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报道了质型多角体病毒（ＣＰＶ 复合剂） 对马尾松毛虫防治效果的试验研究，筛选出菌毒复合剂Ⅰ、Ⅱ号防治效果最佳，林间虫口减退率达７６ ％ ，蛹期虫口减退率９８ ％ ，公顷用量Ⅰ号１２００ 亿ＰＩＢ，Ⅱ号２４００ 亿ＰＩＢ．
The experimental study on the control effect of CPV against P. massoniana was reported. The results showed that the best preventive and control effects of the compound Ⅰ and Ⅱ were screened out, and the reduction rate was 76% The rate of 98%, hectares on the amount of 120 billion PIB, Ⅱ No. 240 billion PIB.