Investigation on the efficacy of mixed insecticides against the Cnaphalocrocis medinalis
To investigate the control efficacy and duration of mixed insecticides such as spinosad+indoxacarb indoxacarb, spinosad, and tetraniliprole mixed with abamectin against the Cnaphalocrocis medinalis, as well as the safety of these mixtures on rice, a field efficacy trial was conducted. The results showed that the application of 15％ indoxacarb SC and other insecticides mixed with 10％ abamectin SC significantly controlled the Cnaphalocrocis medinalis. During the stable period of damage, the mixtures of 15％ indoxacarb SC at 300 mL/hm2 with 10％ abamectin SC at 750 mL/hm2 and 200 g/L tetraniliprole SC at 150 mL/hm2 with 10％ abamectin SC at 750 mL/hm2, applied twice, provided control efficacy against the Cnaphalocrocis medinalis of over 95％. It was recommended to spray the mixture of 15％ indoxacarb SC at 300 mL/hm2 with 10％ abamectin SC at 750 mL/hm2, or 200 g/L tetraniliprole SC at 150 mL/hm2 with 10％ abamectin SC at 750 mL/hm2, on the stems and leaves during the peak hatching period of the eggs to control the Cnaphalocrocis medinalis.
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