Ahmed Nazeer, Chamila Darshanee Hewa Lunuwilage, Fu Wen-Yan, Hu Xiang-Shun, Fan Yongliang, Liu Tong-Xian
State Key Laboratory of Crop Stress Biology for Arid Areas, Yangling, Shaanxi, China.
Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, Shaanxi, China.
J Econ Entomol. 2018 Apr 2;111(2):909-916. doi: 10.1093/jee/tox354.
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 Brassica vegetables 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.
桃蚜，烟蚜（Myzus persicae (Sulzer)）（半翅目：蚜科），是世界上许多作物的重要害虫，也是100多种植物病毒的传播媒介。它是中国北方大白菜等十字花科蔬菜的主要害虫。化学防治在全球被广泛用于防治这种蚜虫；然而，杀虫剂抗性的发展一直是种植者面临的主要障碍。大白菜对桃蚜的寄主植物抗性尚未见报道。在本研究中，我们调查了7个大白菜品种对桃蚜的抗性类别。这些品种的抗性类别包括与叶色和蜡质含量相关的抗生性、抗虫性和耐受性。‘元宝’品种对蚜虫具有抗生性和耐受性。与其他6个品种相比，桃蚜在‘元宝’上的内禀增长率（rm）较低。‘元宝’对蚜虫的抗生性也最强。蚜虫更喜欢‘庆安80’，其叶色的波长（绿色）最高。‘元宝’的蜡质含量最高，与桃蚜的偏好呈显著负相关。大白菜品种‘元宝’对桃蚜具有抗性，可用于田间蚜虫综合防治（IPM）方案的制定。
