| 防治策略对苹果园天敌昆虫群落结构的影响 |
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| 引用本文： | 李建荣,石万成.防治策略对苹果园天敌昆虫群落结构的影响[J].西南农业大学学报,1992,14(6):507-512. |
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| 作者姓名： | 李建荣 石万成 |
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| 作者单位： | 四川省农科院植保所，四川省农科院植保所 |
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| 摘 要： |
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| 关 键 词： | 苹果园 天敌 群落结构 害虫 防治 |
THE INFLUENCES OF MANAGEMNT STRATEGIES ON THE COMMUNITY STRUCTURE OF NATURAL ENEMIES ON APPLE PLANTATIONS |
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| Li Jianrong,Shi Wangcheng Institute of Plant Protection,Sichuan Academy of Agric. Sci.THE INFLUENCES OF MANAGEMNT STRATEGIES ON THE COMMUNITY STRUCTURE OF NATURAL ENEMIES ON APPLE PLANTATIONS[J].Journal of Southwest Agricultural University,1992,14(6):507-512. |
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| Authors: | Li Jianrong Shi Wangcheng Institute of Plant Protection Sichuan Academy of Agric Sci |
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| Abstract: | In the present study,22,13 and 19 species of natural enemies of the pest insects of ap- ple trees were observed in natural control,chemical control and integrated pest manage- ment(IPM)system plantations,respectively.The peak of occurrence of natural enemies in the IPM plantation coincided with that in the natural control plantation.The populations amount of the insect pests and their primary natural enemies showed a highly significant correlation(P=0.01).On the chemical control plantation,the population amount of Chrysopa sinica Tieder and Myzus malsuctus Matsumura was significantly correlated (P=0.05).No significant correlation existed between the other pests and natural enemies. The natural control plantation had the greatest diversity index,(H')followed by the IPM systum plantation and chemical control plantation.For the index C,the sequence was chemical control plantation>IPM plantation>natural control plantation.The three in- dexes of H',evenness(E)and C showed minor fluctuation in natural control plantation and IPM plantantion,while in chemical control plantation,the fluctuation appeared greater. Niche overlap of insect pests and their natural enemies was highest in the IPM system plan- tation. |
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| Keywords: | fruit tree pest insects preventive treatment strategies utilization of natural enemies community |
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