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[目的]研究蒲螨对危害石楠的梨小食心虫的寄生能力和田间防治效果。[方法]进行蒲螨对梨小食心虫的室内侵染试验以及野外防治试验,观察蒲螨的寄生能力及活动特性,研究湿度、温度等环境因子对蒲螨寄生能力的影响。[结果]在适宜的条件下蒲螨对梨小食心虫有良好的防治效果;在不同的温度、湿度条件下蒲螨对寄主的搜寻能力存在差异,湿度对蒲螨活动能力影响较大,而温度对蒲螨个体活力影响较大。[结论]该研究结果表明蒲螨对梨小食心虫的控制是有效的。
[Objective] The research aimed to study the parasitism ability and field control effect of Po mite on Pest insects harmful to heather. [Method] Indoor infestation experiment and field control experiment of Pyriproides graminicola were carried out. The parasitism and activity characteristics of Po mite were observed. The effects of environmental factors such as humidity and temperature on the parasitism of Po mite were studied. [Result] The results showed that there was a good control effect of Po mite on B. militaris under suitable conditions. There was a difference in search ability of Po mites among hosts under different temperature and humidity conditions. Humidity had a great effect on the activity of Po mite, while the temperature Po mite individual activity greater impact. [Conclusion] The results of this study indicated that the control of Po mite on Pest beetle was effective.