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4种扩散试验法证明氧化乐果、杀虫脒、溴氰菊酯和氰戊菊酯对朱砂叶螨(Tetranychus cinnabarinus Boisduval)有较强的刺激扩散作用,扩散率基本随药剂浓度增加而升高,扩散高峰在施药后24h,叶螨对药剂处理叶(株)有很强的忌避性。3种激发生殖力试验证明,11种农药中,增殖最大又持久的4种,且逐日上升;抑制力高又持久的2种,并逐步下降;5种居中,即先抑制后增殖,而且增殖作用还包括直接和间接两种。这些可能是引起叶螨再猖獗的重要原因。
Four kinds of diffusion tests showed that the omethoate, chlordimeform, deltamethrin and fenvalerate had strong stimulating and dispersing effects on Tetranychus cinnabarinus Boisduval, and the diffusivity increased with the increase of the concentration , Spread of peak 24h after spraying, spider mite on drug treatment leaves (strain) has a strong avoidance. Three kinds of provocative test proved that among the 11 kinds of pesticides, four kinds of the most prolific ones were persistent and increased day by day. Two kinds of high and persistent two kinds of pesticides were gradually decreased. The five kinds of middle ones inhibited the proliferation and then proliferated The role also includes direct and indirect two. These may be caused by spider mite re-rampant important reason.