沈阳市城区园林树木病虫害的调查

Survey and Analysis on Pests of Garden Trees in Shenyang

沈阳市城区园林树木病虫害种类及发生现状调查结果表明:病虫害在和平、沈和、皇姑、大东、铁西、东陵和于洪等地区分布普遍。共发现为害园林树木主要害虫37种,其中叶部害虫14种、枝干部害虫19种、根部害虫4种;主要病害15种,其中叶部病害8种,茎干部病害6种、根部病害1种。树木长期生长不良,栽培密植、树种间不合理配植,不遵守适地适树原则等是沈阳市区内园林树木发生病虫害的主要原因。

The survey on plant diseases and insect pests of Shenyang urban garden trees Heping,Shenhe,Huanggu,Tiexi, Dongling and Yuhong district a wide distribution of tree＇s disease and harmful insect are present.Totally 37 kinds of garden tree main pests including 14 kinds of leaf pests, 19 kinds of trunk pests, of root pests 4 kinds. Fifteen kinds of diseases were found, including were found, 8 leaf disease, 6 disease trunk, and 1 root disease. There are many reasons for the occurrence of garden tree diseases and insect pests in Shcnyang, such as long time poor growth state, high planting density, unreasonable tree species match, abnormal managements etc.