Abstract. Laboratory experiments with food-deprived larvae of odonates suggested that these predators may have the potential to control mosquito populations. However, it remains unclear whether larvae of odonates co-occur with mosquito larvae in the field and whether larvae of odonates reduce the density of mosquito larvae in the field. We exposed 35 water-filled concrete containers in the field in shady and sunny conditions. Some of these containers were partially covered (for simplicity called closed containers, allowing only mosquitoes to lay eggs), whereas others remained open. The density of mosquito larvae was higher in shaded containers and in closed containers. The multivoltine odonate Bradinopyga strachani colonized open containers and the occurrence of these predators resulted in a clear reduction of the mosquito population. Our results indicate that increasing the colonization of water bodies by Bradinopyga strachani is a promising strategy for controlling populations of mosquitoes.

中文翻译：

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蜻蜓 (<i>Bradinopyga strachani</i> Kirby, 1900) 在使用中胚层的田间试验中对蚊子幼虫密度的影响

摘要。对缺乏食物的齿科幼虫进行的实验室实验表明，这些捕食者可能具有控制蚊子种群的潜力。然而，目前尚不清楚田间蚊子幼虫是否会与蚊子幼虫同时发生，以及蚊子幼虫是否会降低田间蚊子幼虫的密度。我们在阴凉和阳光充足的条件下在现场暴露了 35 个注水混凝土容器。其中一些容器被部分覆盖（为简单起见，称为封闭容器，只允许蚊子产卵），而其他容器则保持打开状态。蚊子幼虫的密度在阴凉容器和密闭容器中较高。multivoltine odonate Bradinopyga strachani 在开放的容器中定殖，这些捕食者的出现导致蚊子数量明显减少。