2噻虫啉微胶囊粉剂防治板栗桃蛀螟试验

摘要

2010年7月采用2%噻虫啉微胶囊粉剂雾化喷粉方法进行防治板栗桃蛀螟试验,结果表明在板栗园喷施不同剂量2%噻虫啉微胶囊粉剂后,均可取得显著的防治效果,且防治效果与噻虫啉的使用剂量成正比。噻虫啉每公顷用量为3 000 g和4 500 g时,防治效果最高达到80.64%。平均防治效果均超过70%;噻虫啉每公顷用量1 500 g时,平均防治效果超过60%。防治区比对照区虫果率至少降低16.4%。%The pesticide effect to Dichocrocis punctiferalis Guenee of 2% Thiacloprid DP,was tested in Chestnut Orchard in July,2010.Results showed that sprayed with Thiacloprid DP could achieved significant results to kill the Dichocrocis punctiferalis Guenee in all of the lishui region.And the kill efficiency became stronger by the pharmacy dose increased.When the dose of Thiacloprid DP is 3 000 g and 4 500 g,the average controlling effect exceed 70%;When the dose is 1 500 g,the average controlling effect exceed 60%.The quantity of the chestnut which damaged by Dichocrocis punctiferalis Guenee lower 16.4% in Treatment area than controlling area,at least.The best pesticide effect up to 80.64%.