上海地区草坪害虫的发生为害初步调查
Preliminary observation on damage and occurrence of lawn pests in Shanghai.
张平华;李跃忠
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DOI：
作者单位：1.上海奉贤园林绿化工程有限公司,上海201400;2.上海市园林科学研究所,上海200232
中文关键词：草坪害虫;发生;为害;调查
英文关键词：lawn pest; occurrence; damage
中文摘要：据作者初步调查 ,2种草坪害虫 :稻切叶野螟Psaralicarsisalis (Walker)和灰翅夜蛾Spodopteramauritia (Boisduval)在上海均以幼虫在土下越冬 ,1年发生 5代 ,后期存在世代重叠现象。灰翅夜蛾虫口密度一直到 7月份都较低 ,8月份虫口密度上升很快 ,所以在上海地区第
英文摘要：Psara licarsisalis (Walker) and Spodoptera mauritia (Boisduval) are th e major lawn pests in Shanghai. They have 5 generations in a year and overwinte as larvae. The generations overlap in the later period in a year. The populatio n density