论文部分内容阅读
大蓑蛾是园林植物的主要食叶害虫,食性杂,过去一般是用敌百虫和敌敌畏进行防治,但大蓑蛾的危害每年仍不见减少。近年来我们开展了应用青虫菌防治大蓑蛾幼虫的对比试验,证明一定浓度的青虫菌防治大蓑蛾幼虫是有效果的。试验方法1.青虫菌对大蓑蛾幼虫不同浓度的防治试验,以及不同防治时间、不同树种的试验对比,都采用西郊公园农药厂定型产品,每克含活孢子为100亿以上。2.苏云金干菌各菌株之间的比较,采用在同等条件下培养出的摇瓶液,按同样稀释倍数作比较。
Gardening moths are the major leaf-feeding pests and feeding habits of garden plants. In the past, they were usually treated with trichlorfon and dichlorvos. However, the damage caused by mackerel moths did not decrease every year. In recent years, we conducted a comparative study on the prevention and control of Larvae larvae using the Cymbidium fungi, and proved that certain concentrations of Cyanobacteria can effectively control larvae of Larvae larvae. Test methods 1. Coccidae larvae of different concentrations of control experiments and control of different time, different species of test contrast, have adopted the western suburbs Park Pesticide Factory stereotypes products, per gram live spores of more than 10 billion. 2. Comparison of each strain of dried sauringensis, shake flask culture under the same conditions, according to the same dilution ratio for comparison.