BACKGROUND Aedes aegypti is the primary transmitter of several arbovirus with great impact in human health. Controlling vector mosquitoes is an essential and complex task. One promising control method is to use mosquitoes as a vehicle to disseminate tiny particles of juvenile-killing insecticides, such as pyriproxyfen (PPF), to breeding sites. OBJECTIVES We aimed to investigate the capacity of Ae. aegypti to disseminate two new formulations of PPF in two sites of Rio de Janeiro city for assessment of the efficacy of these products. METHODS Dissemination stations impregnated with powder and liquid new formulations of PPF were installed in two test sites. Ovitraps were used in the test sites and in a control site for monitoring the presence of Ae. aegypti throughout eggs collection. FINDINGS Entomological indices indicated that the new formulations of PPF were efficient in reducing eggs abundance. Liquid formulation performed better than powder formulation. Ready-to-use formulations of PPF can be quickly applied in the field and can be replaced after a few months. MAIN CONCLUSIONS New formulations of PPF associated with mosquito dissemination approach make a valuable vector control strategy, managing to cover places of difficult access for whatever reason. New formulations application requires less labour, being economically attractive.

中文翻译：

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使用里约热内卢市两个地点的传播站评估两种杀幼虫剂吡虫杀酚制剂对埃及伊蚊的防治效果

背景埃及伊蚊是几种虫媒病毒的主要传播者，对人类健康具有重大影响。控制媒介蚊子是一项必不可少的复杂任务。一种有希望的控制方法是使用蚊子作为媒介，将杀灭幼虫的杀虫剂（如吡虫杀酚（PPF））的细小颗粒传播到繁殖场所。目的我们旨在研究Ae的能力。aegypti将在里约热内卢市的两个地点传播两种新的PPF制剂，以评估这些产品的功效。方法在两个测试地点安装了散布有粉末和液体的PPF新配方的传播站。在测试部位和对照部位使用产卵器监测Ae的存在。整个卵收集过程中的埃及。研究结果昆虫学指标表明，PPF的新配方可有效降低鸡蛋的丰度。液体制剂的性能优于粉末制剂。PPF的即用型配方可在现场快速应用，几个月后即可更换。主要结论与蚊子传播方法相关的PPF的新配方是一种有价值的媒介控制策略，无论由于何种原因都能覆盖难以进入的地方。新配方的应用需要较少的劳动力，在经济上具有吸引力。主要结论与蚊子传播方法相关的PPF的新配方是一种有价值的媒介控制策略，无论由于何种原因都能覆盖难以进入的地方。新配方的应用需要较少的劳动力，在经济上具有吸引力。主要结论与蚊子传播方法相关的PPF的新配方是一种有价值的媒介控制策略，无论由于何种原因都能覆盖难以进入的地方。新配方的应用需要较少的劳动力，在经济上具有吸引力。