摘要
应用日本赤松毛虫质型多角体病毒(以下简称JDS-CPV)对马尾松毛虫第一代3龄和5龄幼虫进行了生物测定。结果表明,JDS-CPV对3龄和5龄幼虫的LC_(50)分别为1.6×10~5CPB/ml和3.3×10~5CPB/ml。其回归直线方程分别为Y=2.44+0.49x和Y=1.83+0.57x。对一代3龄虫的LD_(50)为2.1×10~3CPB/ml,回归直线方程为Y=1.72+0.98x。以1×10~8CPB/ml浓度为例的LT_(50),3龄虫为8.5天,5龄虫为13天。证实JDS-CPV对我国马尾松毛虫有较好的毒力。
Bioassay of JDS-CPV was conducted on the 3rd instar and 5th instar larvae of pine caterpillar D. punctatus. The regression equations between concentration and mortality for 3rd instar and 5th instar were Y=2.44+0.49x and Y=1.83+0.57x, LC_(50) value were 1.6×10~5PIB/mL and 3.3×10~5PIB/ml respectively. The regression equation between the count of PIB and mortality for 3rd instar larvae is Y=1.72×0.98x, LD_(50) value is 2.1×10~3PIB/larvae. For example as 1×10~8PIB/ml, the LT_(50) value for 3rd instar and 5th instar larvae were 8.5 days and 13 days respectively. The results showed that the JDS-CPV has higher virulence to pine caterpillar.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1989年第4期317-322,共6页
Scientia Silvae Sinicae
关键词
松毛虫
质型
多角体
病毒
生物测定
Pine caterpillar
Cytoplasmic Polyhedrasis Virus
Bioassay
