The Potential Of Trap And B.arrier Cropping To Decrease D ensities Of The Whitefly Bemisia Tabaci Med On Cotton In China
文献类型: 外文期刊
作者: Lovei, Gabor L.;Yang, Nian:Wan;Zhang, Xiao:Ming;Ferrante, Marco;Ferrante, Marco;Wan, Fang:Hao;Lovei, Gabor L.;Zhang, Xiao:Ming
作者机构:
关键词: non-chemical pest control; habitat manipulation; push-pull system; intercropping; perimeter pattern; tobacco whitefly
期刊名称: PEST MANAGEMENT SCIENCE
ISSN: 1526-498X
年卷期: 2019 年
页码:
摘要: BACKGROUND The whitefly, Bemisia tabaci (Gennadius) MED, is a destructive insect pest in many countries of the world. Although the use of insecticides for controlling B. tabaci has been effective to a certain extent, pesticides are not an acceptable long-term control method, and alternatives should be sought. This paper focuses on the possibility of controlling B. tabaci on cotton using trap and barrier crops. We performed field experiments using cantaloupe (Cucumis melo) and sunflower (Helianthus annuus) as trap crops, and maize (Zea mays) as a barrier crop in various configurations in Hebei Province, North China. RESULTS The main activity periods were shortest on cantaloupe and ranged between 16-32 days for immatures and 14-33 days for adults. Adult whitefly densities were not significantly reduced by any treatment. During the main activity period, maize intercropping reduced densities of immature whiteflies from 24.2 individuals (ind.) 100 cm(-2) to 4.0 ind.100 cm(-2), but all treatments were successful in significantly reducing immature B. tabaci densities. This resulted in a significant yield premium. CONCLUSIONS Intercropping reduced B. tabaci densities on cotton more than perimeter planting. Maize was more effective to reduce densities of immature whiteflies on cotton than cantaloupe. The results will contribute to the development of more effective and practical approaches for protecting cotton from B. tabaci and lowering chemical pressure on this crop. (c) 2019 Society of Chemical Industry
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