【摘要】 利用14%吡虫啉.敌敌畏注干液剂、4.5%吡虫啉注干液剂、2%阿维菌素注干液剂和30%敌畏.氧乐注干液剂等对危害椰树的椰心叶甲进行了树干注射防治试验。结果表明14%吡虫啉.敌敌畏注干液剂、4.5%吡虫啉注干液剂和30%敌畏.氧乐注干液剂,对椰心叶甲有较好的防治效果。其中14%吡虫啉.敌敌畏注干液剂防效最好,注药量0.7 mL/cm,30 d防效达95.10%。2%阿维菌素注干液剂防效差,30 d防效仅为32.84%。更多还原

【Abstract】 The field bioassay of 4 trunk injection insecticides(14% Imidacloprid+DDVP,4.5%Imidacloprid,2%Abamectin and 30%DDVP+omethoate) was conducted against Brontispa longissima.The results showed that 14%Imidacloprid+DDVP,4.5%Imidacloprid and 30% DDVP+omethoate were efficient,and 14%Imidacloprid+DDVP exhibits high efficiency.The control effect reached 95.10% 30 days after the injection at the dose of 0.7 mL/cm trunk ground diameter.更多还原