Development of New Boric Acid Gel Baits Against German Cockroaches, Blatella germanica L (Blattodea: Blattellidae)

IF 0.2 4区 农林科学 Q4 ENTOMOLOGY Journal of the Kansas Entomological Society Pub Date : 2020-01-08 DOI:10.2317/0022-8567-92.2.432
A. Neupane, L. Kafle
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引用次数: 1

Abstract

ABSTRACT: The German cockroach, Blatella germanica, is a pest of human habitats distributed throughout the world. Boric acid (BA; H3BO3), in the form of powder, pellets, or blocks, has been used to control German cockroaches. Gel baits are also considered highly effective for controlling German cockroach populations. However, BA is not currently available as a gel bait. Thus, the present study was carried out to determine the best concentration of BA to formulate as a gel bait, and measure its direct effectiveness and the horizontal transfer of the active ingredient (AI) through cannibalism in adult German cockroaches (domino effect). Effectiveness of laboratory-prepared BA gel baits (lab baits) was analysed, and the efficacy and horizontal transfer of the most effective lab bait was compared to four commercial baits. Among three tested lab baits, the bait prepared with 40% BA (lab bait A) resulted in significantly greater cockroach mortality and a lower lethal time (LT50) value than other lab baits. When compared with commercial baits, there was no significant difference between lab bait A and BA baits in the amount of bait consumed and the detection time. Similarly, mortality of cockroaches caused by lab bait A was equal to mortality caused by the commercial BA bait. Percentage of bait unfed adult cockroaches killed by transferred BA from lab bait A fed and dead adult cockroaches (secondary mortality) was significantly greater than that caused by both commercial BA bait and fipronil bait.
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新型硼酸凝胶诱杀德国小蠊的研制
摘要:德国小蠊是一种分布于世界各地的人类栖息地害虫。硼酸(BA;H3BO3),以粉末、颗粒或块的形式,已被用于控制德国蟑螂。凝胶诱饵也被认为对控制德国蟑螂种群非常有效。然而,BA目前还不能作为凝胶诱饵。因此,本研究旨在确定BA作为凝胶诱饵的最佳浓度,并测量其直接有效性和活性成分(AI)通过在成年德国蟑螂中自相残杀的水平转移(多米诺骨牌效应)。分析了实验室制备的BA凝胶诱饵(实验室诱饵)的有效性,并将最有效的实验室诱饵的有效性和水平转移与四种商业诱饵进行了比较。在三种测试的实验室诱饵中,用40%BA制备的诱饵(实验室诱饵A)比其他实验室诱饵导致显著更高的蟑螂死亡率和更低的致死时间(LT50)值。与商业诱饵相比,实验室诱饵A和BA诱饵在诱饵消耗量和检测时间方面没有显著差异。类似地,实验室诱饵A引起的蟑螂死亡率等于商业BA诱饵引起的蟑螂死亡。从实验室诱饵转移BA杀死的诱饵未喂食的成年蟑螂的百分比喂食和死亡的成年蟑螂(二次死亡率)显著大于商业BA诱饵和氟虫腈诱饵造成的百分比。
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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
12
审稿时长
>12 weeks
期刊介绍: The Journal of the Kansas Entomological Society is a publication of the Kansas (Central States) Entomological Society, publishes research on all aspects of the sciences of entomology, and has world-wide authorship and readership.
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