| 棉田插种玉米对天敌虫口的影响及其控制害虫的作用 |
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| 引用本文： | 仵光俊,陈志杰,姬明周,董树旺,李怀柱,安建辉,石金成.棉田插种玉米对天敌虫口的影响及其控制害虫的作用[J].中国生物防治,1991(3). |
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| 作者姓名： | 仵光俊 陈志杰 姬明周 董树旺 李怀柱 安建辉 石金成 |
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| 作者单位： | 陕西省动物研究所
(仵光俊，陈志杰，姬明周，董树旺)，渭南市农业推广中心
(李怀柱)，渭南市南七乡
(安建辉)，渭南市南七乡(石金成) |
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| 摘 要： | 陕西渭南地区棉虫的主要天敌有4大类:蜘蛛、瓢虫、食虫蝽和草蛉,以蜘蛛类为最重要。在棉田按每亩120～150株插种玉米,天敌虫口大量增加。插种玉米的棉田天敌数较对照纯棉田增加了62.8～115.7％。对棉铃虫、伏蚜、盲蝽和红铃虫均有明显的控制作用。棉田插种玉米可以诱捕棉铃虫成虫,从而减少第二代该虫产卵,减轻棉花被害。
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| 关 键 词： | 棉田 插种玉米 害虫控制 天敌虫口 |
INFLUENCE OF INTERPLANTING CORN IN COTTON FIELDS ON NATURAL ENEMY POPULATIONS AND ITS EFFECT ON PEST CONTROL IN SOUTHERN SHAANXI |
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| WU Guangjun CHEN Zhijie JI Mingzhou DONG Shuwang.INFLUENCE OF INTERPLANTING CORN IN COTTON FIELDS ON NATURAL ENEMY POPULATIONS AND ITS EFFECT ON PEST CONTROL IN SOUTHERN SHAANXI[J].Chinese Journal of Biological Control,1991(3). |
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| Authors: | WU Guangjun CHEN Zhijie JI Mingzhou DONG Shuwang |
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| Abstract: | Spiders, coccinellids, predatory bugs and lacewings are the four major groups of natural enemies of cotton pests in Weinan area, Shaanxi Province, spiders being the most important group. Field studies showed that interplanting corn at 120-150 plants per mu in cotton fieldsincreased natural enemy populations by 62.8-115.7%, compared with the control fields. This Strategy showed an obvious effect of controlling cotton bollworm, aphids, mirid bugs andcotton pink bollworm. Interplanting com in cotton fields could trap Heliothis moths so as to reduce the second generation eggs and the damages on cotton. |
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| Keywords: | interplanting cotton pests cultural control natural enemy population |
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