

- (Peer Reviewed Journal)Fritz, B.K., Czaczyk, Z., Hoffmann, W.C. 2016. Model based decision support system for agrochemical applications for MMAT nozzles. Journal of Plant Protection Research. 56(2):178-185.The effect of adjuvants at high spray pressures for aerial applications

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Henry, R. 2016. The effect of adjuvants at high spray pressures for aerial applications. American Society for Testing and Materials. doi:10.1520/STP159520150086.Measuring spray droplet size from agricultural nozzles using laser diffraction
                                                        

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2016. Measuring spray droplet size from agricultural nozzles using laser diffraction. Journal of Visualized Experiments. doi:10.3791/54533.Evaluation of spray droplet spectrum of sprayers used for vector control

- (Peer Reviewed Journal)Farooq, M., Hoffmann, W.C., Fritz, B.K., Cote, N., Walker, T., Smith, V. 2016. Evaluation of spray droplet spectrum of sprayers used for vector control. Atomization and Sprays. 26(8):739-754.A practical interpretation and use of the USDA aerial fixed-wing nozzle models

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bretthauer, S. 2016. A practical interpretation and use of the USDA aerial fixed-wing nozzle models. Applied Engineering in Agriculture. 32(1):29-35.Effects of spray adjuvants on spray droplet size from a rotary atomizer
                                                        

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Yang, C. 2016. Effects of spray adjuvants on spray droplet size from a rotary atomizer. American Society for Testing and Materials. 35:52-60. doi:10.1520/STP1587201400992.Assessing the fate of an aromatic hydrocarbon fluid in agricultural spray applications using the three-stage ADVOCATE model framework

- (Peer Reviewed Journal)Toose, L., Warren, C., Mackay, D., Pinkerton, T., Letinski, D., Manning, R., Connelly, M., Rohde, A., Fritz, B.K., Hoffmann, W.C. 2015. Assessing the fate of an aromatic hydrocarbon fluid in agricultural spray applications using the three-stage ADVOCATE model framework. Journal of Agricultural and Food Chemistry. 63(31):6866-6875.Response surface method for evaluation of the performance of agricultural application spray nozzles

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Anderson, J. 2016. Response surface method for evaluation of the performance of agricultural application spray nozzles. Pesticide Formulation and Delivery Systems: 35th Volume, American Society for Testing and Materials STP1587, G.R. Goss, ed., ASTM International, West Conshohocken, PA. pp. 61-76. doi:10.1520/STP158720140100.Influence of herbicide active ingredient, nozzle type, orifice size, spray pressure, and carrier volume rate on spray droplet size characteristics

- (Peer Reviewed Journal)Creech, C., Henry, R., Fritz, B.K., Kruger, G. 2015. Influence of herbicide active ingredient, nozzle type, orifice size, spray pressure, and carrier volume rate on spray droplet size characteristics. Weed Technology. 29(2):298-310.Spray drift reduction test method correlation
                                                        

- (Peer Reviewed Journal)Elsik, C., Fritz, B.K. 2015. Spray drift reduction test method correlation. Journal of ASTM International. doi:10.1520/STP157920130171.Update to the USDA-ARS fixed-wing spray nozzle models

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2015. Update to the USDA-ARS fixed-wing spray nozzle models. Transactions of the ASABE. 58(2):281-295.Development of a low-volume sprayer for an unmanned autonomous helicopter

- (Peer Reviewed Journal)Huang, Y., Hoffmann, W.C., Lan, Y., Fritz, B.K., Thomson, S.J. 2014. Development of a low-volume sprayer for an unmanned autonomous helicopter. Journal of Agricultural Science. 7(1):148-153.The biological effect of cage design corrected for reductions in spray penetration

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bonds, J., Haas, K., Zbigniew, C. 2014. The biological effect of cage design corrected for reductions in spray penetration. Journal of Plant Protection Research. 54(4):395-400.An airborne multispectral imaging system based on two consumer-grade cameras for agricultural remote sensing

- (Peer Reviewed Journal)Yang, C., Westbrook, J.K., Suh, C.P., Martin, D.E., Hoffmann, W.C., Lan, Y., Fritz, B.K., Goolsby, J. 2014. An airborne multispectral imaging system based on two consumer-grade cameras for agricultural remote sensing. Remote Sensing. 6:5257-5278.Measuring droplet size of agriuclutral spray nozzles - Measurement distance and airspeed effects

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bagley, W.E., Kruger, G., Czaczyk, Z., Henry, R. 2014. Measuring droplet size of agriuclutral spray nozzles - Measurement distance and airspeed effects. Atomization and Sprays. 24(9):747-760.Measuring the effect of spray plume angle on the accuracy of droplet size data

