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Title:   Author  item
                                            Schneider, Sallyitem
                                            Trout, Thomasitem
                                            Browne, Gregitem
                                            AJWA, HUSEIN - UC DAVISitem
                                            SIMS, J - UC RIVERSIDE
  Submitted to: American Phytopathological Society
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 6/1/2003
                                    Publication  Date: 7/21/2003
                                    Citation: SCHNEIDER, S.M. ALTERNATIVES TO METHYL BROMIDE FOR VINEYARD REPLANT - RESULTS OF FIELD TRIALS.. AMERICAN PHYTOPATHOLOGICAL SOCIETY. 2003.Interpretive Summary: Alternatives to methyl bromide for vineyard replant - results of on-going field trials.  S.M. SCHNEIDER(1), T.J. Trout(1), G.T. Browne(2), H. Ajwa(3), and J. Sims(4). (1) USDA ARS, Parlier, CA  93648; (2) USDA ARS, Davis, CA  95616; (3) Univ. of California-Davis, Salinas, CA  93905; (4) Univ. of California, Riverside, CA 92521.

Field evaluation of potential methyl bromide alternatives for vineyard replant must determine not only efficacy of pathogen control at the time of planting the new vineyard, but also the efficacy of pest control and impact on crop growth and yield during the early growth and fruiting years.  This paper reports the on-going performance of chemical, cultural, and genetic control measures in field trials planted in 1998 and 2000.  Sixty-five year old Thompson Seedless vineyards were removed and treatments imposed.  Treatments included: drip-applied 1,3-dichloropropene (Telone); shank injected iodomethane; 1-, 2-, and 3-year fallow; resistant rootstocks; untreated control; and methyl bromide.  Chemical treatments reduced nematode populations comparable to methyl bromide.  Fallow and resistant rootstocks reduced populations of Meloidogyne spp., rootknot nematode, but not Tylenchulus semipenetrans., citrus nematode.  Plant growth and yield varied with treatment and scion/rootstock combination.
                                Technical Abstract: Alternatives to methyl bromide for vineyard replant - results of on-going field trials.  S.M. SCHNEIDER(1), T.J. Trout(1), G.T. Browne(2), H. Ajwa(3), and J. Sims(4). (1) USDA ARS, Parlier, CA  93648; (2) USDA ARS, Davis, CA  95616; (3) Univ. of California-Davis, Salinas, CA  93905; (4) Univ. of California, Riverside, CA 92521.

Field evaluation of potential methyl bromide alternatives for vineyard replant must determine not only efficacy of pathogen control at the time of planting the new vineyard, but also the efficacy of pest control and impact on crop growth and yield during the early growth and fruiting years.  This paper reports the on-going performance of chemical, cultural, and genetic control measures in field trials planted in 1998 and 2000.  Sixty-five year old Thompson Seedless vineyards were removed and treatments imposed.  Treatments included: drip-applied 1,3-dichloropropene (Telone); shank injected iodomethane; 1-, 2-, and 3-year fallow; resistant rootstocks; untreated control; and methyl bromide.  Chemical treatments reduced nematode populations comparable to methyl bromide.  Fallow and resistant rootstocks reduced populations of Meloidogyne spp., rootknot nematode, but not Tylenchulus semipenetrans., citrus nematode.  Plant growth and yield varied with treatment and scion/rootstock combination.


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