油棕作物中偶体和寄主化学药剂对褐金龟甲的防治。

IF 1.5 3区 农林科学 Q2 ENTOMOLOGY
Valentina Vidal-Medina, Jenifer Jhoana Bustos Cortés, Rosa Aldana-de la Torre, Alex E Bustillo-Pardey, Anuar Morales-Rodríguez, Carolina Chegwin, Eloína Mesa Fuquen, César A Sierra, José Maurício Simões Bento, Alicia Romero-Frías
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引用次数: 0

摘要

褐金龟甲(鞘翅目:金龟科:褐金龟科)是拉丁美洲油棕幼树的重要害虫。虽然已经确定了一种信息素,但它作为综合管理工具的用途仍然有限。因此,为了更全面地阐明与该甲虫及其寄主相关的化学信号的特征,我们分离、鉴定和评估了S. aloeus和油棕球(Elaeis guineensis)释放的挥发性有机化合物(VOCs)。采用气相色谱-质谱联用技术(GC-MS)对化合物进行了分析,并在实验室和现场条件下通过对昆虫行为的影响验证了化合物的引诱潜力。从溶剂辅助萃取(SAE)样品中,鉴定出化合物2,4,7,9-四甲基-5-癸烯-4,7-二醇,乙酸仲丁酯和4-甲基辛酸乙酯的比例为58:34:8,可能是雄性特异性信息素的一部分。此外,采用静态顶空固相微萃取(HS-SPME)取样,鉴定了油棕kairomone中2-丁酮和3-戊酮的主要成分。芦荟对3种雄性特异性化合物的实验室行为反应,单独或联合,显示出显著的吸引力(P
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mate and host semiochemicals as management tools for Strategus aloeus (Coleoptera: Scarabaeidae) in oil palm crops.

Strategus aloeus (Coleoptera: Scarabaeidae: Dynastinae) represents a significant pest of young oil palm crops in Latin America. Although a pheromone had already been identified, its use as a tool for integrated management remained limited. Thus, to elucidate the fuller characterization of the chemical signaling associated with this beetle and its host, the volatile organic compounds (VOCs) released by S. aloeus and the oil palm bulb (Elaeis guineensis) were isolated, identified, and evaluated. The analysis was conducted using gas chromatography coupled with mass spectrometry (GC-MS), and the attractant potential of the compounds was validated by testing their effects on insects' behavior under laboratory and field conditions. From solvent-assisted extraction (SAE) samples, the compounds 2,4,7,9-tetramethyl-5-decyne-4,7-diol, sec-butyl acetate, and ethyl 4-methyloctanoate in a ratio of 58:34:8 were identified as part of a possible male-specific pheromone. Furthermore, 2-butanone and 3-pentanone were identified as components of the oil palm kairomone using static headspace with solid phase microextraction (HS-SPME) sampling. The laboratory behavioral response of S. aloeus to the 3 male-specific compounds, alone or combined, demonstrated a significant attraction (P < 0.01) of both sexes, indicating their potential involvement in intraspecific interactions, specifically as an aggregation sex pheromone. In field trials, mixtures of 3 to 5 semiochemicals demonstrated high capture rates with a female-biased proportion (80:20). The treatment containing 2-butanone, 3-pentanone, and sec-butyl acetate exhibited the highest efficacy (P < 0.0001).

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来源期刊
Environmental Entomology
Environmental Entomology 生物-昆虫学
CiteScore
3.90
自引率
5.90%
发文量
97
审稿时长
3-8 weeks
期刊介绍: Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment. In addition to research papers, Environmental Entomology publishes Reviews, interpretive articles in a Forum section, and Letters to the Editor.
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