中国生物防治学报2017，Vol.33Issue(6)：803-810,8.DOI:10.16409/j.cnki.2095-039x.2017.06.013
绿眼赛茧蜂生物学特性及其对草地螟的控害作用
Biology and Bio-control Potential of Zele chlorophthalmus (Hymenoptera:Braconidae), a Parasitoid of Beet Webworm, Loxostege sticticalis (Lepidoptera:Crambidae)
摘要
Abstract
Zele chlorophthalmus (Spinola) (Hymenoptera:Braconidae) is a solitary endo-parasitoid of larval beet webworm,Loxostege sticticalis L.(Lepidoptera:Crambidae).Life history characteristics and bio-control potential of this parasitoid were investigated at 23 ℃,RH 70％± 5％,and photoperiod of 16L∶8D by using the 3rd instar L.sticticalis as host.Our results showed that Z.chlorophthalmus needed 14.7,14.5 and 30.1 days,respectively,to complete development of egg and larvae,pre-pupae and pupae,and full generation.Cocoon weighed 18 mg in average.Adults emerged predominantly from 06:00 to 14:00 h during a day and male adults emerged 2 days earlier than females.Females mated soon after emergence with a mating duration of 59-168 s.Oviposition/parasitization began soon after mating and peaked at the 3rd and 7th day during the 11 days of oviposition period.Totally,104 larvae could be successfully parasitized by a female during her 15.2 day lifespan,which was shorter than males (19.0 days).Number of host larvae parasitized by Z.chlorophthalmus increased while parasitism rate decreased with host density increased from 5 to 30 larvae/650 mL jar,which could be well described by the model of Holling type Ⅱ.Head width,body length and weight of the host larvae at 6th and 12th days after parasitization,and total food consumed by the parasitized host were significantly less than those of the unparasitized larvae.The biology and bio-control potential of Z.chlorophthalmus were finally compared and discussed with other wasp species,especially those parasitizing L.sticticalis.关键词
绿眼赛茧蜂/草地螟/生物学/寄生率/功能反应Key words
Zele chlorophthalmus/Loxostege sticticalis/biological characteristics/parasitism rate/functional responses分类
农业科技引用本文复制引用
李倩,程云霞,罗礼智,杜芹,江幸福,张蕾..绿眼赛茧蜂生物学特性及其对草地螟的控害作用[J].中国生物防治学报,2017,33(6):803-810,8.基金项目
国家公益性行业(农业)科研专项(201303057) （农业）
国家国际科技合作专项(2014DFR31250) （2014DFR31250）
国家自然科学基金(31672019,31371947,31301656) （31672019,31371947,31301656）
