中国生物防治学报2025，Vol.41Issue(4)：737-744,8.DOI:10.16409/j.cnki.2095-039x.2025.01.010
棉蚜蚜小蜂对茄子和青椒上桃蚜的寄生偏好
Preference of Aphelinus varipes(Hymenoptera:Aphelinidae)for Parasitizing Myzus persicae(Hemiptera:Aphididae)on Eggplant and Green Pepper
摘要
Abstract
Aphelinus varipes is an important parasitoid of aphids.Clarifying its preference for eggplant and green pepper will contribute the large-scale breeding of the wasp.Leaf disc and whole plant method were used to compare the parasitism of A.varipes on eggplant and green pepper under no-choice(single host plant)and choice(mixed host plants)conditions with different densities of Myzus persicae.The results showed that,under no-choice conditions,the parasitism rates of aphids on eggplant were significantly higher than those on green pepper by both leaf disc and whole plant method.At the density of 1 wasp per cage by leaf disc method,the number of parasitized aphids on eggplant and green pepper were 82.40 and 55.40,respectively.The number of parasitized aphids gradually increased with increasing wasp density.At the density of 4 and 5 wasps per disc,the number of parasitized aphids on eggplant were 231.45 and 234.20,respectively,and on green pepper,150.95 and 147.70,respectively,no significant differences were detected between the two densities.With the whole plant method,the number of parasitized aphids was the least at the density of 10 wasps per plant,with 388.25 on eggplant and 275.05 on green pepper,and reached the highest at the density of 40 wasps per plant,with 674.25 and 590.10 on eggplant and pepper,respectively.Under choice conditions,the parasitism rates of M.persicae on eggplant was significantly higher than those on green peppers with both leaf disc method(68.61％and 31.39％,respectively)and whole plant method(60.08％and 39.92％,respectively).The average emergence rate of A.varipes on eggplant(82.79％)was significantly higher than that on green pepper(73.76％)with leaf disc method,but was not significantly different between the two plants with whole plant method,which reached over 90％.Therefore,the aphids with eggplant as host plant are more suitable for the growth of A.varipes.关键词
棉蚜蚜小蜂/寄主植物/桃蚜/寄生偏好Key words
Aphelinus varipes/host plants/Myzus persicae/parasitic preference分类
农业科技引用本文复制引用
方美娟,何晓庆,宋凯,刘冬,张恒,王玉波..棉蚜蚜小蜂对茄子和青椒上桃蚜的寄生偏好[J].中国生物防治学报,2025,41(4):737-744,8.基金项目
河北省重点研发计划(21326501D) （21326501D）
