Acta Agriculturae Boreali-Sinica

ACTA AGRICULTURAE BOREALI-SINICA ›› 2004, Vol. 19 ›› Issue (3): 106-109. doi: 10.3321/j.issn:1000-7091.2004.03.027

Special Issue: Corn；

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Studies on the Spatial Pattern of Overwintering Larvae of Dichocrocis punctiferalis Guenee in the Corn Fields

ZHOU Hong-xu1, SUN Li-ning2, ZHENG Bai-ping1, ZHAO Chun-sheng1   

  1. 1. Dept. of Plant Protection, Laiyang Agriculture College, Laiyang 265200, China;

    2. Laiyang Agricultural Bureau, Laiyang 265200, China;

    3. Laiyang Seed Company, Laiyang 265200, China
  • Received:2004-03-02 Published:2004-09-28

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Abstract: The spatial pattern of overwintering larvae of Dichocrocis punctiferalis Guenee was examined by the aggregation indices and liner regression analysis in the corn field of vertical and horizontal direction. The re-sults showed that the pest hibernates mostly in ear joint of corn and its spatial pattern belonged to the aggregated distribution both in vertical and horizontal direction. The aggregation was caused by the environmental factors. Among the regression analysis, the liner related degree of Talor regression model was the best.

Key words: Dichocrocis Gurcctiferalis Guenee, Spatial pattern,Aggregatiori indices,Corn field

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Cite this article

ZHOU Hong-xu, SUN Li-ning, ZHENG Bai-ping, ZHAO Chun-sheng. Studies on the Spatial Pattern of Overwintering Larvae of Dichocrocis punctiferalis Guenee in the Corn Fields[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(3): 106-109. doi: 10.3321/j.issn:1000-7091.2004.03.027.

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