摘要
对云杉梢斑螟在大通地区危害情况调查研究,结果表明,纯林、低密度林分和人口高密度区云杉梢斑螟的虫口密度、有虫枝率高,并提出了防治建议。
Harm of Diorictria schuetzella was investigated and studied in Datong region. The results showed, the insect density, insect rate in branch of Diorictria schuetzella were high in pure stand, low density stand and stand near human high density region. And some control measures were suggested.
出处
《青海农林科技》
2008年第4期23-25,共3页
Science and Technology of Qinghai Agriculture and Forestry
关键词
云杉梢斑螟
环境
防治
危害
Diorictria schuetzella
Environment
Control
Harm