- (Peer Reviewed Journal)Henry, R., Kruger, G., Fritz, B.K., Hoffmann, W.C., Bagley, B., Czazyck, Z. 2014. Measuring the effect of spray plume angle on the accuracy of droplet size data. In: Sesa, C., editor. Pesticide Formulation and Delivery Systems: 33rd Volume, "Sustainability: Contributions from Formulation Technology." West Conshohocken, PA: ASTM International. p. 129-138. DOI: 10.1520/STP1569-EB.Evaluation of 1, 3, 6, 8-Pyrene Tetra Sulfonic Acid tetra sodium salt (PTSA) as an agricultural spray tracer dye

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Ledebuhr, M. 2014. Evaluation of 1, 3, 6, 8-pyrene tetra sulfonic acid tetra sodium salt (PTSA) as an agricultural spray tracer dye. Applied Engineering in Agriculture. 30(1):25-28.Effects of nozzle spray angle on droplet size and velocity

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Bagley, W.E., Kruger, G., Henry, R., Czaczyk, Z. 2014. Effects of nozzle spray angle on droplet size and velocity. In: Sesa, C., editor. Pesticide Formulation and Delivery Systems: 33rd Volume, Sustainability: Contributions from Formulation Technology, STP 1569. ASTM International: West Conshohocken, PA. p. 151-173. doi: 10.1520/STP156920120131.Inflence of air shear and adjuvants on spray atomization

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bagley, W.E., Kruger, G., Czaczyk, Z., Henry, R. 2014. Inflence of air shear and adjuvants on spray atomization. In: Sesa, C., editor. Pesticide Formulation and Delivery Systems: 33rd Volume, Sustainability: Contributions from Formulation Technology, STP 1569. ASTM International: West Conshohocken, PA. p. 139-150. doi: 10.1520/STP156920120131.Comparison of drop size data from ground and aerial application nozzles at three testing laboratories

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Kruger, G., Henry, R., Hewitt, A., Czaczyk, Z. 2014. Comparison of drop size data from ground and aerial application nozzles at three testing laboratories. Atomization and Sprays. 24(2):181-192.Development and prospect of unmanned aerial vehicles for agricultural production management

- (Peer Reviewed Journal)Huang, Y., Thomson, S.J., Hoffman, W.C., Lan, Y., Fritz, B.K. 2013. Development and prospect of unmanned aerial vehicles for agricultural production management. International Journal of Agricultural and Biological Engineering. 6(3):1-10.Remote sensing and aerial application

- (Popular Publication)Yang, C., Hoffmann, W.C., Fritz, B.K. 2013. Remote sensing and aerial application. Agricultural Aviation. 40(5):23-25.A two-camera imaging system for pest detection and aerial application

- (Abstract Only)Yang, C., Hoffmann, W.C., Martin, D.E., Lan, Y., Fritz, B.K., Westbrook, J.K., Suh, C.P. 2013. A two-camera imaging system for pest detection and aerial application. ASABE Annual International Meeting. Paper No. 131598742.Evaluation of aerial spray technologies for adult mosquito control applications

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Farooq, M., Walker, T., Hornsby, J., Bond, J. 2013. Evaluation of aerial spray technologies for adult mosquito control applications. Journal of Plant Protection Research. 53:222-29.Atomization from agricultural spray nozzles: Effects of air shear and tank mix adjuvants

- (Proceedings)Fritz, B.K., Hoffmann, W.C., Bagley, W.E., Kruger, G. 2013. Atomization from agricultural spray nozzles: Effects of air shear and tank mix adjuvants. Proceedings of the 10th Annual International Symposium on Adjuvants for Agrochemicals. April 22-26, 2013. Foz de Iguacu, Brazil.Measurement and classification methods using the ASAE S572-1 reference nozzles

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Czaczyk, Z., Bagley, W., Kruger, G., Henry, R. 2012. Measurement and classification methods using the ASAE S572-1 reference nozzles. Journal of Plant Protection Research. 52:447-457.Correction of spray concentration and bioassay cage penetration data

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bonds, J., Haas, K. 2012. Correction of spray concentration and bioassay cage penetration data. American Mosquito Control Association. 28(40):320-322.Effect of spinosad and sucrose mixtures on gustatory response and mortality of adult boll weevils (Coleoptera: Curculionidae) by feeding and field assessment

- (Peer Reviewed Journal)Lopez, J., Latheef, M.A., Fritz, B.K. 2012. Effect of spinosad and sucrose mixtures on gustatory response and mortality of adult boll weevils (Coleoptera: Curculionidae) by feeding and field assessment. Journal of Cotton Science. 16(3):152-159.Determination of selection criteria for spray drift reduction from atomization data

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Bagley, W., Gednalske, J., Elsik, C., Kruger, G. 2012. Determination of selection criteria for spray drift reduction from atomization data. ASTM Special Technical Publication 1558 STP. p. 65-79.Effect of formulated glyphosate and adjuvant tank mixes on atomization from aerial application flat fan nozzles

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bagley, W.E. 2012. Effect of formulated glyphosate and adjuvant tank mixes on atomization from aerial application flat fan nozzles. Journal of ASTM International. doi 10.1520/STP104451.Wind tunnel and field evaluation of drift from aerial spray applications with multiple spray formulations

