›› 2019, Vol. 31 ›› Issue (2): 260-267.DOI: 10.3969/j.issn.1004-1524.2019.02.12

• Plant Protection • Previous Articles     Next Articles

Effects of lunar phase and temperature on population dynamics of adult Pectinophora gossypiella Saunders

YU Chun1, XU Dong2, HUANG Wei3, LEI Minghong3, WAN Peng2, *   

  1. 1. School of Statistics, Jiangxi University of Finance and Economics, Nanchang 330013, China;
    2. Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Diseases, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Science, Hubei Academy of Agricultural Sciences, Wuhan 430064, China;
    3. Anxiang Station for Plant Protection and Quarantine, Anxiang 415600, China
  • Received:2018-07-13 Online:2019-02-25 Published:2019-03-06

Abstract: Activities of adult pink bollworm were monitored by sex pheromone trap during 2012-2015 in Anxiang County of Hunan Province. A robust linear model based on nonconcave penalized regression was applied to investigate the relationship between the number of trapped moths of pink bollworm and two factors, temperature and lunar phase, and to detect the outliers simultaneously due to the presence of outliers in the collected data. The results indicated that there was a significant linear relationship between lunar phase and activities of adult pink bollworm, while no direct association between lunar gravitation and amount of trapped moths was found from the analysis. The weaker the light at night, the more the number of moths trapped by sex pheromone. Furthermore, the analyzed results illustrated that temperature was a definite inhibitory factor on the trapped moths of pink bollworm. Ranged within 15-35 ℃, as the temperature rises, amount of trapped pink bollworm moths tends to drop markedly.

Key words: Pectinophora gossypiella Saunders, lunar phase, temperature, penalized regression, outliers

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