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研究和分析了赤眼蜂大面积防治不同发生类型区(丘陵区、山区和越冬代、第三代)马尾松毛虫的试验情况,发现利用赤眼蜂对丘陵区越冬代马尾松毛虫进行规模防治效果最佳,其次是山区越冬代马尾松毛虫。对第三代松毛虫的防治,效果不理想。
Trichogramma dendrolimi was used to control the population of Dendrolimus punctatus in the hilly areas during the large-scale control of Dendrolimus punctatus in different types (hilly, mountainous and overwintering, third generation) The effect is best, followed by the wintering deer in the mountainous area. The third generation of pine caterpillar control, the effect is not satisfactory.