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bretthauer, S., Wolf, R.E., Bagley, W.E. 2012. Wind tunnel and field evaluation of drift from aerial spray applications with multiple spray formulations. Journal of ASTM International. doi 10-1520/STP104403.Further evaluation of spray characterization of sprayers typically used in vector control

- (Peer Reviewed Journal)Hoffmann, W.C., Walker, T.W., Fritz, B.K., Farooq, M., Smith, V.L., Robinson, C.A., Lan, Y. 2012. Further evaluation of spray characterization of sprayers typically used in vector control. Journal of the American Mosquito Control Association. 28(2):93-101.Aerial ULV application of permethrin against adult mosquitoes over open field and medium density canopy habitat in a hot-temperate zone

- (Abstract Only)Britch, S.C., Linthicum, K., Aldridge, R.L., Walker, T.W., Farooq, M., Fritz, B.K., Hoffmann, W.C., Parker, C.T., Breidenbaugh, M.S., Kerce, J. 2012. Aerial ULV application of permethrin against adult mosquitoes over open field and medium density canopy habitat in a hot-temperate zone. Meeting Abstract. p.39.Optimizing selection of controllable variables to minimize downwind drift from aerially applied sprays

- (Peer Reviewed Journal)Huang, Y., Zhan, W., Fritz, B.K., Thomson, S.J. 2012. Optimizing selection of controllable variables to minimize downwind drift from aerially applied sprays. Applied Engineering in Agriculture. 28(3):307-314.Expansion of the USDA ARS Aerial Application spray atomization models

- (Proceedings)Fritz, B.K., Hoffmann, W.C., Martin, D.E., Lan, Y. 2011. Expansion of the USDA ARS Aerial Application spray atomization models. Proceedings Annual Conference on Liquid Atomization and Spray Systems. Estoril, Portugal, September 5-7, 2011. p. 1-7.Temporal indications of atmospheric stability affecting off-target spray drift in the midsouth U S

- (Proceedings)Thomson, S.J., Huang, Y., Fritz, B.K. 2011. Temporal indications of atmospheric stability affecting off-target spray drift in the midsouth U S. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). pp. 8.Field scale evaluation of spray drift reduction technologies from ground and aerial application systems

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bagley, W.E., Hewitt, A. 2011. Field scale evaluation of spray drift reduction technologies from ground and aerial application systems. Journal of ASTM International. 8(5):JAI103457.Air and spray mixture temperature effects on atomization of agricultural sprays

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Martin, D.E. 2011. Air and spray mixture temperature effects on atomization of agricultural sprays. Agricultural Engineering International: CIGR Journal. 13(1):Manuscript 1730.Effects of air speed and liquid temperature on droplet size

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Bagley, W.E., Lan, Y. 2011. Effects of air speed and liquid temperature on droplet size. Journal of ASTM International. 8(4):JAI103461.A fluorescent tracer method for evaluating spray transport and fate of field and laboratory spray applications

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Jank, P.C. 2011. A fluorescent tracer method for evaluating spray transport and fate of field and laboratory spray applications. Journal of ASTM International. 8(3):JAI103619.Volumetric Collection Efficiency and Droplet Sizing Accuracy of Rotary Impactors

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Bonds, J.A., Farooq, M. 2011. Volumetric collection efficiency and droplet sizing accuracy of rotary impactors. Transactions of the ASABE. 54:57-63.Impact of electrostatic and conventional sprayers characteristics on dispersion of barrier spray

- (Peer Reviewed Journal)Farooq, M., Walker, T.W., Heintschel, B.P., Hoffmann, W.C., Fritz, B.K., Smith, V.L., Robinson, C.A., English, T. 2010. Impact of electrostatic and conventional sprayers characteristics on dispersion of barrier spray. Journal of the American Mosquito Control Association. 26:422-429.Filtration effects due to bioassay cage design and screen type

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Farooq, M., Walker, T., Bonds, J. 2010. Filtration effects due to bioassay cage design and screen type. Journal of the American Mosquito Control Association. 26:411-421.Development of a PWM precision spraying controller for unmanned aerial vehicles

- (Peer Reviewed Journal)Zhu, H., Lan, Y., Wu, W., Hoffmann, W.C., Huang, Y., Xue, X., Liang, J., Fritz, B.K. 2010. Development of a PWM precision spraying controller for unmanned aerial vehicles. Journal of Bionics. 7:276-283.Spray drift reduction evaluations of spray nozzles using a standardized testing protocol

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Thornburg, J.W., Bagley, W.E., Birchfield, N.B., Ellenberger, J. 2010. Spray drift reduction evaluations of spray nozzles using a standardized testing protocol. Journal of ASTM International. 7(6):JAI102820.Novaluron as an ovicide for bollworm on cotton: Deposition and efficacy of field-scale aerial applications

