论文部分内容阅读
棉铃虫是危害棉花生产的主要害虫之一。因而有的棉农为怕治虫而索性不种棉花。正当大家为治棉铃虫苦无良策时,乡农枝站王站长拿出一份1995年第1期《农村百事通》,告诉我们:“生物农药,以菌治虫,人畜无毒,对棉铃虫防效为95%。”我抱着试试看的心情从乡农技站买了4瓶Bt—8010生物农药,按照使用说明,顺着一块虫情较重的棉田喷洒。30分钟后,发现部分棉铃虫开始摇头,并且上吐下泻,有了中毒反映。又过了两个小时,棉铃虫开始从棉叶上往下掉,卷曲成团。
Cotton bollworm is one of the major pests that endanger cotton production. Therefore, some farmers are afraid of pest control and simply do not grow cotton. Just as we rule cotton bollworm bitterly when the policy, the township branch stationmaster Wang come up with a 1995 “No. 1”, “tell us:” biological pesticides, bacteria and insects, non-toxic to humans and animals, the bollworm Control efficiency of 95%. "I took a try Trying to buy 4 bottles of Bt-8010 biological pesticide from the township agronomy station, according to instructions for use, along a heavier infested cotton fields. After 30 minutes, we found that part of the cotton bollworm shook his head and vomit and diarrhea, with poisoning reflected. Two hours later, the cotton bollworm began to fall from the cotton leaf and curled into a mass.