Diagnosis of acaricide resistance in Oligonychus punicae (Hirst) (Acari: Tetranychidae) in grapevines from the São Francisco Valley, Brazil

IF 2.5 2区农林科学 Q1 AGRONOMY

Crop Protection Pub Date : 2025-09-17 DOI:10.1016/j.cropro.2025.107409

André S. Melo , Maria Luiza T. Matheus , José E.M. Oliveira , José W.S. Melo , Herbert A.A. Siqueira , Manoel G.C. Gondim Jr.

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Abstract

The intensive use of acaricides, such as abamectin, in the São Francisco Valley region of Brazil has increased selection pressure on the red mite Oligonychus punicae, leading to frequent reports of field control failures. This study evaluated the hypothesis that repeated abamectin use for tetranychid mite control in grapevines has led to a high frequency of resistance in O. punicae populations. This study aimed to detect and document abamectin resistance in O. punicae populations infesting grapevines. To assess potential cross-resistance, toxicity assays were also conducted with bifenthrin and pyridaben—other acaricides registered for Tetranychus urticae control in Brazilian vineyards. Tested populations of O. punicae exposed to a diagnostic concentration of 9 mg L⁻¹ abamectin were classified as resistant, with resistance ratios reaching up to 398-fold relative to the susceptible population. In contrast, the label-recommended concentrations of bifenthrin and pyridaben caused 100 % mortality in all tested populations, although resistance ratios varied from 1- to 25-fold. A significant positive correlation was observed between the LC₉₀ values of abamectin and bifenthrin; however, the results suggest a pattern of multiple resistance rather than cross-resistance among the tested acaricides. Understanding the evolution of acaricide resistance in O. punicae is essential for developing effective pest control and resistance management strategies in viticulture.

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巴西奥弗朗西斯科谷地葡萄果实少爪螨（螨目：叶螨科）抗药性诊断

巴西 o Francisco Valley地区大量使用阿维菌素等杀螨剂，增加了红螨的选择压力，导致现场防治失败的报告频繁发生。本研究评估了反复使用阿维菌素控制葡萄叶螨的假设，这导致了葡萄叶螨种群抗性的高频率。本研究旨在检测和记录侵染葡萄藤的葡萄螟种群对阿维菌素的耐药性。为了评估潜在的交叉抗性，还对联苯菊酯和吡啶虫酯等巴西葡萄园登记的荨麻疹叶螨杀螨剂进行了毒性试验。暴露于诊断浓度9 mg L−1阿维菌素的试验群体被归类为耐药群体，相对于敏感群体的抗性比率高达398倍。相比之下，标签上推荐的联苯菊酯和嘧螨虫浓度在所有测试人群中造成100%的死亡率，尽管抗性比率从1倍到25倍不等。阿维菌素LC90值与联苯菊酯LC90值呈显著正相关；然而，结果表明，在测试的杀螨剂之间存在多重抗性而不是交叉抗性的模式。了解葡萄对杀螨剂的抗性演变，对制定有效的葡萄栽培害虫防治和抗性管理策略具有重要意义。

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.