- (Peer Reviewed Journal)Martin, D.E., Lopez, J., Lan, Y., Fritz, B.K., Hoffmann, W.C., Duke, S.E. 2010. Novaluron as an ovicide for bollworm on cotton: Deposition and efficacy of field-scale aerial applications. Journal of Cotton Science. 14:99-106.Simulating and characterizing agricultural ground applications for soil VOC deposition studies

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Rohde, A., Warren, C., Faulkner, W. 2010. Simulating and characterizing agricultural ground applications for soil VOC deposition studies. Journal of ASTM International. 7(7):Paper ID JAI102776.Ground-based spectral reflectance measurements for evaluating the efficacy of aerially-applied glyphosate treatments

- (Peer Reviewed Journal)Zhang, H., Lan, Y., Lacey, R., Hoffmann, W.C., Martin, D.E., Fritz, B.K., Lopez, J. 2010. Ground-based spectral reflectance measurements for evaluating the efficacy of aerially-applied glyphosate treatments. Biosystems Engineering. 107:10-15.Analysis of Impact of Various Factors on Downwind Deposition Using a Simulation Method

- (Peer Reviewed Journal)Huang, Y., Zhan, W., Fritz, B.K., Thomson, S.J., Fang, A. 2010. Analysis of Impact of Various Factors on Downwind Deposition Using a Simulation Method. American Society for Testing and Materials 7(6):1-10.Evaluation of spray drift using low speed wind tunnel measurements and dispersion modeling

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Birchfield, N., Ellenberger, J., Kahn, F., Bagley, W.E., Thornburg, J.W., Hewitt, A. 2010. Evaluation of spray drift using low speed wind tunnel measurements and dispersion modeling. Journal of ASTM International. 7(6):JAI102775.Development of Unmanned Aerial Vehicles for Site-Specific Crop Production Management

- (Proceedings)Huang, Y., Hoffmann, W.C., Lan, Y., Thomson, S.J., Fritz, B.K. 2010. Development of Unmanned Aerial Vehicles for Site-Specific Crop Production Management. Proceedings of 10th International Conference on Precision Agriculture, July 18-21, 2010, Denver, CO. CDROM.Evaluation of low-volume sprayers used in asian citrus Psyllid control applications

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Martin, D.E., Atwood, R., Hurner, T., Ledebuhr, M., Tandy, M., Jackson, J., Wisler, G.C. 2010. Evaluation of low-volume sprayers used in asian citrus Psyllid control applications. HortTechnology. 20:632-639.Quantifying the movement of multiple insects using an optical insect counter

- (Peer Reviewed Journal)Hoffmann, W.C., Jank, P.C., Klun, J.A., Fritz, B.K. 2010. Quantifying the movement of multiple insects using an optical insect counter. Journal of the American Mosquito Control Association. 26:167-171.Low-volume sprayer rodeos

- (Popular Publication)Hoffmann, W.C., Fritz, B.K., Martin, D.E. 2009. Low-volume sprayer rodeos. Florida Grower. p. 12-13.Ground-based spectral reflectance measurements for efficacy evaluation of aerially applied glyphosate treatments

- (Proceedings)Zhang, H., Lan, Y., Lacey, R., Hoffmann, W.C., Martin, D.E., Fritz, B.K., Lopez, J. 2009. Ground-based spectral reflectance measurements for efficacy evaluation of aerially applied glyphosate treatments. National Agricultural Aviation Association Meeting. Paper No. AA09-004.An overview of spray drift reduction testing of spray nozzles

- (Proceedings)Fritz, B.K., Hoffmann, W.C., Thornburg, J.W., Bagley, W.E., Birchfield, N., Ellenberger, J. 2009. An overview of spray drift reduction testing of spray nozzles. National Agricultural Aviation Association Meeting. Paper No. AA09-002.Analysis of Impact of Various Factors on Downwind Deposition Using a Simulation Method

- (Proceedings)Huang, Y., Zhan, W., Fritz, B.K., Thomson, S.J., Fang, A. 2009. Analysis of Impact of Various Factors on Downwind Deposition Using a Simulation Method. Proceedings of the 30th Symposium on Pesticide Formulations and Delivery Systems, American Society for Testing and Materials. October 20-22, 2009, Atlanta, GA.Aerosol sampling: Comparison of two rotating impactors for field droplet sizing and volumetric measurements

- (Peer Reviewed Journal)Barber, J., Greer, M., Fritz, B.K., Hoffmann, W.C. 2009. Aerosol sampling: Comparison of two rotating impactors for field droplet sizing and volumetric measurements. Journal of the American Mosquito Control Association. 25:474-479.Effects of spray mixtures on droplet size under aerial application conditions and implications on drift

- (Peer Reviewed Journal)Fritz, B.K., Bagley, B., Hoffmann, W.C. 2010. Effects of spray mixtures on droplet size under aerial application conditions and implications on drift. Applied Engineering in Agriculture. 26:21-29.Development of a Spray System for An Unmanned Aerial Vehicle Platform

