Evaluation of repellents for management of ambrosia beetles (Coleoptera: Curculionidae) in nursery production,Pest Management Science

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Evaluation of repellents for management of ambrosia beetles (Coleoptera: Curculionidae) in nursery production
Pest Management Science ( IF 3.8 ) Pub Date : 2025-05-27 , DOI: 10.1002/ps.8897
Anju Poudel _{1,

2} , Jason B Oliver ₁ , Bijay Subedi ₂ , Jesse Saroli ₃ , Agenor Mafra-Neto ₃ , Karla M Addesso ₁

Affiliation

BACKGROUNDAmbrosia beetles (Coleoptera: Curculionidae: Scolytinae) are critical pests of ornamental nursery trees, which are attracted to ethanol‐emitting stressed trees. The limited efficacy of traditional insecticides for their control calls for alternative management strategies, such as semiochemical repellents. This study assessed the efficacy of multiple experimental repellent formulations across field and semi‐field trials to determine their potential for reducing ambrosia beetle captures and attacks under different environmental and application conditions.RESULTSBeetle Guard #2 and Beetle Guard#3, consisting of different combinations of verbenone and methyl salicylate, significantly reduced ambrosia beetle captures and attacks in soda bottle and bolt trap trials. Among the formulations, Beetle Guard #3 demonstrated consistent performance across multiple years. In subsequent trials, ambrosia beetle attacks were significantly reduced in all treatments containing Beetle Guard #3 ‐ regardless of ethanol release rate. This indicates that Beetle Guard #3 effectively prevents beetle attacks under varying ethanol emissions conditions.CONCLUSIONBeetle Guard #2 and Beetle Guard #3 effectively reduced ambrosia beetles in ornamental nursery production. Although Beetle Guard #3 was the most effective formulation tested, further work is needed to optimize application strategies, including dose and spacing requirements, to improve field‐level efficacy for managing ambrosia beetle attacks in nurseries. © 2025 Society of Chemical Industry.

中文翻译：

苗圃生产中驱虫剂管理甲虫（鞘翅目：Curculionidae）的评价

背景 Ambrosia 甲虫（鞘翅目：Curculionidae：Scolytinae）是观赏苗木的关键害虫，它们被释放乙醇的胁迫树木所吸引。传统杀虫剂的控制效果有限，需要替代管理策略，例如半化学驱虫剂。本研究评估了多种实验性驱虫剂制剂在田间和半田间试验中的功效，以确定它们在不同环境和应用条件下减少 ambrosia 甲虫捕获和攻击的潜力。结果由马鞭草酮和水杨酸甲酯的不同组合组成的 Beetle Guard #2 和 Beetle Guard#3 在苏打瓶和螺栓陷阱试验中显着减少了 ambrosia 甲虫的捕获和攻击。在这些配方中，Beetle Guard #3 在多年中表现出一致的性能。在随后的试验中，无论乙醇释放速率如何，在所有含有 Beetle Guard #3 的处理中，ambrosia 甲虫的攻击都显着减少。这表明 Beetle Guard #3 在不同的乙醇排放条件下有效防止甲虫的攻击。结论 Béetle Guard #2 和 Beetle Guard #3 在观赏苗圃生产中有效减少了 ambrosia 甲虫。尽管 Beetle Guard #3 是测试过的最有效的配方，但需要进一步的工作来优化应用策略，包括剂量和间距要求，以提高管理苗圃中 ambrosia 甲虫攻击的田间疗效。© 2025 化工学会.

更新日期：2025-05-27

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