Field trials were carried out to investigate the control effects of seven insecticides against Cnaphalocrocis medinalis.The results showed that at the dosage of 600 mL/hm2,metaflumizone+methoxyfenozide 40％SC had good quick efficacy and persistent control effect on Cnaphalocrocis medinalis,with the control effect and the leaf protection effect of 86.67％and 86.25％on the 14th day after treatment.It was worth promoting and applying in rice production.Spinetoram 25％WG 150 g/hm2 and spinosad+indoxacarb 15％SC 300 mL/hm2 also had good control effects.
维普
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