Increased concerns regarding the safety of many chemicals used as insecticides or repellents, together with the development of resistance by insects to various insecticides, have led to the search for new active natural ingredients. For what we believe is the first time, that is monitored the efficiency of neem oil (Azadirachta indica) as a repellent against adult Aedes albopictus directly in the field. To test the efficacy of repellency against adults, treatments were performed (5 ml/l) in six different locations. For each location, two closed gardens distance between them 200 m were chosen (one where the treatment was performed, consisting in spraying a mixture of water and Neem oil 5 g/l and one which was used as a control where only water with emulsifier was used). To monitor the treatment efficacy, six ovitraps were used (for each location three for the treated garden and three for the control garden). Data (n° mosquito eggs trapped in each ovitrap) were collected weekly for 6 mo (from May to October) for a total of 900 samplings. Daily temperature and daily rainfall were monitored throughout the trial. The treatment was most effective in June and July. Very high temperatures and high rainfall reduced the efficacy of neem oil over time.

中文翻译：

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印度印za（Sapindales：Meliaceae）印em油作为白纹伊蚊（Diptera：Culicidae）驱蚊剂。

对用作杀虫剂或驱虫剂的许多化学药品的安全性的关注日益增加，同时随着昆虫对各种杀虫剂产生抗性的发展，人们开始寻找新的活性天然成分。我们认为这是首次在田间直接监测印em油（印度印A（Azadirachta indica））作为抗成虫白纹伊蚊的功效。为了测试对成年人的排斥效果，在六个不同的位置进行了治疗（5 ml / l）。对于每个位置，选择两个封闭花园之间的距离200 m（其中一个进行处理，包括喷洒水和5 g / l的印度em树油的混合物，另一个用作仅使用乳化剂的水作为对照）用过的）。为了监测治疗效果，使用了六个产卵器（每个位置三个为处理过的花园，三个为对照花园）。每周（6月（5月至10月））收集数据（每个产卵器中诱捕的n°蚊卵），共进行900次采样。在整个试验过程中监测每日温度和每日降雨量。该治疗在6月和7月最为有效。高温和高降雨会随着时间的推移降低印em油的功效。