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于1993年5月，在广东省阳西县程村镇进行质型多角体病毒防治第一代马尾松毛虫试验．示范试验3种处理的病毒用量为15GPIB／hm2，75GPIB／hm2，150GPIB／hm2，虫口减退率分别为41．3％，75．9％，80．4％，对照区的虫口减退率为17．1％．大田试验虫口减退率为75．6％，两种试验结果基本一致．
In May 1993, the first generation of Masson Dendrolimus punctatus was treated with polyhedrosis virus in Chengcun Town, Yangxi County, Guangdong Province. In the demonstration experiment, the virus doses of the three treatments were 15GPIB / hm2, 75GPIB / hm2 and 150GPIB / hm2, respectively, and the rates of reduction of the population were 41.3%, 75.9% and 80.4% respectively. 1%. The rate of decline in field trials was 75.6%. The results of the two tests were basically the same.