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Your Position :Home->Past Journals Catalog->2015年52 No.3

Preferences for different cotton varieties and the population dynamics of cotton mirids
Author of the article:SHI Ji-Zhe** ZHU Wei-Long ZHENG Yuan-Yuan LI Zhen ZHANG Qing-Wen LIU Xiao-Xia***
Author's Workplace:(Department of Entomology, China Agricultural University, Beijing 100193, China
Key Words:mirid bugs, cotton varieties, select preference, population dynamics, temperature
Abstract:  [Objectives]  To investigate the preference of cotton mirids for different cotton varieties and the population dynamics of these pests. [Methods]  12 cotton varieties were planted in a random plot design in a field in 2013 and 2014. The population dynamics of the main cotton mirids, Adelphocoris suturalis (Jakovlev), Adelphocoris fasciaticollis (Reuter), and Apolygus lucorum (Meyer-Dür ), were then investigated on these plants and the relationship with temperature evaluated. [Results]  All three mirids displayed the highest preference for Shiyaxi 1 and the least preference for N73DeltapineFO. Cotton mirids appeared in cotton fields in early July. Their population density peaked at the end of July and early August, and was lowest at the end of September. The population density of mirids increased with increasing temperature within the range of 17-35.  [Conclusion]  Cotton mirids prefer some cotton varieties to others and resistant cotton varieties should be planted in areas with a high population density of mirids.

 

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