Predicting models of population dynamics or cotton aphid

Chinese Journal of Applied Ecology ›› 1994, Vol. 5 ›› Issue (3): 287-291.

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Predicting models of population dynamics or cotton aphid

Wu Kongming¹, Zhao Bingyi²

1. Plant Protection Institute, Henan Agricultural Academy of Sciences, Zhengzhou 450002;
2. Laboratory Centre, Henan Agricultural Academy of Science, Zhengzhou 450002

Received:1992-04-22 Revised:1994-03-02 Online:1994-07-25 Published:1994-07-25

Abstract

Abstract: Population dynamics of cotton aphid in cotton fields of Henan Province in 1980-1989 are analyzed in this paper. The results show that the damage period of cotton aphid is at the seedling and flowering-bolting stages of cotton. With consideration of environmental factors (temperature, relative humidity and rainfall) and different damage stages, two fuzzy predicting models are established and good predicting result are obtained.

Key words: Cotton, Cotton aphid, Fuzzy analyse, Predicting model

Wu Kongming, Zhao Bingyi. Predicting models of population dynamics or cotton aphid[J]. Chinese Journal of Applied Ecology, 1994, 5(3): 287-291.

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Predicting models of population dynamics or cotton aphid

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