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在马尾松毛虫越冬前用很低浓度的敌杀死、灭杀毙药液进行喷施，防治２～３龄马尾松毛虫效果显著，其７２ｈ校正虫口减退率达９７．４９％以上。
Before the Dendrolimus punctatus overwintered with a low concentration of the enemy killed, killed pesticide spraying, prevention and treatment of 2 to 3 years of Dendrolimus punctatus significant effect, 72h correction of insect population over 97.49%.