摘要
采用苏云金杆菌H3 - 1 1 1菌株摇瓶培养液对舞毒蛾进行了室内毒力测定 ,48h毒力回归方程为Y=4.42 2 0 +1 .631 1X ,γ =0 .965 2 ,LC50 =0 .0 0 0 0 4 5 2 ,与标准品比较 ,其生物效价为 2 766 .0 4IU·mg- 1 ,大田试验菌液稀释 2 0 0～ 60 0倍 ,96h防效达 61 .1 %～ 83 .8% ,有较高的毒效 ,有必要进一步扩大试验 。
A novel Bacillus thuringiensis Mutant strain H3-111 for control of tree pest is described in the paper. Toxic regression equation for BtH3-111 broth of 48h on Lymantria dispar in laboratory test is Y =4.422 0+1.631 1 X ,γ=0.965 2, LC50=0.000 045 2, and compared with standard sample(HD-1-S-1982), efficacy is 2 766.04 IU·mg -1 ; meanwhile there has found to be 61.1%～83.8% of mortality with dilution of 200～600 times in field test. It is nessary to further test in field to examine the application of control to Lymantria dispar in large scale.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2002年第5期86-87,共2页
Journal of Northeast Forestry University
