【摘要】 在室内用氯氰菊酯、敌敌畏分别对甘蓝蚜[Brevicorynebrassicae(Linnaeus)]进行了毒力测定及防治试验。结果表明:氯氰菊酯和敌敌畏乳油对甘蓝蚜的LC50分别为4 1137,116 4861μg/mL,10%氯氰菊酯和80%敌敌畏乳油分别稀释成1500～3000倍液和1500倍液对甘蓝蚜的室内防治效果较好,其药后第1～5d的防效分别为75 3%～87 4%和76 7%～86 6%.更多还原

【Abstract】 Toxicity determination and control effect experiments of Cypermethrin and Dichlorvos to the vegetable aphis (Brevicoryne brassicae) were conducted in the laboratory. The results showed that the LC50 of Cypermethrin and Dichlorvos were 4113?7 μg/mL and 116468?1 μg/mL respectively. When 10% Cypermethrin EC and 80% Dichlorvos EC were diluted at 1?500～3?000 times and 1?500 times respectively, the control effects were better to the vegetable aphis. Their effects were 753%～874% and 767%～866% for each during the first five days after application.更多还原