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从桑天牛成虫补充营养与产卵的关系,探讨杨树工业用材林受桑天牛幼虫为害较重的原因。结果表明,桑天牛成虫必须补充桑科植物营养,才能产卵繁殖后代;桑天牛成虫嗜食桑科植物,但却喜欢在杨树枝条上产卵,这就造成了杨树易受幼虫蛀害。
The relationship between nutritional supplementation and spawning of adults of adult Morus alba was discussed, and the reasons for the heavier damage of commercial timber plantation larvae were discussed. The results showed that adult Morus alba adults must replenish the mulberry plant nutrition in order to ovipute offspring; mulberry adult molting mulberry plants, but prefer to spawn on the branches of poplar, which resulted in poplar vulnerable to calamity.