Technical Report
 

Pathogenicity and Management of Plant-Parasitic Nematodes on Vitis vinifera in Oregon Vineyards

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https://ir.library.oregonstate.edu/concern/technical_reports/0g354g36x

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  • Plant-pathogenic nematodes that cause yield loss in California and European vineyards are found in over 85 % of Oregon vineyards. Population densities of Xiphinema americanun (dagger nematode) and Criconemella xenoplax (ring nematode) were found in 37% of vineyards at levels reported to cause > 10-25% loss in California vineyards. However, these nematode species were rarely associated with poor vine vigor in Oregon vineyards. It is unclear whether established vineyards will succumb to nematode damage over time or if the high vigor of vines in Oregon allow them to compensate for damage caused by nematodes. Even if older vines can withstand nematode parasitism, vines replanted in infested soil with high population densities of plant-parasitic nematodes may not fare as well. The objectives of this research are: 1) to ascertain if and under what conditions plant-parasitic nematodes can reduce the vigor of established grapevines, 2) to evaluate techniques for managing nematode populations and nematode injury to vines, and 3) to develop strategies for replanting grapevines in nematode infested ground.
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file details Pathogenicity_and_management_of_plant-parasitic_nematodes_on_Vitis_vinifera_in_Oregon_vineyards.pdf 2017-07-18 公开 下载