NPV,CPV and GV viruses have been isolated from dead larval bodies of Dendrolimus spp. and other moths in Chengjiang County of Yunnan Province since 1980.From 1980 to 2001,they were applied against Dendrolimus houi,D.

• 198 0年以来云南澄江从松毛虫等自然感病虫尸中分离出多种核型多角体病毒 (NPV) ,质型多角体病毒 (CPV)和颗粒型多角体病毒 (GV)。