叉角厉蝽低温贮藏最适虫态和条件

doi:10.16409/j.cnki.2095-039x.2022.03.028

摘要/Abstract

摘要： 叉角厉蝽是一种能够有效控制草地贪夜蛾等鳞翅目农业害虫的捕食性天敌昆虫，低温贮藏是天敌昆虫开展大规模生产与释放的重要环节之一。本研究对叉角厉蝽适合低温贮藏的虫态进行了筛选，探究了不同低温与食物条件组合的贮藏方式对叉角厉蝽雌雄成虫寿命、存活率和致死中时间的影响。结果表明叉角厉蝽最佳贮藏虫态为成虫期，该时期低温贮藏效果优于若虫期和卵期；在低温贮藏成虫时，供水组、供水与食物组的效果要好于供食物组和饥饿组。在同时提供食物与水的条件下雌成虫在16 ℃、雄成虫在10 ℃或13 ℃下各项指标较优，平均寿命分别为49.78 d、39.41 d和44.00 d，存活率达80%的冷藏时间为22.00 d、25.33 d和21.00 d，LT₅₀分别为49.32 d、38.98 d和43.62 d；综合考虑存活率、寿命等适合度因素，叉角厉蝽的低温贮藏可选择雌成虫在16 ℃、雄成虫在10～13 ℃，同时提供食物与水的条件下进行。

关键词: 叉角厉蝽, 生物防治, 低温贮藏, 补充营养

Abstract: Eocanthecona furcellata is an important predatory insect,which can effectively control Lepidoptera agricultural pests such as Spodoptera frugiperda.Low temperature storage is an important sector for large-scale production and release of insect natural enemies.In this study,we determined the suitable low-temperature storage stage of E.furcellata and the effects of low temperature and food conditions on the longevity,survival rate and median lethal time of E.furcellata.The results showed that adult was the optimal storage stage,and low temperature storage of adults produced better storage results than those obtained with storage of nymphs and eggs.When E.furcellata adults were stored at low temperature and provided with water,or water and food,the storage result was better than that obtained in the food group and hungry group.When food and water were concurrently provided,female adults stored at 16℃ and male adults stored at 10 d or 13℃ lived a lifespan of 49.78 d,39.41d and 44.00 d,respectively,or 22.00 d,25.33 d and 21.00 d,respectively,with 80% survival rate,and exhibited LT₅₀ of 49.32 d,38.98 d and 43.62 d,respectively.Thus it is recommended that E.furcellata adults be stored at 16℃(female) or 10―13℃(male) with food and water supplied at the same time.

Key words: Eocanthecona furcellata, biological control, low temperature storage, supplementary nutrients

中图分类号:

S476.2

汤永玉, 赵航, 张曼, 梁晨, 邢孔政, 吴国星, 高熹. 叉角厉蝽低温贮藏最适虫态和条件[J]. 中国生物防治学报, 2022, 38(5): 1345-1353.

TANG Yongyu, ZHAO Hang, ZHANG Man, LIANG Chen, XING Kongzheng, WU Guoxing, GAO Xi. Suitable Stage and Conditions for Low Temperature Storage of Eocanthecona furcellata[J]. Chinese Journal of Biological Control, 2022, 38(5): 1345-1353.

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