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夜蛾黑卵蜂是草地贪夜蛾卵期的重要寄生蜂，在草地贪夜蛾的生物防治中发挥重要作用。明确温度和营养对夜蛾黑卵蜂成蜂寿命和繁殖习性的影响，对促进草地贪夜蛾的生物防治具有重要意义。本研究设置4、10和26℃3个温度条件及质量分数为10%、20%、40%蔗糖水，质量分数为10%、20%、40%蜂蜜水6个营养条件，研究不同处理条件下夜蛾黑卵蜂雌蜂的寿命、存活率、产卵行为、产卵量、子代羽化率和雌性比。结果表明，4℃为夜蛾黑卵蜂最佳冷藏温度，10℃次之；40%蔗糖水为最佳营养条件，20%蔗糖水次之。4和10℃下，冷藏1、3、5、10 d,同时饲喂20%或40%蔗糖水时，雌蜂的产卵时间与对照组相比大多差异不显著，但产卵量显著低于对照组；子代羽化率和雌性比随冷藏天数增加出现下降趋势。
Abstract：As an egg parasitoid, Telenomus remus Nixon plays an important role in the biological control of Spodoptera frugiperda. Elucidating the effects of temperature and nutrition on the adult lifespan and reproductive habits of T. remus is essential for the biological control of S. frugiperda. Three temperature conditions(4, 10 and 26 ℃) and six nutrient conditions(10%, 20%, and 40% sucrose water and 10%, 20%, and 40% honey water) were set up in this study. The lifespan, survival rate, oviposition behavior, fecundity, offspring eclosion rate, and offspring female ratio under the different treatments were studied in adult female T.remus. A cold storage temperature of 4 ℃ was determined to be the best, followed by 10 ℃; 40% sucrose water was the best nutritional condition, followed by 20% sucrose water. Upon being refrigerated at 4 and 10 ℃ and fed with 20% or 40% sucrose solution, respectively, after 1, 3, 5, and 10 d, the oviposition times of the two groups were mostly not significantly different from that of the control group, but the fecundities were significantly lower than that of the control group. The emergence rate and female ratio of offspring demonstrated a decreasing trend with the increase in the number of days spent in the fridge.
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基本信息:
DOI：10.15914/j.cnki.wykx.2024.01.04
中图分类号:S476.3
引用信息:
[1]刘紫晶,马小龙,薛陶然等.温度和营养对夜蛾黑卵蜂成蜂寿命和繁殖习性的影响[J].武夷科学,2024,40(01):27-36.DOI:10.15914/j.cnki.wykx.2024.01.04.
基金信息:
福建省自然科学基金面上项目(2021J01064); 国家重点研发计划项目(2023YFE0123000)