马尾松不同种源对马尾松毛虫生长发育影响的研究

Study on Effect of Differente Pinus massoniana Provenances on Growth of Dendrolimus punctatus

采用13省(区)14个马尾松种源针叶饲养马尾松毛虫,结果表明,在幼虫死亡率、生长量等方面均存在较大差异。福建大田种源表现最好,对马尾松毛虫具抗虫特性,广西玉林和浙江富阳两种源也是有前途的抗虫种源。河南信阳、湖南桃源和贵州松桃三种源表现最差,是马尾松毛虫的敏感种源。

Experiment on Dendrolimus punctatus Walker feeded in laboratory with thefoliage of 14 Pinus massoniana provenances from 13 provinces showed that the growth rate andmortality, etc. of larva varied significantly with the provenances. The larva feeded with thefoliage from Datian of Fujian province were of the lowest in both survival and growth rate.