- (Peer Reviewed Journal)Huang, Y., Hoffmann, W.C., Lan, Y., Wu, W., Fritz, B.K. 2009. Development of a Spray System for An Unmanned Aerial Vehicle Platform. Applied Engineering in Agriculture. 25(6):803-809.Aerial spray deposition on corn silks applied at high and low spray rates

- (Peer Reviewed Journal)Fritz, B.K., Lopez, J., Latheef, M.A., Martin, D.E., Hoffmann, W.C., Lan, Y. 2009. Aerial spray deposition on corn silks applied at high and low spray rates. International Agricultural Engineering Journal. 11:Manuscript 1360.Spray characterization of ULV sprayers typically used in vector control

- (Peer Reviewed Journal)Hoffmann, W.C., Walker, T., Fritz, B.K., Farooq, M., Smith, V., Robinson, C., Szumlas, D., Lan, Y. 2009. Spray characterization of ULV sprayers typically used in vector control. Journal of the American Mosquito Control Association. 25:332-337.Canopy penetration and deposition of barrier sprays from electrostatic and conventional sprayers

- (Peer Reviewed Journal)Hoffmann, W.C., Farooq, M., Walker, T.W., Fritz, B.K., Szumlas, D., Bernier, U.R., Hogsette Jr., J.A., Lan, Y., Huang, Y., Quinn, B.P., Smith, V.L., Robinson, C.A. 2009. Canopy penetration and deposition of barrier sprays from electrostatic and conventional sprayers. Journal of the American Mosquito Control Association. 25:323-331.Wind-tunnel tests and modeling indicate that aerial dispersant delivery operations are highly accurate

- (Book / Chapter)Hoffmann, W.C., Nedwed, T., Coolbaugh, T., Huber, C.A., Fritz, B.K. 2009. Wind-tunnel tests and modeling indicate that aerial dispersant delivery operations are highly accurate. In: Jones, N., editor. Proceedings of the Thirty-second AMOP Technical Seminar on Environmental Contamination and Response. Ottawa, Ontario, Canada: Environment Canada. p. 365-382.Development and testing of a laboratory spray table methodology to bioassay simulated levels of aerial spray drift

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Parker, C.T., Lopez, J. 2009. Development and testing of a laboratory spray table methodology to bioassay aerial spray drift. Journal of ASTM International. 6(6):Paper ID JAI102125.Evaluation of the EPA Drift Reduction Technology (DRT) low-speed wind tunnel protocol

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Lan, Y. 2009. Evaluation of the EPA Drift Reduction Technology (DRT) low-speed wind tunnel protocol. Journal of ASTM International. 6:doi:10.1520/SAI102129.Evaluation of a proposed drift reduction technology high-speed wind tunnel testing protocol

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Lan, Y. 2009. Evaluation of a proposed drift reduction technology high-speed wind tunnel testing protocol. Journal of ASTM International. 6:doi:10.1520/JAI102122.Deposition and droplet sizing characterization of a laboratory spray table

- (Peer Reviewed Journal)Fritz, B.K., Parker, C.T., Lopez, J., Hoffmann, W.C., Schleider, P.G. 2008. Deposition and droplet sizing characterization of a laboratory spray table. Applied Engineering in Agriculture. 25:175-180.Spray characteristics affected by physical properties of adjuvants

- (Proceedings)Lan, Y., Fritz, B.K., Hoffmann, W.C., Bagley, W.E., Huang, Y., Martin, D.E., Lopez, J. 2008. Spray characteristics affected by physical properties of adjuvants. National Agricultural Aviation Association Meeting. Paper No. AA-08-005.Deposition of insecticides on corn silks applied at high and low spray rates for control of corn earworm

- (Proceedings)Fritz, B.K., Lopez, J., Latheef, M.A., Martin, D.E., Hoffmann, W.C., Lan, Y. 2008. Deposition of insecticides on corn silks applied at high and low spray rates for control of corn earworm. National Agricultural Aviation Association Meeting. Paper No. AA08-004.Spray spectrum modifications through changes in airspeed to minimize drift

- (Proceedings)Fritz, B.K., Bagley, B., Hoffmann, W.C., Lan, Y. 2009. Spray spectrum modifications through changes in airspeed to minimize drift. National Agricultural Aviation Association Meeting. Paper No. AA08-002.Spray characterization of thermal fogging equipment typically used in vector control

- (Peer Reviewed Journal)Hoffmann, W.C., Walker, T.W., Fritz, B.K., Gwinn, T., Smith, V.L., Szumlas, D., Lan, Y., Huang, Y., Sykes, D., Quinn, B.P. 2008. Spray characterization of thermal fogging equipment typically used in vector control. Journal of the American Mosquito Control Association. 24:550-559.Effects of System Pressure and Nozzle Type on Spray Application of Avian Vaccines

