| 菜豆上美洲斑潜蝇的防治指标研究 |
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| 引用本文： | 周福才,陈丽芳,陆自强,祝树德,时敏. 菜豆上美洲斑潜蝇的防治指标研究[J]. 长江蔬菜, 2001, 0(6): 32-33 |
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| 作者姓名： | 周福才 陈丽芳 陆自强 祝树德 时敏 |
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| 作者单位： | 江苏扬州大学农学院植保系, |
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| 摘 要： | 美洲斑潜蝇3个龄期的幼虫在菜豆上的蛀食面积分别为7.7％,25.6%和66.7%，3龄幼虫进入暴食阶段，也是主要的为害龄期。开花期与结荚期的叶片损失与产量损失呈正相关，每叶虫量与产量的关系分别为：y=0.0347x^2-1.3332x 19.354和y=0.0065x^2-0.178x^2 0.4852x 17.604，经济阈值分别为百叶虫量536头和450头。
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| 关 键 词： | 美洲斑潜蝇 菜豆害虫 产量损失 防治指标 |
| 修稿时间： | 2001-01-15 |
tudy on American Leaf Miner for Damage and Control Index of Kidney Bean |
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| Zhou Fucai,Chen Lifang,Lu Zi qiang,Zhu Shu de,Shi Min. tudy on American Leaf Miner for Damage and Control Index of Kidney Bean[J]. Journal of Changjiang Vegetables, 2001, 0(6): 32-33 |
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| Authors: | Zhou Fucai Chen Lifang Lu Zi qiang Zhu Shu de Shi Min |
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| Abstract: | Damaged areas was7.7percent,25.6percent and66.7percent ,which American leaf miner larvae of three larval instars damaged kidney bean.The third larval instar is main damaging stage.The yield damage is positive related to leaves damage in flowering and podding season.The relationship of the number of larvae of per leaf and yield is y=0.0347x 2 -1.3332x+19.354,y=0.0065x 3 -0.178x 2 +0.4852x+17.604,and economical final vlaue is per100leaves536and450larvae. |
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| Keywords: | American leaf miner Kidney bean Yield Control index |
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