防治小麦蚜虫的低毒低残留农药的筛选

Screening of Low-toxic and Low-remain Chemicals for Wheat Aphid

从蚜虫虫口减退率和防治效果方面,对阿维菌素、吡虫啉和氧化乐果防治小麦蚜虫进行了药剂筛选。结果表明,无论从防治效果还是无公害角度,低毒、低残留农药阿维菌素和吡虫啉均可替代高毒、高残留农药氧化乐果防治小麦蚜虫。吡虫啉价格便宜,农民易于接受,是防治小麦等粮食作物害虫的理想推广药剂。吡虫啉较阿维菌素和氧化乐果药效释放缓慢,防治小麦蚜虫时,要适当提早用药时间。

Three different chemicals were tested on their effects and remains for wheat aphid control. The result showed that Aweijunsu and Bichonlin could be used for the replacement of Yanhualuoguo and their application techniques were also discussed.