Efficacy of selected insecticide sprays against Indian meal moth (Lepidoptera: Pyralidae) wandering larvae on various surfaces

IF 2.7 2区农林科学 Q1 ENTOMOLOGY

Journal of Stored Products Research Pub Date : 2024-10-02 DOI:10.1016/j.jspr.2024.102438

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Abstract

The Indian meal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), is a worldwide pest found in food product warehouses. Presence of P. interpunctella wandering larvae causes customer complaints and product rejection from customers. Its prepupal stage is susceptible to insecticide treatment due to their wandering behavior. We evaluated the efficacy of three insecticide sprays, ExciteR (0.017% pyrethrins, 0.174% piperonyl butoxide), Suspend SC (0.053% deltamethrin), and Transport Mikron (0.047% acetamiprid, 0.056% bifenthrin) against P. interpunctella wandering larvae by forced exposure to porous (vinyl tile, unpainted pinewood, concrete, and paper) and non-porous (steel, glazed ceramic) surfaces, and exposure to treated harborages made of two pieces of vinyl tiles, unpainted pinewood, and concrete. Under continuous exposure conditions, both ExciteR and Suspend SC caused significantly higher mortality (90–96%) than Transport Mikron (73–75%) on non-porous surfaces after 4 days (P < 0.05). But on porous surfaces, the three insecticides caused ≤63% mortality with Suspend SC being the most effective. When using 2× amount of insecticides as that in the previous test (2.1 gallon/1000 ft², which is 4.33, 1.20, and 2.33 mg a.i./m² of ExciteR, Suspend SC, and Transport Mikron, respectively), Suspend SC was the only insecticide causing high mortality (≥99%) through both forced exposure to concrete surface and exposure to treated concrete harborage. Whereas other treatments caused <12% mortality. Among the porous surfaces, residual efficacy of Suspend SC on concrete was significantly higher than that on vinyl tiles. Application of an effective liquid insecticide (such as 0.053% deltamethrin) into harborages or directly to the possible pupation sites, such as corners, cracks, and crevices could be an effective strategy for managing P. interpunctella wandering larvae in warehouse environment.

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精选杀虫剂喷雾剂对印度粉蛾（鳞翅目：蚜科）游走幼虫在不同物体表面的药效

印度粉蛾（Plodia interpunctella (Hübner)）（鳞翅目：鳞翅目）是食品仓库中的一种世界性害虫。印度小菜蛾游走幼虫的存在导致客户投诉和产品被客户拒收。由于其游走行为，其蛹前期很容易被杀虫剂处理。我们评估了 ExciteR（0.017% 除虫菊酯、0.174% 胡椒基丁醚）、Suspend SC（0.053% 溴氰菊酯）和 Transport Mikron（0.047% 啶虫脒、0.056% 联苯菊酯）这三种杀虫剂喷雾剂对游走幼虫 P. Interunctella 的药效。通过强制暴露于多孔（乙烯基瓦、未涂漆松木、混凝土和纸）和无孔（钢、釉陶）表面，以及暴露于由两片乙烯基瓦、未涂漆松木和混凝土制成的处理过的港湾中，对游荡在港湾中的间卷叶螟幼虫进行了研究。在连续暴露条件下，4 天后，ExciteR 和 Suspend SC 在无孔表面造成的死亡率（90%-96%）明显高于 Transport Mikron（73%-75%）（P < 0.05）。但在多孔表面上，三种杀虫剂造成的死亡率均低于 63%，其中悬浮剂 SC 的效果最好。当使用的杀虫剂用量为上次试验的 2 倍（2.1 加仑/1000 平方英尺，即 ExciteR、Suspend SC 和 Transport Mikron 的活性成分分别为 4.33、1.20 和 2.33 毫克/平方米）时，Suspend SC 是唯一一种通过强制暴露于混凝土表面和暴露于处理过的混凝土庇护所而导致高死亡率（≥99%）的杀虫剂。而其他处理的死亡率为 12%。在多孔表面中，Suspend SC 在混凝土上的残效明显高于在乙烯基瓷砖上的残效。将有效的液态杀虫剂（如 0.053% 的溴氰菊酯）施用到庇护所或直接施用到可能的化蛹地点，如角落、裂缝和缝隙，可能是管理仓库环境中游荡幼虫的有效策略。

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

Journal of Stored Products Research 生物-昆虫学

CiteScore

5.70

自引率

18.50%

发文量

112

审稿时长

45 days

期刊介绍： The Journal of Stored Products Research provides an international medium for the publication of both reviews and original results from laboratory and field studies on the preservation and safety of stored products, notably food stocks, covering storage-related problems from the producer through the supply chain to the consumer. Stored products are characterised by having relatively low moisture content and include raw and semi-processed foods, animal feedstuffs, and a range of other durable items, including materials such as clothing or museum artefacts.