摘要
通过野外观察思茅松树的松墨天牛产卵刻痕数并对其进行影响因素偏相关分析,揭示了影响产卵刻痕在思茅松上分布的主要因素。寄主生长势是产卵刻痕数量的决定因素,衰弱寄主能够引诱成虫产卵;木段直径是产卵刻痕分布的重要影响因素,直径小于16 cm的木段上,刻痕随直径的增大而增加,且具有显著相关性;树皮厚度是产卵刻痕数量的制约因素,直径大于16 cm的木段上,刻痕随树皮厚度的增厚而减少,但相关性不显著。
The analysis of factors effecting the distribution of oviposition scars was made with field observation and partial correlation analysis. The results showed the hosts＇ growth potential was the determinant, weak hosts attracted more adults to oviposit. The diameter of the bolt was the key factor, the quantity of oviposition scars increased significantly with the growth of diameter when it was less than 16.0 cm. The bark thickness was the restrictive factor, the quantity of oviposition scars decreased insignificantly with the growth of bark thickness when the bolt diameter exceeded 16 cm.
出处
《中国森林病虫》
北大核心
2009年第6期1-2,11,共3页
Forest Pest and Disease
基金
国家林业局重点项目林业科技支撑计划子专题"南亚季风控制区松材线虫病媒介昆虫种类"(2006BAD08A19105)
科技部项目"欧亚松林蛀干害虫信息素管理技术研究"(2006DFA31790)
省级科技公关项目"危险性松树萎蔫病的检测
预防
防治技术"(2005NG03)
关键词
松墨天牛
产卵刻痕
生长势
木段直径
树皮厚度
Monochamus alternatus
oviposition scar
growth potential
bolt diameter
bark thickness
