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截形叶螨Tetranychus truncate(Ehara)是玉米害螨的优势种群,在我国北方玉米产区大面积发生危害[1]。由于玉米植株高、种植密度大,危害盛期药剂防治几乎无法实施,筛选和利用捕食螨控制叶螨的危害是拓展害螨防治的有效途径。为明确巴氏钝绥螨对截形叶螨的控制潜能,本试验测定了巴氏钝绥螨Amblyseius barkeri(Hughes)对截形叶螨各螨态的捕食作用。
Tetranychus truncate (Ehara) Tetranychus truncate (Ehara) Tetranychus truncate is the dominant species of corn pests mites, maize in northern China large area of occurrence of damage [1]. Due to the high plant height, high planting density, and the almost complete prevention and control of pesticides in the midst of disease, the screening and utilization of predatory mites to control the damage of spider mites is an effective way to expand the prevention and control of mites. In order to clarify the control potential of A. amblyseius on Tetranychus urticae, we tested the predation effect of Amblyseius barkeri (Hughes) on each mite state of Tetranychus truncatus.