用伏甲虫人工饲料和真菌共生介质饲养的新兴杨树害虫 Euwallacea interjectus 的生物学特性。

IF 1.6 3区 农林科学 Q2 ENTOMOLOGY Bulletin of Entomological Research Pub Date : 2024-06-01 Epub Date: 2024-05-08 DOI:10.1017/S0007485324000233
Langlang Zheng, Shengchang Lai, Yang Zhou, Nan Jiang, Dejun Hao, Lulu Dai
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引用次数: 0

摘要

Euwallacea interjectus 是最近在杨树种植园中发现的一种害虫,由于其造成树木大面积死亡,对经济构成了重大威胁。这种害虫的隐蔽行为阻碍了研究和防治工作,因此实验室饲养成为研究其发育和生物学特性的重要工具。我们利用人工饲料和真菌培养基研究了插枝蝇的发育期和生物学特性。我们的研究结果表明,卵、幼虫和蛹的平均发育时间分别约为 6 天、18 天和 6 天。值得注意的是,一龄幼虫和二龄幼虫的蜕皮高峰期分别为 3.45 ± 0.64 SD 天和 7.92 ± 1.77 SD 天。此外,我们还测量了蜕皮后幼虫的头囊宽度,一龄幼虫的头囊宽度为 318.02 ± 7.38 SD μm,二龄幼虫的头囊宽度为 403.01 ± 11.08 SD μm,三龄幼虫的头囊宽度为 549.54 ± 20.74 SD μm。我们的研究还发现,后代数量(卵、幼虫、蛹和成虫)与走廊系统的平均长度呈正相关。有趣的是,单倍体繁殖策略并不显著影响女始祖鸟的后代数量。此外,我们还观察到,与营养不良的食物相比,营养丰富的食物能使雌发现者显示出更高的繁殖力。我们的研究结果将加深我们对E. interjectus生物学的了解,并为幼虫的分期提供标准。此外,管理群落内的营养供应可被视为调节种群数量的一种可行方法。
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Biology of Euwallacea interjectus, an emerging poplar pest, reared on an ambrosia beetle artificial diet and medium of fungal symbiont.

Euwallacea interjectus, a recently discovered pest in poplar plantations, poses a significant economic threat due to its role in causing widespread tree mortality. This pest's cryptic behaviour has hindered research and control efforts, making laboratory rearing a valuable tool for studying its development and biology. We investigated the development period and biological characteristics of E. interjectus using artificial diets and fungal medium. Our findings revealed that the development time for eggs, larvae, and pupae averages approximately 6, 18, and 6 days, respectively. Notably, first and second instar larvae displayed peak moulting periods at 3.45 ± 0.64 SD and 7.92 ± 1.77 SD days, respectively. Furthermore, we measured head capsule widths of postmolt larvae, yielding values of 318.02 ± 7.38 SD μm for first-instar larvae, 403.01 ± 11.08 SD μm for second-instar larvae, and 549.54 ± 20.74 SD μm for third-instar larvae. Our research also uncovered a positive correlation between the number of progeny (eggs, larvae, pupae, and adults) and the mean length of the gallery system. Interestingly, the haplodiploid reproductive strategy did not significantly affect the number of offspring produced by the foundress. Additionally, we observed that foundresses displayed higher fecundity when subjected to nutrient-rich diets as compared to nutrient-poor diets. Our results will deepen our understanding of the biology of E. interjectus and provide criteria for larval instar classification. Additionally, managing nutrient availability within the colony could be considered a viable approach to regulating population size.

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来源期刊
CiteScore
4.00
自引率
0.00%
发文量
160
审稿时长
6-12 weeks
期刊介绍: Established in 1910, the internationally recognised Bulletin of Entomological Research aims to further global knowledge of entomology through the generalisation of research findings rather than providing more entomological exceptions. The Bulletin publishes high quality and original research papers, ''critiques'' and review articles concerning insects or other arthropods of economic importance in agriculture, forestry, stored products, biological control, medicine, animal health and natural resource management. The scope of papers addresses the biology, ecology, behaviour, physiology and systematics of individuals and populations, with a particular emphasis upon the major current and emerging pests of agriculture, horticulture and forestry, and vectors of human and animal diseases. This includes the interactions between species (plants, hosts for parasites, natural enemies and whole communities), novel methodological developments, including molecular biology, in an applied context. The Bulletin does not publish the results of pesticide testing or traditional taxonomic revisions.
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