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27 January 2018 Resistance of Seven Cabbage Cultivars to Green Peach Aphid (Hemiptera: Aphididae)
Nazeer Ahmed, Hewa Lunuwilage Chamila Darshanee, Wen-Yan Fu, Xiang-Shun Hu, Yongliang Fan, Tong-Xian Liu
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Abstract

The green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae), is an important pest of many crops in the world and a vector of more than 100 plant viruses. It is a major pest of Brassicavegetables such as Chinese cabbage in northern China. Chemical control is extensively used to manage this aphid around the world; however, development of insecticide resistance has been a major obstacle facing growers. Host plant resistance in Chinese cabbage against M. persicae has not been reported yet. In this study, we investigated the resistance categories in seven Chinese cabbage cultivars against M. persicae.The resistance categories of these cultivars included antixenosis, antibiosis, and tolerance related to leaf color and wax content.The cultivar ‘Yuanbao’ had antibiotic and tolerance effects on the aphid.The rate of intrinsic increase (rm) of M. persicae was lower on Yuanbao compared with the other six cultivars. Yuanbao also had the highest antibiosis against the aphid.The aphid preferred ‘Qingan 80’, which had the highest wavelength (green) in leaf color.The highest wax content was found in Yuanbao, which had a significantly negative correlation with the preference of M. persicae.The cabbage cultivar Yuanbao was resistant to M. persicae and could be used in the development of integrated pest management (IPM) programs against the aphid in the field.

© The Author(s) 2018. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Nazeer Ahmed, Hewa Lunuwilage Chamila Darshanee, Wen-Yan Fu, Xiang-Shun Hu, Yongliang Fan, and Tong-Xian Liu "Resistance of Seven Cabbage Cultivars to Green Peach Aphid (Hemiptera: Aphididae)," Journal of Economic Entomology 111(2), 909-916, (27 January 2018). https://doi.org/10.1093/jee/tox354
Received: 15 August 2017; Accepted: 27 November 2017; Published: 27 January 2018
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KEYWORDS
cabbage cultivar
green peach aphid
leaf color
resistance assessment
wax content
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