Preferences of Lygus pratensis (Hemiptera: Miridae) for Four Potential Trap Crop Plants

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Journal of Entomological Science Pub Date : 2022-10-12 DOI:10.18474/JES22-01
Changqing Gou, Hai-ting Hao, Lan Wang, Hong-zu Feng
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Abstract

Abstract The mirid, Lygus pratensis (L.) (Hemiptera: Miridae), is a major pest of cotton (Gossypium spp.) in Xinjiang Uyghur Autonomous Region, China. In this study, we aimed to reveal the preferences of L. pratensis toward four potential trap crop plants for use in controlling this pest. The population densities of L. pratensis on five host plants were investigated by visual observation, and the behavioral responses of L. pratensis to the five host plants were determined by Y-type olfactory assays and laboratory selectivity assays. The results showed significant differences in host preferences in the field. The average numbers of adults on the five host plants are in the following order, from high to low: Lepidium latifolium (L.), Kochia prostrata (L.) Schrad, Chenopodium glaucum (L.), Medicago sativa (L.), and Gossypium spp. Laboratory selectivity assays found that K. prostrata had the highest number of adults at 5 min, but L. latifolium had the highest number of adults from 1.5 to 4.5 h. The Y-tube olfactometer assays found no significant evidence for selection of L. pratensis between the volatiles of M. sativa and pure air, but did for the other four plants. In conclusion, the blooming stage of L. latifolium was the most attractive to L. pratensis in the field and is, thus, a potential trap crop plant for L. pratensis.
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草地贪夜蛾(半翅目:Miridae)对四种潜在陷阱作物的偏好
新疆棉蚜是我国新疆维吾尔自治区棉花的主要害虫。在这项研究中,我们旨在揭示草地早熟禾对四种潜在的陷阱作物的偏好,以用于控制这种害虫。通过视觉观察研究了五种寄主植物上草地早熟禾的种群密度,并通过Y型嗅觉测定和实验室选择性测定测定了草地早熟禾对五种寄主的行为反应。结果表明,该地区的寄主偏好存在显著差异。五种寄主植物的平均成虫数量从高到低依次为:Lepidium latifolium(L.)、Kochia prosta(L.)Schrad、Chenopodium glaucum(L。Y管嗅觉仪测定没有发现在M.sativa的挥发物和纯空气之间选择L.pratensis的显著证据,但对其他四种植物都有。综上所述,白车轴草的开花期对草地早熟禾最具吸引力,是草地早熟禾潜在的诱杀作物。
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来源期刊
CiteScore
1.20
自引率
11.10%
发文量
40
审稿时长
>12 weeks
期刊介绍: The Journal of Entomological Science (ISSN 0749-8004) is a peer-reviewed, scholarly journal that is published quarterly (January, April, July, and October) under the auspices of the Georgia Entomological Society in concert with Allen Press (Lawrence, Kansas). Manuscripts deemed acceptable for publication in the Journal report original research with insects and related arthropods or literature reviews offering foundations to innovative directions in entomological research
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