美洲斑潜蝇对四季豆的危害损失及防治指标研究
Bean yield loss caused by Liriomyza sativae and controld threshold.
赵刚;刘培廷;陆道训
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DOI：10.7679/j.issn.2095-1353.2001.066
作者单位：安徽省六安地区植保站,237001
中文关键词：美洲斑潜蝇;危害损失;防治指标
英文关键词：Liriomyzae sativae; yield loss; action threshold
中文摘要：采取自然感虫与药剂控制虫量相结合的方法 ,人为造成 6个不同虫情梯度 ,分析虫情指数与产量损失率之间的关系。结果表明 ,虫情指数与产量损失率之间成正相关 ,回归方程为Y =1008+0.7661X ,再根据经济允许水平求出不同产量水平下的防治指标
英文摘要：The relationship between insect density and bean yield loss caused by Liriomyza sativa was analysed under the natural and artificial conditions.The results showed that the pest population density and bean yield loss were positively correlated and t