锈色粒肩天牛幼虫在国槐树干上的分布及虫口预测模型  

Distribution of Apriona swainsoni larva on the trunk of Sophora japonica and the establishment of its population prediction model

作　　者：王晓红[1] 杨忠岐[2] 张彦龙[2] 唐艳龙[2] 

机构地区：[1]河北联合大学,河北唐山063009 [2]中国林业科学研究院森林生态环境与保护研究所国家林业局森林保护学重点实验室,北京100091

出　　处：《中国森林病虫》2015年第1期20-22,共3页Forest Pest and Disease

摘　　要：通过解剖国槐Sophora japonica受害木,结合林间调查,分析锈色粒肩天牛Apriona swainsoni幼虫在国槐树干上的分布,建立幼虫虫口数量预测数学模型。结果表明,锈色粒肩天牛幼虫主要分布于国槐主干2 m以下的位置,中、老龄幼虫主要危害寄主的边材部位。以新排粪孔与解剖木实际带虫数量建立4个虫口预测模型方程,经方差检验均可靠有效。To analyze the distribution of A. swainsoni larva on Sophora japonica and establish mathe- matical model for predicting the larva population, infested tree dissection and investigation in forest was made. The results showed that A. swainsoni larvae mainly lived in the trunk below 2 m, the middle and aged larvae mainly damaged on the host sapwood. Based on the correlation between new excretion holes and the actual number of insect in the anatomized wood, four population prediction models were estab- lished, and the variance test was reliable and effective.

关 键 词：锈色粒肩天牛 垂直分布 水平分布 虫口预测 

分 类 号：S763.38[农业科学—森林保护学]