- (Peer Reviewed Journal)Purswell, J.L., Fritz, B.K., Branton, S.L., Leigh, S.A.  2008.  Effects of System Pressure and Nozzle Type on Spray Application of Avian Vaccines. Applied Engineering in Agriculture 24(6):785-789.Effect of adjuvant physical properties on spray characteristics

- (Abstract Only)Lan, Y., Fritz, B.K., Hoffmann, W.C., Huang, Y. 2008. Effect of adjuvant physical properties on spray characteristics. ASABE Annual International Meeting. Paper No. 08-4174.Evaluation of toxicity of selected insecticides against thrips on cotton in laboratory bioassays

- (Peer Reviewed Journal)Lopez, J., Fritz, B.K., Latheef, M.A., Lan, Y., Martin, D.E., Hoffmann, W.C. 2008. Evaluation of toxicity of selected insecticides against thrips on cotton in laboratory bioassays. Journal of Cotton Science. 12:188-194.Atmospheric effects on the fate of aerially applied agricultural sprays

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2008. Atmospheric effects on the fate of aerially applied agricultural sprays. International Agricultural Engineering Journal. X:08008.Development of an airborne remote sensing system for aerial applicators

- (Proceedings)Lan, Y., Huang, Y., Martin, D.E., Hoffmann, W.C., Fritz, B.K., Lopez, J. 2008. Development of an airborne remote sensing system for aerial applicators. Proceedings of the Annual Precision Ag Conference, July 20-23, 2008, Denver, CO. p. 5-25.Low-level atmospheric temperature inversions: Characteristics and impacts on agricultural applications

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Lan, Y., Thomson, S.J., Huang, Y. 2008. Low-level atmospheric temperature inversions: Characteristics and impacts on agricultural applications. International Agricultural Engineering Journal. X:PM-08001.Development of an unmanned aerial vehicle-based remote sensing system for site-specific management in precision agriculture

- (Proceedings)Huang, Y., Lan, Y., Hoffmann, W.C., Fritz, B.K. 2008. Development of an unmanned aerial vehicle-based remote sensing system for site-specific management in precision agriculture. Proceedings of the 9th International Symposium on Precision Agriculture, Denver, CO.Adult vial bioassays of insecticidal toxicity against cotton fleahopper, Pseudatomoscelis seriatus (Reuter) (Hemiptera: Miridae)

- (Peer Reviewed Journal)Lopez, J., Hoffmann, W.C., Latheef, M.A., Fritz, B.K., Martin, D.E., Lan, Y. 2008. Adult vial bioassays of insecticidal toxicity against cotton fleahopper, Pseudatomoscelis seriatus (Reuter) (Hemiptera: Miridae). Journal of Pesticide Science. 33:261-265.Laboratory evaluation of Novaluron for toxicity to nymphal instars of field collected southern green stink bug on cotton

- (Peer Reviewed Journal)Lopez, J., Lan, Y., Latheef, M.A., Hoffmann, W.C., Fritz, B.K., Martin, D.E. 2008. Laboratory evaluation of novaluron for toxicity to nymphal instars of field collected southern green stink bug on cotton. Southwestern Entomologist. 33:119-127.Spray adjuvant effects on droplet size spectra measured by three laser-based systems

- (Peer Reviewed Journal)Hoffmann, W.C., Hewitt, A.J., Ross, J.B., Bagley, W.E., Martin, D.E., Fritz, B.K. 2008. Spray adjuvant effects on droplet size spectra measured by three laser-based systems. Journal of ASTM International. 5(6):Paper ID JAI101233.Development of an unmanned aerial vehicle-based spray system for highly accurate site-specific application

- (Proceedings)Huang, Y., Hoffmann, W.C., Fritz, B.K., Lan, Y. 2008. Development of an unmanned aerial vehicle-based spray system for highly accurate site-specific application. Proceedings of the ASABE Annual International Meeting, St. Joseph, MO. Paper No. 08-3909.Drift reduction with drift control adjuvants

- (Proceedings)Lan, Y., Hoffmann, W.C., Fritz, B.K., Martin, D.E., Lopez, J. 2008. Drift reduction with drift control adjuvants. ASABE Annual International Meeting. Paper No. 07-1060.Effects of water hardness on spray droplet size under aerial application conditions

- (Peer Reviewed Journal)Hoffmann, W.C., Bagley, W.E., Fritz, B.K., Lan, Y., Martin, D.E. 2008. Effects of water hardness on spray droplet size under aerial application conditions. Applied Engineering in Agriculture. 24(1):11-14.Development of a system for determining collection efficiency of spray samplers

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2008. Development of a system for determining collection efficiency of spray samplers. Applied Engineering in Agriculture. 24:285-293.Meteorological influences on mass accountability of aerially applied sprays

