| 棉铃虫自然种群生命表的研究及其应用 |
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| 引用本文： | 吴子江,薛志华,张治.棉铃虫自然种群生命表的研究及其应用[J].生态学报,1993,13(2):185-193. |
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| 作者姓名： | 吴子江 薛志华 张治 |
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| 作者单位： | 江苏省南通植保站，江苏省南通植保站，江苏省南通植保站 南通 226300，南通 226300，南通 226300 |
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| 摘 要： | 本文通过跟踪观察24593个有效样本,归纳为24个消亡因子,组建了18个世代生命表和3个平均生命麦。剖析了长江下游棉区棉铃虫自然种群数量变动规律,K-值分析和组分(M(si)值)分析说明种群数量变动最大的阶段是在生命前期(即卵至2龄期)。b,r~2值综合分析法表明影响第2、3、4代种群数量消亡的关键虫期分别为4龄、6龄和蛹期。b值分析和K-值图解表明影响种群数量消亡的关键因子:2代为齿唇姬蜂和土壤含水量、风雨冲刮,3代为胡蜂和三突花蛛、小花蝽,4代为滞育和随蕾花脱落、三突花蛛。参考Morris(1963)关键因子逼近法探索了棉铃虫数量预测式。
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| 关 键 词： | 棉铃虫 生命表 预测 |
| 收稿时间： | 1991/11/7 0:00:00 |
| 修稿时间： | 1992/5/13 0:00:00 |
A STUDY ON THE NATURAL POPULATION LIFE TABLEOF COTTON BOLLWORM AND ITS APPLICATIONIN THE PEST PREDICTION |
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| Wu Zi-Jiang.A STUDY ON THE NATURAL POPULATION LIFE TABLEOF COTTON BOLLWORM AND ITS APPLICATIONIN THE PEST PREDICTION[J].Acta Ecologica Sinica,1993,13(2):185-193. |
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| Authors: | Wu Zi-Jiang |
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| Institution: | The Plant Protection Station of Nantong County; 226300 |
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| Abstract: | In this paper, 18 generation life tables and 3 average life tables of cotton bollworm (Heliothis armigera Hubner) were established in Nantong county, Jiangsu province, by continuous observation of 24593 effective samples. The results showed that there were 24 main factors to fluctuate natural population of this pest insect on the lower reaches region of Changjiang River. The results of lvalue analysis and composition analysis showed that the most fluctuating dynamics in population density occured in the ear... |
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| Keywords: | Heliothis armigera Hubner life table numerical prediction |
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