摘要
在兴城地区选择白僵菌粉、苏云金杆菌、25%灭幼脲3号悬浮剂等几种无公害药剂对3~4龄赤松毛虫进行防治效果试验。结果表明,所选药剂防治效果均比较理想,达到86.9%以上,其中苏云金杆菌相对药效较快,白僵菌粉有更好的迟效性;大面积的防治试验结果显示,3种药剂的总体防治效果均较好,且对环境安全性好,值得在生产中大面积推广。
Experiments on efficiency to control Beauveria bassiana powder,Bacillus thuringiensis and 25% chlorpyrifos were conducted experiments on Dendrolimus spectabilis in Xingcheng area.Result shows that the control effect of the selected fungicides is ideal,reaching more than 86.9%,of which Bacillus thuringiensis is relatively effective,and Beauveria bassiana powder have optimal lateness.The large area control experiment shows that overall control effect of three kinds of fungicides are all optimal,the overall control effect of the pharmacy is optimal;three kinds of fungicides have optimal safety to environment;it is worth in the production of large area promotion.
出处
《防护林科技》
2017年第9期67-68,共2页
Protection Forest Science and Technology
关键词
无公害药剂
赤松毛虫
防治效果
辽宁兴城
fungicides
Dendrolimus spectabilis
control effect
Xingcheng City of Liaoning Province
