Detections on the Other Microbial Contaminants in the CPV Insecticide for Pine Caterpillar and Studies on the Control Methods

The results of detections on the microbial contaminants in CPV agent for Pine Caterpillar (Dendrolimus spp.) showed that there were not enteric pathogenic microorganisms for human beings in the agent, the germ in the agent was not generative and the fungus in the agent could be controlled by inhibitors and disinfectants practiced in the test. The microbial contaminants in the agent were decreased by a thousand times when the pellet of the agent was treated with acetone,volume/wet-weight =1:1.A powder was easily obtained through treating the pellet of the agent with supersaturated-lactose-acetone in the ratio of 1:1. The results of bioassay showed that the treated and untreated agents did not indicate any evident difference in pathogenicity except the sample treated with sodium azide.