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目前,茶叶生产通常采用传统的大容量喷雾法防治病虫害,这种喷药方法的特点是喷液量大,往往可高达125～200公斤/亩,因此,费工费药,农药的对靶率低,大部分农药散落于非目标靶区而污染环境。为了提高农药的对靶率,降低防治成本以及减轻农药对环境的污染,改进目前常用的农药喷撒技术已势在必行。早在40年代,国外就已经开始研究如何改进农药的喷撒技术,并提出了对靶喷撒农药的理论。近几十年来,根据这一对靶沉积理论,国外相继出现了静电喷撒法、间隙喷雾法、笼罩喷雾法和各种各样的低容量、超低容量喷雾法,这些方法的共同点是雾滴细而均匀,农药在目标靶上的沉积率高,防治效果好,成本低,所以,有很高的使用价值。我国的农药喷撒技
At present, tea production usually uses the traditional large-capacity spray method to prevent pests. The spraying method is characterized by large spray volume, often up to 125-200 kg / mu. Therefore, Low, most of the pesticides scattered in non-target target area and pollute the environment. In order to improve the target rate of pesticides, reduce the cost of prevention and control and reduce the environmental pollution caused by pesticides, it is imperative to improve the commonly used pesticide spraying technology. As early as the 1940s, foreign countries began to study how to improve pesticide spraying technology and put forward the theory of target spraying pesticides. In recent decades, according to this theory of target deposition, foreign countries have emerged electrostatic spraying method, gap spray method, shrouded spray method and a variety of low-capacity, ultra-low volume spray method, these methods have in common is Fine and uniform droplets, pesticides in the target deposition rate, prevention and control, and low cost, so there is a high value. Pesticide spraying technology in China