沙蒿木蠹蛾幼虫化学防治试验研究

Experimental Study on Chemical Control of Larvae of Holcocerus artemisiae

应用3.2%阿维菌素乳油、25 g/L高效氯氟氰菊酯乳油、10%吡虫啉可湿性粉剂、30%唑磷毒死蜱-蛀虫净+增效剂LS-906、5%二嗪磷颗粒剂、50%敌西·辛硫磷乳油6种药剂,采用杆基喷雾,根部灌根、埋药、杆基注药方法分别对沙蒿木蠹蛾杆基初孵幼虫和根部钻蛀幼虫进行防治试验。结果表明:6种药剂施用后虫口数量均有减少,30%唑磷毒死蜱-蛀虫净+增效剂LS-906防治效果最好,25g/L高效氯氟氰菊酯乳油次之,施药10天后,校正平均虫口减退率68.3%以上,杆基喷雾和灌根能够有效防治沙蒿木蠹蛾幼虫的危害。

Use3.2%Abamectin EC、25 g/L Lambda-cyhalothrin EC、10%Imidacloprid WP、30%chlorpyrifos+synergist LS-906、5%diazinon Granules、50%Dixiphos-phoxim EC by rod-based spray,root irrigating,burying,and rod-based injection methods to conduct control experiments on both the first hatched larvae and root borer larvae of Holcocerus artemisiae.The results showed that the number of insect populations was reduced after the application of the 6 pesticides,30%chlorpyrifos+synergist LS-906 had the best control effect,followed by 25 g/L lambda-cyhalothrin EC,and 10 days after the application,the corrected average population reduction rate was more than 68.3%.The rod-based spray and root irrigation can effectively control the damage of the larvae of Holcocerus artemisiae.