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美洲斑潜蝇对四季豆的危害损失及防治指标研究
Damage loss and control threshold of Liriomyza sativae Blanchard on snap bean
【摘要】 研究结果表明 ,美洲斑潜蝇危害四季豆时 ,虫情指数与产量损失率之间有极显著正相关 ,其直线回归方程为 Y=0 .7399+ 1.0 185 X,r =0 .9980 * * 。防治指标 :当虫情指数为 9.5 0 4~ 19.72 5时 ,必须用药防治 ,控制其为害。
【Abstract】 The study result showed that the correlation between pest damage index and yield loss ratio was significantly positive when snap bean was damaged by Liriomyza sativae Blanchard, with the linear regression equation of Y=0.7399+1.0185X, r=0.9980 ** . The pest had to be controlled by pesticide when the pest damage index was up to 9.504-19.725.
- 【文献出处】 华东昆虫学报 ,Entomological Journal of East China , 编辑部邮箱 ,2001年02期
- 【分类号】S436.43
- 【被引频次】2
- 【下载频次】53