中国生物防治学报2019，Vol.35Issue(2)：167-172,6.DOI:10.16409/j.cnki.2095-039x.2019.02.001
不同品系赤眼蜂对桃蛀螟卵的寄生选择性
Oviposition Preference of Different Trichogramma Strains for Eggs of Conogethes punctiferalis (Guenée)
摘要
Abstract
Yellow peach moth, Conogethes punctiferalis, has became one of the major pests of summer corn ear in Huang-Huai-Hai region in China in recent years. The damage directly reduces the quality and yield of corn. It is difficult to control C. punctiferalis with chemical spray due to the larvae boring into the corn ear. In order to select the suitable Trichogramma strains for control of C. punctifueralis, we compared the parasitism and suitability of eleven strains of T. ostriniae, T. dendrolimi and T. chilonis, which are used widely in biological control of lepidopterous pests, on eggs of C. punctiferalis. The Sd and Xd strains of T. dendrolimi and the So and Zo strains of T. ostriniae showed higher performance than other strains in both choice and non-choice tests. The number of eggs parasitized by Sd, Xd, So and Zo strains was 14.35, 15.05, 14.65, and 13.45 in choice tests, and 15.8, 16.1, 13.8, and 13.1 in non-choice tests, respectively. The emergence rate, female rate of progeny, and the number of progeny per female ranged between 93.64％—98.37％, 73.10％—89.39％, and 13.18—18.40, respectively. Overall, we could draw a conclusion that Sd, Xd, So and Zo could be used as candidates for control of C. puntiferalis in field trial.关键词
桃蛀螟/赤眼蜂/寄生选择性Key words
Conogethes punctiferalis/Trichogramma/oviposition preference分类
农业科技引用本文复制引用
陈万斌,何康来,王勤英,王振营..不同品系赤眼蜂对桃蛀螟卵的寄生选择性[J].中国生物防治学报,2019,35(2):167-172,6.基金项目
国家重点研发计划 (2018YFD0200602) （2018YFD0200602）
国家玉米产业技术体系 (CARS-02) （CARS-02）
