| 长豇豆和丝瓜美洲斑潜蝇防治指标研究 |
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| 引用本文： | 曹毅 李人柯. 长豇豆和丝瓜美洲斑潜蝇防治指标研究[J]. 长江蔬菜, 1999, 0(10): 12-13 |
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| 作者姓名： | 曹毅 李人柯 |
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| 作者单位： | 广州市蔬菜科学研究所!510315 |
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| 摘 要： | 连续自然接虫研究表明，长豇豆和丝瓜开花结实期美洲斑潜蝇产量损失与幼虫密度关系分别符合上列方程：Ｙ＝－０．０１１３８＋０．０００３５Ｘ（ｒ＝０．９９５３）；Ｙ＝－０．００５５２７＋０．０００６１Ｘ（ｒ＝０．９６３４）。根据当前价格和防治费用等因素，得出两种蔬菜在开花结实期的美洲斑潜蝇幼虫防治指标分别为百株８８４－１０２９头和１７７２－１９４５头。
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| 关 键 词： | 长豇豆 丝瓜 美洲斑潜蝇 防治指标 |
Research on Control Threshold of American Leaf Miner of Asparagus Bean and Sponge Gourd |
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| Cao Yi, Li Renke, Lin Jinying et al. Research on Control Threshold of American Leaf Miner of Asparagus Bean and Sponge Gourd[J]. Journal of Changjiang Vegetables, 1999, 0(10): 12-13 |
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| Authors: | Cao Yi Li Renke Lin Jinying et al |
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| Affiliation: | Cao Yi; Li Renke; Lin Jinying et al |
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| Abstract: | The results of field trial showed that relationships of the yield loss (Y) and the larvae density(X) of American leaf miner at the flowering and fruiting stage of asparagus bean and sponge gourd were: Y= -0.011 38 + 0.000 35 X(r = 0.995 3),Y = - 0.055 27 + 0. 000 61 X(r = 0. 963 4)respectively. According to the present prices and the control costs, etc, the conrol thresholds of the larvae of the pest at the flowering and fruiting stage of the two kinds of vegetables were 884 ~ 1 029, 1 773 ~ 1945 per 100 plants respectively. |
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| Keywords: | Asparagus bean Sponge gourd American leaf miner Control threshold |
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