安徽省广德县迁飞性水稻害虫发生的特点与影响因子
Abundance of migrating insect pests of rice and effective environment in Guangde, Anhui
祝春强;胡长安;刘明熙;李平
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作者单位：安徽省广德县植物保护站,广德242200
中文关键词：单季稻;迁飞性害虫;发生规律;影响因子
英文关键词：one-season rice; migrating insect pest; occurrence dynamics; influence factor;
中文摘要：据调查 ,2002～ 2003年安徽省广德县的稻纵卷叶螟、白背飞虱初见期、迁入主峰日较历年平均值显著提前 ,仍以第 2代为主害代次外 ,大发生年第 1代往往即可达到防治指标 ,第 3代仍居留为害。褐飞虱首次出现第 4代危害单季稻记录。 3种迁飞性害虫在单季稻上居留时间延长 ,危害代次
英文摘要：The dates of starting occurrence and peak immigration of rice leaffolder (RLF) and the whitebacked planthopper (WBPH) in 2002 and 2003 were remarkably earlier than the average of observed years. The second generation was the main generation causing seriou