摘要
与取食马尾松的马尾松毛虫相比,取食湿地松、火炬松的马尾松毛虫死亡率高、发育期长、食量少、蛹重轻、雌性比低、产卵量少。多数情况下种群世代增长呈负值。湿地松林的马尾松毛虫一年二代,没有观察到第三代。湿地松林的第三代虫是由马尾松林的松毛虫飞迁来的。合理营造马尾松、湿地松(火炬松)混交林是综合防治马尾松毛虫的有效途径。
Abstract: Dendrolimus punctatus Walker feeding on Pinus elliottii Eng. and P. taeda L. were higher mortality, longer development period, lighter cocoon weight, lower sex rationand fewer number of eggs compared with those of on P. massoniana Lamb. In many casses,population growth of D. punctatus was negative on P. elliottii and P. taeda, D. punctatuswere two generations a year in P. elliottii stands and the third generation found on it wasinvasion from P. massoniana stands. The better way to integrated control of D. punctatusis to reasonable make P. massoniana and P. elliottii or P. taeda mixed forests.
出处
《浙江林业科技》
北大核心
1990年第2期11-19,共9页
Journal of Zhejiang Forestry Science and Technology
