Spider mite resistance

摘要

New research on spider mites did not find resistance to commonly used miticides in Washington State vineyards, but growers should not be lulled into thinking resistance won't develop.Spider mites are one of the largest and most destructive groups of pests in agriculture. They are commonly found in wine grape vineyards, though are not typical in juice grapes.Of the five species most often found in wine grapes in the United States—Pacific, McDaniel, European red, two-spotted, and Willamette—the two-spotted spider mite, Tetranychus urticae, is the most common in eastern Washington wine grape vineyards.