锈色粒肩天牛卵在国槐上垂直分布规律的研究  

Vertical Distribution of Apriona swainsoni Eggs on Sophora japonica

作　　者：贺春玲[1] 嵇保中[1] 刘曙雯 

机构地区：[1]南京林业大学森林与环境学院,江苏南京210037 [2]南京中山陵园管理局,江苏南京210014

出　　处：《西北林学院学报》2007年第5期111-113,共3页Journal of Northwest Forestry University

摘　　要：锈色粒肩天牛的卵在被害国槐上的分布研究表明:锈色粒肩天牛产卵数量随胸径的增大而减小;产卵株率随胸径的增大而增大;卵块在树干上的分布数量下段>中段>梢段;树干2 m以下产卵的数量占整株的72.72%,树干在1 m以下的产卵数量占整株产卵总量的38.18%。因此,在虫情调查时可以调查2 m以下的树干来估测全树的产卵密度。适时进行树干基部涂白的方法,可以有效地减轻虫口密度。certical distribution of Apriona swainsoni eggs on infested Sophora japonica was investigated.The results showed that： the bigger the DBH,the less of the eggs in the trees and the more amount proportion of the infested tree;quantity distributions of the eggs in the trunk was in order of lower part 〉 middle part〉 upper part,the amount of eggs in the trunk of less than 2 m accounted for 72.72% of that in the whole trunk;The amount of eggs in the trunk less than 1 m accounted for 38.18% of that in the whole trunk.Based on the results,control measures were given.

关 键 词：锈色粒肩天牛 卵 垂直分布 国槐 

分 类 号：S763.38[农业科学—森林保护学]