Effects of Five Common Pesticides on the Growth of Orius sauteri
[Objective]To understand the effect of pesticides on the growth of Orius sauteri.[Method]The eggs of Orius sauteri were treated with five common pesticides by impregnation method.[Result]The eggs of the Orius sauteri,which were treated with 2%matrine aqueous solu-tion,430 g/L tebuconazole suspension concentrate and 30%hymexazol aqueous solution respectively,could hatch and grow normally.Al-though the eggs of the Orius sauteri treated with 10%chlorfenapyr suspension concentrate could hatch normally,the nymph survival rate signif-icantly decreased within their eggs hatching 48 hours(P＜0.05).The hatching rate of the eggs of the Orius sauteri treated with 20%dinotefuran water soluble graule was significantly lower than that of the blank control group and other treatment groups(P＜0.05),and the nymph survival rate was also significantly decreased within their eggs hatching 48 hours(P＜0.05).[Conclusion]During the release of the Orius sauteri in the field,it is necessary to strictly control the spraying of chlorfenapyr and dinotefuran to avoid affecting their growth.
PesticideOrius sauteriIncubation rateAcquisition rate of 5th instar nymphAdult acquisition rate
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