Plectranthus tomentosa effectively repels and control Bemisia tabaci MED with its volatiles

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-04-10 DOI:10.1016/j.cropro.2025.107228

Ruxu Li , Wenqing Liu , Su Wang , Ning Di , Shuairan Yang , Wenxiang Li , Yuting Yang , Lixia Tian

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引用次数: 0

Abstract

Whitefly (Bemisia tabaci) is a global agricultural pest by causing serious losses and has developed cross resistance to multiple insecticides in crop production. It is essential to find sustainable measures to control B. tabaci. In this study, we found a shrubby perennial herb, vicks plant (Plectranthus tomentosa) effectively repelled B. tabaci. Preference and behaviors of B. tabaci in cages experiments and four-arm olfactometer assays were analyzed. Bemisia tabaci numbers were less on P. tomentosa plants in the cage plant-preference trials and had lower oviposition compared to tomato plants. To further investigate, we detected seven volatile organic compounds (VOCs) from P. tomentosa through electroantennogram (EAG) recordings. All these VOCs could elicit antennal responses of B. tabaci female and male adults. Interestingly, limonene, α-pinene and terpinolene were certified having repelling effects on B. tabaci adults by Y-tube olfactometer assays. Based on these results, P. tomentosa could be could be effectively utilized as a functional plant to repel B. tabaci. Additionally, limonene, α-pinene and terpinolene could be development into repellents for B. tabaci. Our research could not only verify the role of P. tomentosa in influencing B. tabaci behaviors, but also offer an environmentally friendly and effective strategy for managing B. tabaci.

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番泻叶的挥发物能有效驱除和控制烟粉虱 MED

白蝇（Bemisia tabaci）是造成严重损失的全球性农业害虫，在作物生产中对多种杀虫剂产生交叉抗性。找到控制烟粉虱的可持续措施至关重要。在本研究中，我们发现了一种多年生灌木草本植物，维克兰（Plectranthus tomentosa）对烟粉虱有有效的抵抗作用。采用笼试和四臂嗅探法对烟粉虱的偏好和行为进行了分析。在笼型植物偏好试验中，烟粉虱在毛毛粉虱植株上的数量较少，产卵量也低于番茄植株。为了进一步研究，我们通过触角电图（electrotenogram， EAG）记录从毛毛假蝇中检测到7种挥发性有机化合物（VOCs）。这些挥发性有机化合物均可引起烟粉虱雌、雄成虫的触须反应。有趣的是，柠檬烯、α-蒎烯和萜烯经y管嗅觉测定证实对烟粉虱成虫有驱避作用。综上所述，毛蕊花可作为一种功能植物有效地防治烟粉虱。此外，柠檬烯、α-蒎烯和萜烯可开发为烟粉虱的驱避剂。本研究不仅验证了绒毛假单胞菌对烟粉虱行为的影响，而且为烟粉虱的治理提供了一种环保有效的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.