Hui Qu, Jing Chang, Ze-Run Chuai, Wen-Bing Zhang, Jian Zhang, Jun Zhao, Hai-Ping Li
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引用次数: 0
Abstract
Frankliniella intonsa (Thysanoptera: Thripidae) is a significant invasive pest that can damage numerous plants and crops and spread the tomato spotted wilt virus. During the sunflower flowering period in the primary sunflower production area in China, F. intonsa-infested sunflower heads produce kernels with marked visual damage, including peel scratches, which reduce seed quality and profitability. In this study, the behavioral responses of F. intonsa to buckwheat and sunflowers were measured in a Y-tube. Meanwhile, gas chromatography-mass spectrometry was performed to determine the volatile components of inflorescences of both sunflower and buckwheat and the behavioral effects of these components were evaluated on F. intonsa in a Y-tube. The results revealed that sunflower leaves significantly repelled adults and nymphs of F. intonsa both in olfactometer bioassays. However, F. intonsa was significantly attracted by the volatiles from the leaves and flowers of buckwheat. Interestingly, F. intonsa adults preferred sunflower flowers over buckwheat flowers. Among the four kinds of sunflower flower volatiles selected, F. intonsa was attracted by two kinds of volatiles (γ-terpinene and (R)-( +)-limonene), while one volatile (β-pinene) had the effect of repelling F. intonsa, while among the four selected buckwheat flower volatiles, F. intonsa were attracted by three kinds of volatiles (α-caryophyllene, verbenone, octane). Finally, the field-trapping effect of buckwheat on F. intonsa was verified by a sunflower-buckwheat intercropping experiment. The results of this study provide a theoretical basis for the feasibility of intercropping with buckwheat and sunflower to control F. intonsa. Thus, buckwheat can be used as a trapping plant in fields to prevent F. intonsa invasion.
向日葵蓟马(Frankliniella intonsa)(蓟马科:Thripidae)是一种重要的入侵害虫,可损害多种植物和作物,并传播番茄斑萎病毒。在中国向日葵主产区的向日葵花期,受向蝽危害的向日葵花头会产生明显的视觉损伤,包括果皮划痕,从而降低种子质量和收益。本研究在 Y 型管中测定了 F. intonsa 对荞麦和向日葵的行为反应。同时,采用气相色谱-质谱法测定了向日葵和荞麦花序中的挥发性成分,并在 Y 型管中评估了这些成分对 F. intonsa 的行为影响。结果表明,在嗅觉仪生物测定中,向日葵叶片对 F. intonsa 的成虫和若虫都有明显的驱避作用。然而,荞麦叶片和花朵的挥发物对 F. intonsa 有明显的吸引作用。有趣的是,F. intonsa 成虫更喜欢向日葵花而不是荞麦花。在所选的四种向日葵花挥发物中,有两种挥发物(γ-萜品烯和(R)-(+)-柠檬烯)对 F. intonsa 有吸引作用,而一种挥发物(β-蒎烯)对 F. intonsa 有排斥作用,而在所选的四种荞麦花挥发物中,有三种挥发物(α-石竹烯、马鞭草酮、辛烷)对 F. intonsa 有吸引作用。最后,通过向日葵-荞麦间作试验验证了荞麦对 F. intonsa 的田间诱捕效果。这项研究的结果为荞麦和向日葵间作来控制 F. intonsa 的可行性提供了理论依据。因此,荞麦可作为田间诱捕植物,防止 F. intonsa 入侵。
期刊介绍:
Journal of Pest Science publishes high-quality papers on all aspects of pest science in agriculture, horticulture (including viticulture), forestry, urban pests, and stored products research, including health and safety issues.
Journal of Pest Science reports on advances in control of pests and animal vectors of diseases, the biology, ethology and ecology of pests and their antagonists, and the use of other beneficial organisms in pest control. The journal covers all noxious or damaging groups of animals, including arthropods, nematodes, molluscs, and vertebrates.
Journal of Pest Science devotes special attention to emerging and innovative pest control strategies, including the side effects of such approaches on non-target organisms, for example natural enemies and pollinators, and the implementation of these strategies in integrated pest management.
Journal of Pest Science also publishes papers on the management of agro- and forest ecosystems where this is relevant to pest control. Papers on important methodological developments relevant for pest control will be considered as well.