Pest Management Science (2020) 76, 366-374

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Xiao-Ming Zhang, Gabor L. Lövei, Marco Ferrante, Nian-Wan Yang and Fang-Hao Wan (2020)
The potential of trap and barrier cropping to decrease densities of the whitefly Bemisia tabaci MED on cotton in China
Pest Management Science 76 (1), 366-374
Abstract:
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Gábor L. Lövei

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Bemisia tabaci biotype MED Cotton (Gossypium) China (NE)