10种杀虫剂对花椰菜田小菜蛾的防治效果

摘要

Using spraying method,the control effects of 10 kinds of pesticides on the larvae of Plutella xylostella in cauliflower were studied.The results showed that chlorantraniliprole 200 g/L SC 50-66.7 mg/L,indoxacarb 150 g/L EC 51.7-68.2 mg/L,spinetoram 60 g/L SC 46.2-60 mg/L,atrine 1％ SL 21.3-30.3 mg/L,eucalyptol 5％ SL 106.4-125 mg/L could control Plutella xylostella effectively.At the first day after treatment,the control effects were more than 73％.At the 7th day after treatment,the control effects were 90％-98％.The above pesticides could be used as rotational insecticides in production.%采用喷雾法,研究了8种生物源杀虫剂、2种化学杀虫剂对花椰菜田小菜蛾幼虫的防治效果.结果表明:200 g/L氯虫苯甲酰胺SC 50～66.7 mg/L、150 g/L茚虫威EC 51.7～68.2 mg/L、60 g/L乙基多杀菌素SC 46.2～60 mg/L、1％苦参碱SL 21.3～30.3 mg/L、5％桉油精SL 106.4～125 mg/L处理,药后1d的防效在73％以上,药后7d的防效为90％～98％.上述5种杀虫剂可作为防治小菜蛾的轮换药剂在花椰菜生产中推广应用.