十二种不同杀虫剂对梨小食心虫和桑白蚧的防治效果

摘要

The control effects of 12 different types of pesticides against Grapholitha molesta and Pseudaulacaspis pentagona were compared.The results showed that 35 ％ chlorantraniliprole WG (1:8 000),10 ％ acetamiprid ME (1∶ 3 000),1％ emamectin benzoate AS (1∶ 1 500),and 80％ methomyl SP (1 ∶ 1 500) had stable control effects.240 g/L spirotetramat SC (1∶1 000) had an excellent control effect against P.pentagona,followed by 2.5 g/L lambda-cyhalothrin EC (1 ∶ 2 000),2.5 ％ bifenthrin EC (1 ∶ 1 000),and 40 ％ chlorpyrifos EC (1 ∶ 1 500).This study indicated that chlorantraniliprole,acetamiprid and emamectin benzoate had better control effects against G.molesta,but might cause aggravated harms by P.pentagona,which still needs further study.%试验比较了不同类型的12种杀虫剂对梨小食心虫为害桃梢的防效和对桑白蚧的兼治效果.结果表明:35％氯虫苯甲酰胺水分散粒剂8 000倍液、10％啶虫脒微乳剂3 000倍液、1％甲维盐水剂1 500倍液、80％灭多威可溶粉剂1 500倍液具有较好的防效.240 g/L螺虫乙酯悬浮剂1 000倍液防治桑白蚧效果较突出,其次为2.5 g/L高效氯氟氰菊酯乳油2 000倍液、2.5％联苯菊酯乳油1 000倍液和40％毒死蜱乳油1 500倍液.氯虫苯甲酰胺、啶虫脒、甲维盐虽对梨小食心虫防效较好,但本试验发现,可能会导致桑白蚧为害加重,是值得进一步研究和探讨的问题.