Field Efficacy of Aight Insecticides Against Plutella Xylostella in Cabbage
The field efficacy of eight insecticides against Plutella xylostella was tested.The results showed that the control effects of 15% tolfenpyrad SC,30% chlorfenapyr SC,10% cyantraniliprole OD and 5% chlorantraniliprole SC on P.xylostella were more than 83% at 3 days after application and more than 90% at 10 days after application,demonstrating good durability and effectively control of P.xylostella.The control effect of 150 g/L indoxacarb SC was 89.22% at 3 days after application,and 84.93% at 10 days,showing good rapid effect.At 3 days after treatment,the control effects of 10% lufenuron SC and 5% hexaflumuron EC were 75.09%～77.14%,and at 10 days,the control effect improved greatly,reaching 83.99%～87.03% .The control effect of 5% emamectin benzoate WG was 80.46% at 3 days after treatment and 83.98% at 10 days after treatment.All tested chemicals were safe for cabbage and had no adverse effects on other beneficial organisms.
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