- (Proceedings)Fritz, B.K., Hoffmann, W.C. Meteorological influences on mass accountability of aerially applied sprays. Proceedings of the American Society of Agricultural and Biological Engineers International (ASABE). December 10, 2007, Reno, NV. Paper No. AA07-003.Collection efficiency of various airborne spray flux samplers used in aerial application research

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C. 2008. Collection efficiency of various airborne spray flux samplers used in aerial application research. Journal of ASTM International. 5(1):Paper ID JAI01493.Aerial application methods for increasing spray deposition on wheat heads

- (Peer Reviewed Journal)Fritz, B.K., Hoffmann, W.C., Martin, D.E., Thomson, S.J. 2007. Aerial application methods for increasing spray deposition on wheat heads. Applied Engineering in Agriculture. 23(6):709-715.Field evaluation of spinosad aerial applications for thrips control on cotton

- (Peer Reviewed Journal)Martin, D.E., Lopez, J., Hoffmann, W.C., Fritz, B.K., Lan, Y. 2007. Field evaluation of spinosad aerial applications for thrips control on cotton. Southwestern Entomologist. 32(4):221-228.Drift reduction with drift control adjuvants

- (Abstract Only)Lan, Y., Hoffmann, W.C., Fritz, B.K., Martin, D.E., Lopez, J. 2007. Drift reduction with drift control adjuvants. ASABE Annual International Meeting. Paper No. 07-1060.Asynoptic high resolution upper-air data for high impact weather events.

- (Proceedings)Zeitler, J.W., Witsaman, P., Foster, S., Hoffmann, W.C., Fritz, B.K. 2007. Asynoptic high resolution upper-air data for high impact weather events. Proceedings of the American Meteorological Society Conference on Weather Analysis and Forecasting, Park City, UT, June 25, 2007. Poster No. 1.48.Asynoptic high resolution upper-air data for high impact weather events

- (Abstract Only)Zeitler, J.W., Witsaman, P., Foster, S., Hoffmann, W.C., Fritz, B.K. 2007. Asynoptic high resolution upper-air data for high impact weather events [abstract]. In: Proceedings of the American Meteorological Society Conference on Weather Analysis and Forecasting. Conference on Weather Analysis and Forecasting, June 25, 2007, Park City, Utah. Poster No. 1.48.Characterization of Truck Mounted Atomization Equipment Typically Used in Vector Control

- (Peer Reviewed Journal)Hoffmann, W.C., Walker, T.W., Martin, D.E., Barber, J.A.B., Gwinn, T., Smith, V.L., Szumlas, D., Lan, Y., Fritz, B.K. 2007. Characterization of truck-mounted atomization equipment typically used in vector control. Journal of the American Mosquito Control Association. 23(3):321-329.Spray drift mitigation with spray mix adjuvants

- (Peer Reviewed Journal)Lan, Y., Hoffmann, W.C., Fritz, B.K., Martin, D.E., Lopez, J. 2008. Spray drift mitigation with spray mix adjuvants. Applied Engineering in Agriculture. 24(1):5-10.Effects of Wind Speed on Aerosol Spray Penetration in Adult Mosquito Bioassay Cages

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Farooq, M., Cooperband, M.F. 2008. Effects of wind speed on aerosol spray penetration in adult mosquito bioassay cages. Journal of the American Mosquito Control Association. 24:419-426.Droplet size characterization of hand-held atomization equipment typically used in vector control

- (Peer Reviewed Journal)Hoffmann, W.C., Walker, T.W., Smith, V.L., Martin, D.E., Fritz, B.K. 2007. Droplet-size characterization of handheld atomization equipment typically used in vector control. Journal of the American Mosquito Control Association. 23(3):315-320.AGDISP Sensitivity to Crop Canopy Characterization

- (Peer Reviewed Journal)Hoffmann, W.C., Fritz, B.K., Martin, D.E. 2007. AGDISP sensitivity to crop canopy characterization. Transactions of the ASABE. 50:1117-1122.Effectiveness of spray adjuvants on reduction of spray drift

- (Proceedings)Lan, Y., Hoffmann, W.C., Fritz, B.K., Martin, D.E., Lopez, J. 2006. Effectiveness of spray adjuvants on reduction of spray drift. ASABE Annual International Meeting, December 4, 2006, Orlando, Florida. Paper No. AA06-004.Atmospheric and stability effects on aerially applied agricultural sprays - Preliminary results

- (Proceedings)Fritz, B.K. 2006. Atmospheric and stability effects on aerially applied agricultural sprays-Preliminary results. In: Proceedings of the National Agricultural Aviation Association Meeting, December 4, 2006, Orlando, Florida. Paper No. AA06-006.METEOROLOGICAL EFFECTS ON DEPOSITION AND DRIFT OF AERIALLY APPLIED SPRAYS

- (Peer Reviewed Journal)Fritz, B.K. 2006. Meteorological effects on deposition and drift of aerially applied sprays. Transactions of the ASABE. 49:1295-1301.USDA-ARS AERIAL APPLICATION TECHNOLOGY FOR CROP PRODUCTION AND PROTECTION GROUP - RESEARCH OVERVIEW

