Trends and Causes of Occurrence of Dendrolimus punctatus in Yongkang City
Author(s): ZHAO Meizuo
Pages: 43-44,58
Year: 2002 Issue: 3
Journal: JOURNAL OF ZHEJIANG FORESTRY SCIENCE AND TECHNOLOGY
Keyword: 永康; 马尾松毛虫; 发生趋势; 原因分析;
Abstract: 通过对永康市历年来松毛虫发生危害及防治情况的调查和分析,发现永康市的松毛虫发生周期延长,为害面积缩小,爆发期延时缩短,分析了其形成原因.
Pages: 43-44,58
Year: 2002 Issue: 3
Journal: JOURNAL OF ZHEJIANG FORESTRY SCIENCE AND TECHNOLOGY
Keyword: 永康; 马尾松毛虫; 发生趋势; 原因分析;
Abstract: 通过对永康市历年来松毛虫发生危害及防治情况的调查和分析,发现永康市的松毛虫发生周期延长,为害面积缩小,爆发期延时缩短,分析了其形成原因.
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