中国生物防治学报2017，Vol.33Issue(5)：575-583,9.DOI:10.16409/j.cnki.2095-039x.2017.05.001
温度对绿眼赛茧蜂寄生率及生长发育的影响
Effect of Temperature on Parasitism Rate and Life History Parameters of a Solitary Endoparasitoid, Zele chlorophthalmus (Hymenoptera: Brachonidae)
摘要
Abstract
Abatract:Zele chlorophthalmus (Spinola) is a solitary koinobiont endoparasitoid parasitizing the beet webworm,Loxostege sticticalis L.(Lepidoptera:Crambidae),one of the most destructive insect pests of crop and fodder plant in northern China.Variations in parasitism rate and life history parameters ofZ.chlorophthalmus were investigated at 5 constant temperatures (17,21,25,29,and 33 ℃) by using the 3rd instar L.sticticalis as host.The parasitism rates at 21 and 25 ℃ were significantly greater than those at 17 and 29 ℃,but no parasitism rate was found at 33 ℃.The pupation and emergence rates at 21 and 25 ℃ (＞70％) were all higher than those at 17 and 29 ℃.The pupal weight and adult longevity decreased with increasing temperature.Developmental duration of eggs,larvae,pre-pupae,pupae,and whole generation decreased lineally with increasing temperature within 17-25 ℃ but extended slightly at 29 ℃.The relationship between temperature and developmental rate of Z.chlorophthalmuswas better fitted by the Logistic model (R2=0.935-0.971) than linear model (R2=0.859-0.890).Threshold temperature for eggs and larvae,pre-pupae and pupae,and full generation was 8.7,9.9 and 10.8 ℃,respectively,and thermal constant was 176.0,189.6,and 331.8 day-degrees,respectively.Z.Chlorophthalmus might complete 2-7 generations annually in areas where L.sticticalis occurs and the annual number of generation appeared decreasing with increasing latitude.This data can be useful in determining the potential of using Z.Chlorophthalmus as a biological agent,by optimizing mass rearing and release techniques of the parasitoid.关键词
绿眼赛茧蜂/草地螟/温度/寄生率/生长发育/发育起点温度/有效积温/发生世代Key words
Zele chlorophthalmus/Loxostege sticticalis/temperature/parasitism rate/growth and development/threshold temperature/thermal constant/generation number分类
农业科技引用本文复制引用
李倩,程云霞,罗礼智,雷朝亮,江幸福,张蕾..温度对绿眼赛茧蜂寄生率及生长发育的影响[J].中国生物防治学报,2017,33(5):575-583,9.基金项目
国家公益性行业(农业)科研专项(201303057,201403031) （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）
北京市自然科学基金(6172030) （6172030）