- (Proceedings)Fritz, B.K., Hoffmann, W.C., Martin, D.E., Lopez, J., Lan, Y. 2006. USDA-ARS aerial application technology for crop production and protection group - research overview. In: Proceedings of the SERG-International and US Forestry Service Workshop, February 15-18, 2006, Banff, Canada, p. 25-28.AERIAL APPLICATION METHODS FOR INCREASING SPRAY DEPOSITION ON WHEAT HEADS

- (Peer Reviewed Journal)Fritz, B.K., Kirk, I.W., Hoffmann, W.C., Martin, D.E., Hofman, V., Hollingsworth, C., McMullen, M., Halley, S. 2006. Aerial application methods for increasing spray deposition on wheat heads. Applied Engineering in Agriculture. 22:357-364.AERIAL APPLICATION METHODS FOR INCREASING SPRAY DEPOSITION ON WHEAT HEADS

- (Proceedings)Fritz, B.K., Hoffmann, W.C., Martin, D.E. 2005. Aerial application methods for increasing spray deposition on wheat heads. In: Proceedings of the National Agricultural Aviation Association Meeting, December 4-7, 2005, Reno, Nevada. Paper No. AA05-006.Novaluron as an ovicide: A model for evaluation of aerially-applied insectides. Part 2: Field Study

- (Abstract Only)Martin, D.E., Lopez, J., Hoffmann, W.C., Fritz, B.K. 2005. Novaluron as an ovicide: A model for evaluation of aerially-applied insectides. Part 2: Field Study. National Agricultural Aviation Association Meeting. Paper No. AA05-005.HI-RISE - HAZARDOUS INCIDENT RAPID IN-FLIGHT SUPPORT EFFORT: USE OF ASYNOPTIC UPPER-AIR DATA TO IMPROVE WEATHER FORECASTS AT WILDLAND FIRES AND OTHER HAZARDOUS INCIDENTS

- (Abstract Only)Witsaman, P.G., Zeitler, J.W., Oaks, M.C., Murdoch, G.P., Nagle, S.R., Hoffmann, W.C., Fritz, B.K. 2005. HI-RISE - Hazardous incident rapid in-flight support effort: Use of asynoptic upper-air data to improve weather forecasts at wildland fires and other hazardous incidents. In: Proceedings of the Joint 6th Symposium on Fire and Forest Meteorology and 19th Interior West Fire Council Meeting, October 25-27, 2005, Canmore, Alberta, Canada. 2005 CDROM.Influence of meteorological time frame and variation on horizontal dispersion coefficients in Gaussian dispersion modeling

- (Peer Reviewed Journal)Fritz, B.K., Shaw, B.W., Parnell, C.B. 2005. Influence of meteorological time frame and variation on horizontal dispersion coefficients in Gaussian dispersion modeling. Transactions of the ASAE. 48:1185-1196.Aerial methods for increasing spray deposits on wheat heads

- (Proceedings)Kirk, I.W., Fritz, B.K., Hoffmann, W.C. 2004. Aerial methods for increasing spray deposits on wheat heads. Proceedings of the American Society of Agricultural Engineers, August 1-4, 2004, Ottawa, Ontario, Canada. Paper No. 04-1029.ROLE OF ATMOSPHERIC STABILITY IN DRIFT AND DEPOSITION OF AERIALLY APPLIED SPRAYS - PRELIMINARY RESULTS

- (Other)Fritz, B.K. 2004. Role of atmospheric stability in drift and deposition of aerially applied sprays - preliminary results. American Society of Agricultural Engineers Meetings Papers, August 1-4, 2004, Ottawa, Canada. Paper No. 04-1031.ALTERNATIVES TO INCREASE AERIAL SPRAY DEPOSITS FOR FHB CONTROL

- (Proceedings)Kirk, I.W., Fritz, B.K., Hoffmann, W.C. 2003. Alternatives to increase aerial spray deposits for FHB control. In: Proceedings of the National Fusarium Head Blight Forum, December 13-15, 2003, Bloomington, Minnesota. p. 88-91.MEASUREMENT AND ANALYSIS OF ATMOSPHERIC STABILITY IN TWO TEXAS REGIONS

- (Proceedings)Fritz, B.K. 2003. Measurement and analysis of atmospheric stability in two Texas regions. In: Proceedings of the American Society of Agricultural Engineers/National Agricultural Aviation Association Technical Session, December 6-10, 2003, Reno, Nevada. Paper No. AA03-005.The Fritz-Texas A&M dispersion model development and comparative modeling with ISC3 and AERMOD

- (Proceedings)Fritz, B.K., Shaw, B.W., Parnell, C.B. 2003. The Fritz-Texas A&M dispersion model development and comparative modeling with ISC3 and AERMOD. Proceedings of the Beltwide Cotton Conference, January 6-10, 2003, Nashville, TN. CDROM.
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