Use of nonpesticidal chemicals to minimize or eliminate horn fly (Haematobia irritans) populations on cattle could be helpful in combating insecticide resistance. One recent approach is the use of natural products with repellent properties against the target pest. A rapid on-animal evaluation system that accounts for both host and pest interactions and bypasses the need for costly multiyear field assessments is needed. The objective of this study was to develop a system to quantify product repellency of horn flies on cattle in a laboratory setting. Animal pair treatment groups were utilized to assess product efficacy and carrier effects across three experimental trials. A treatment solution consisting of 3% geraniol in mineral oil was the natural product repellent. Horn fly populations on animal pairs receiving the geraniol treatment were significantly reduced when compared with untreated animal pairs. However, animal pairs receiving a mineral oil-only treatment showed reduced horn fly populations similar to animals treated with mineral oil plus geraniol. Thus, there was a strong carrier effect that could be difficult to distinguish in the field but was easily observed using laboratory methods.

中文翻译：

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建立一种评估化合物在实验室环境中驱赶牛角蝇（双翅目：蝇科）的功效的方法

使用非杀虫剂来减少或消除牛上的角蝇（Haematobia irritans）种群可能有助于对抗杀虫剂抗性。最近的一种方法是使用具有驱虫特性的天然产品来对抗目标害虫。需要一个快速的动物评估系统，它可以考虑宿主和害虫的相互作用，并绕过昂贵的多年实地评估的需要。本研究的目的是开发一个系统来量化实验室环境中牛对角蝇的产品排斥性。动物配对治疗组用于评估三个实验试验中的产品功效和载体效应。由矿物油中 3% 香叶醇组成的处理溶液是天然产物驱虫剂。与未处理的动物对相比，接受香叶醇处理的动物对上的角蝇种群显着减少。然而，接受仅矿物油处理的动物对显示出与用矿物油加香叶醇处理的动物相似的角蝇种群减少。因此，存在一种在现场很难区分但使用实验室方法很容易观察到的强载流子效应。