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本文研究了落叶松针叶质量对落叶松毛虫生殖、生存及发育速度的影响．结论是：落叶松毛虫成虫有选择产卵环境的趋向，发育状况优良、产卵能力强的雌虫更倾向于在落叶松针叶质量优良的未受害或受害轻微的林分中产卵，而发育状况差、产卵能力弱的雌虫则倾向于在原危害区产卵；饲喂不同林龄针叶的落叶松毛虫产卵量差异显著，取食林龄小于４０ａ针叶的落叶松毛虫的产卵量比取食林龄大于４０ａ的高；饲喂不同危害区落叶松针叶的落叶松毛虫１～２龄幼虫，其幼虫发育速度差异不显著，而幼虫死亡率差异显著，取食严重危害区落叶松针叶的１～２龄幼虫死亡率明显高于取食轻度危害区的．
In this paper, the effects of coniferous larch quality on reproductive, survival and developmental velocities of Dendrolimus sl. The conclusion is: adults of Dendrolimus sloth caterpillar have the tendency to choose the environment for spawning. The development status is good, and the females with strong oviposition ability are more likely to lay their eggs in the unspoiled or damaged minor stands of larch needles. Females with poor spawning ability and spawning ability tended to lay eggs in the original damaged area. There was significant difference in spawning amount of larch caterpillars fed on needles of different ages, taking the production of larch caterpillar less than 40 years old The larvae of the 1st and 2nd instars of Larix principis-rupprechtii fed different larch coniferous larvae had no significant difference in the larval development rate but had significant differences in the mortality of larvae, Mortality of larch larvae in larch needles was significantly higher than that in lightly harvested areas.