摘要
Ptilinus fuscus is distributed in 46 counties of 8 regions in Gansu Province.It seriously damages poplar.This insect has one generation every two years depending on elevation and climate.The adult emerges from May to July in Kangle County and from June to July in Weiyuan County.The larvae hibernate from October to March of next year,and damage trees from April to September,especially in April and May.The larva has 7 instars:the pupal period is from May to July.The emergence lasts 21 days on average continuously.Brushing the timber 3 times with mothproof liquid can poison the larva,and the controlling effects can reach 95%.Brushing the mothproof protective membrane can completely inhibit the adult insect from attack the timber.
Ptilinus fuscus is distributed in 46 counties of 8 regions in Gansu Province.It seriously damages poplar.This insect has one generation every two years depending on elevation and climate.The adult emerges from May to July in Kangle County and from June to July in Weiyuan County.The larvae hibernate from October to March of next year,and damage trees from April to September,especially in April and May.The larva has 7 instars:the pupal period is from May to July.The emergence lasts 21 days on average continuously.Brushing the timber 3 times with mothproof liquid can poison the larva,and the controlling effects can reach 95%.Brushing the mothproof protective membrane can completely inhibit the adult insect from attack the timber.
出处
《林业科学研究》
CSCD
北大核心
2000年第2期209-212,共4页
Forest Research
基金
甘肃省林业厅 1 993~ 1 996科技项目!"梳角窃蠹防治研究"部分内容
关键词
梳角窃蠹
生物学特性
木材防蛀液
防治
森林害虫
Ptilinus fuscus
biological characterisitics
mothproof liquid
mothproof protective membrane
insect control
