苹果蠹蛾老熟幼虫诱杀技术

本文对简易杀虫诱集带诱杀苹果蠹蛾Cydia pomonella(L.)老熟幼虫的效果进行了研究。发现在编织袋,旧衣物,瓦楞纸3种材料中,旧衣物对苹果蠹蛾的老熟幼虫捕获效果最好,其诱捕量占总诱捕量的68.42%;在诱集带中添加的农药中(包括乐斯本、敌敌畏、白僵菌、灭幼脲3号、高效氯氰菊酯等),乐斯本的杀虫效果最好,幼虫死亡率达到98.20%;在不同浓度的乐斯本溶液中,500倍乐斯本杀虫效果最好,幼虫死亡率达到91.61%,且对幼虫没有驱避作用;500倍乐斯本+50倍白僵菌药杀虫诱集带有效期长达40多天,37d后对幼虫的杀伤效果依然达到96%以上,作为老熟幼虫的防治措施十分理想。

Investigation of the effectiveness of trapping Cydia pomonella larvae with chemical insecticide impregnated bands

The effectiveness of bands made from different types of material and impregnated with insecticides to trap codling moth larvae was investigated. The results show that bands made from old clothes were better than those made from woven bags or corrugated strips. 68.42% of larvae were trapped by bands made from old clothes. The relative effectiveness of insecticides was, in descending order, Lorsban （Chlorpyrifos）, dichlorvos, Beauveria bassiana, difluron, beta-cypermethrin. Lorsban achieved larval mortality of up to 98.20%. A 500 part dilution of Lorsban was the most effective achieving larval mortality of 91.61%. A mixture of a 500 part dilution of Lorsban and a 50 part dilution of Beauveria bassiana was an ideal combination for controlling codling moth larvae; effective for 40 days with larval mortality 96% after 37 days.