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Test on Control of Aphis gossypii Glover andHeliothis armigera Hubner H.with Fenthion-Methomyl

Yang Xiangli(Shangdong Institute of Pesticide,Jinan,250100)  
s:The toxicities of fenthion-menthomyl 20 EC toAphis gossypii Glover and Heliothis armigera Hubnner weretested in greeen-house. The co-toxicity cofficients were 318.9and 204.2.Fenthion-methomyl 20 EC can effectively controlAphis gossypii Glover and Heliothis armigera Hubner,espe-cially 4-5 stadium larva of Heliothis armigera Hubner in field.
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