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Oviposition Preference of the Cabbage Root Fly towards Some Chinese Cabbage Cultivars: A Search for Future Trap Crop Candidates

Abstract : The development of integrated pest management strategies becomes more and more pressing in view of potential harmful effects of synthetic pesticides on the environment and human health. A promising alternative strategy against is the use of trap crops. Chinese cabbage ( subsp. and subsp. ) is a highly sensitive Brassicaceae species previously identified as a good candidate to attract the cabbage root fly away from other crops. Here, we carried out multi-choice experiments both in the laboratory and in field conditions to measure the oviposition susceptibilities of different subspecies and cultivars of Chinese cabbages as compared to a broccoli reference. We found large differences among subspecies and cultivars of the Chinese cabbage, which received three to eleven times more eggs than the broccoli reference in field conditions. In laboratory conditions, the subspecies did not receive more eggs than the broccoli reference. We conclude that largely prefers to lay eggs on the subspecies of Chinese cabbage compared to the subspecies or broccoli. Some cultivars, which received over ten times more eggs than broccoli in the field, appear especially promising candidates to further develop trap crop strategies against the cabbage root fly.
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https://hal.inrae.fr/hal-03142546
Contributor : Anne-Sophie Grenier <>
Submitted on : Friday, May 28, 2021 - 2:57:53 PM
Last modification on : Wednesday, July 7, 2021 - 4:10:32 PM

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Fabrice Lamy, Laura Bellec, Amélie Rusu-Stievenard, Pauline Clin, Claire Ricono, et al.. Oviposition Preference of the Cabbage Root Fly towards Some Chinese Cabbage Cultivars: A Search for Future Trap Crop Candidates. Insects, MDPI, 2020, 11 (2), pp.127. ⟨10.3390/insects11020127⟩. ⟨hal-03142546⟩

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