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寄主烟草粉螟冷藏对麦蛾茧蜂适合度的影响

引用本文：韦兰,欧后丁,王秀琴,王博,于晓飞,杨茂发.寄主烟草粉螟冷藏对麦蛾茧蜂适合度的影响.植物保护学报,2023,50(1):119-128

DOI：10.13802/j.cnki.zwbhxb.2023.2021092

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作者	单位	E-mail
韦兰	贵州大学昆虫研究所, 贵州山地农业病虫害重点实验室, 贵阳 550025
欧后丁	贵州大学昆虫研究所, 贵州山地农业病虫害重点实验室, 贵阳 550025
王秀琴	贵州大学昆虫研究所, 贵州山地农业病虫害重点实验室, 贵阳 550025
王博	贵州省烟草公司贵阳市公司, 贵阳 550005
于晓飞	贵州大学烟草学院, 贵阳 550025
杨茂发	贵州大学昆虫研究所, 贵州山地农业病虫害重点实验室, 贵阳 550025 贵州大学烟草学院, 贵阳 550025	gdgdly@126.com

中文摘要:为评估在5℃条件下冷藏不同时间的寄主烟草粉螟Ephestia elutella对麦蛾茧蜂Habrobracon hebetor适合度的影响,利用年龄-龄期两性生命表评估麦蛾茧蜂在0、15、30和60d不同冷藏时间烟草粉螟上的发育历期、存活率、繁殖力、种群参数、麻痹率参数、种群数量和麻痹潜能。结果表明,在冷藏30d的烟草粉螟上,麦蛾茧蜂成虫前期较短,存活率、平均繁殖力和雌成虫比例均最高;内禀增长率、周限增长率和净增殖率等种群参数均优于其他3个冷藏处理;净麻痹率、稳定麻痹率和周限麻痹率等麻痹率参数与其他冷藏处理间均无显著差异,但转化率(0.36)显著低于对照(0.39)和冷藏60d处理(0.40)。预测结果显示在冷藏30d的烟草粉螟上麦蛾茧蜂种群数量和麻痹潜能均最大,分别为3587837818头和539670155头。表明麦蛾茧蜂能在冷藏60d内的烟草粉螟上完成整个世代周期,而冷藏30d的烟草粉螟最有利于麦蛾茧蜂的规模化繁殖,建议以冷藏30d的烟草粉螟为寄主繁育麦蛾茧蜂。

中文关键词:烟草粉螟麦蛾茧蜂低温冷藏生命表规模化繁殖

Effects of cold storage of the tobacco moth Ephestia elutella on the fitness of ectoparasitoid wasp Habrobracon hebetor

Author Name	Affiliation	E-mail
WEI Lan	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology of Guizhou University, Guiyang 550025, Guizhou Province, China
OU Hou-ding	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology of Guizhou University, Guiyang 550025, Guizhou Province, China
WANG Xiu-qin	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology of Guizhou University, Guiyang 550025, Guizhou Province, China
WANG Bo	Guizhou Tobacco Company, Guiyang Branch Company, Guiyang 550005, Guizhou Province, China
YU Xiao-fei	College of Tobacco Science, Guizhou University, Guiyang 550025, Guizhou Province, China
YANG Mao-fa	Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions, Institute of Entomology of Guizhou University, Guiyang 550025, Guizhou Province, China College of Tobacco Science, Guizhou University, Guiyang 550025, Guizhou Province, China	gdgdly@126.com

Abstract:In order to evaluate the effects of tobacco moth Ephestia elutella stored at 5℃ for different durations on the fitness of ectoparasitoid wasp Habrobracon hebetor, the age-stage, two-sex life table was used to evaluate the developmental duration, survival rate, fecundity, population parameters, paralysis rate, population size and paralytic potential of H. hebetor on E. elutella for different periods of cold storage. The results showed that the pre-adult duration of E. elutella stored for 30 days was shorter, and its survival rate, mean reproduction rate and the proportion of females were the highest. The population parameters such as intrinsic rate of increase, finite rate of increase, and net reproduction rate were higher than those under other three treatments. The net paralysis rate, stable paralysis rate and finite paralysis rate were not significantly different from those in other treatments, but the transformation rate(0.36) was significantly lower than the control(0.39) or under cold storage treatment for 60 days(0.40). The predicted population size and paralytic potential of H. hebetor were the largest on E. elutella stored for 30 days,which were 3 587 837 818 and 539 670 155, respectively. The results indicated that H. hebetor could complete the whole generation cycle on E. elutella within 60 days of cold storage, and the host stored for 30 days was most beneficial to the mass rearing of H. hebetor. It suggested that cold storage of E.elutella for 30 days was optimal for rearing H. hebetor.

keywords:Ephestia elutella Habrobracon hebetor cold storage life table mass-rearing

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