摘要
杨柳小卷蛾连年发生,对海晏县人工营造的乌柳林造成较大的危害。通过25%的灭幼脲3号悬浮液1200g.hm-2和1000g.hm-2不同浓度的配比试验,从虫口减退率入手分析了该药剂的实际防效,结果表明两种浓度的药剂防效均在83%以上,且持效期长,对天敌及周围环境无危害,适合在今后的防治工作中使用。
Gypsonoma miuntana is happened year by year in Haiyan Qinghai recently. Control Gypsonoma minutana were tested by 25% difluron No. 3 in Haiyan which concentration at 1200g·ha^-1and 1000 g·ha^-a to learn their control effect. The results showed the two concentration control effect were both over 83%. And control effect was sustained longer. There were harmless for natural enemy and around environmen. It could be applied to control Gypsonoma minutana from then on.
出处
《青海农林科技》
2008年第3期68-69,71,共3页
Science and Technology of Qinghai Agriculture and Forestry
关键词
灭幼脲
杨柳小卷蛾
防治技术
海晏县
Difluron
Gypsonoma minutana
Control technique
Haiyan
