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病虫害防治的方法有多种,一般可归纳为四类,即耕作防治、物理防治、生物防治和化学防治。其中的物理防治是一个发展时间较长又较容易掌握的防治方法之一。它是用物理措施,诸如热、光、放射线、湿度、气压、机械等方法来减轻或消灭病虫害的方法。但是在相当一段时间内,特别是近些年来,由于科学的进步和化学工业的飞速发展,高效低毒新农药广泛使用,加之现代生物技术在农业上的成功应用,病虫害的物理防治法被忽视了。这样不仅阻碍了该技术的进
There are many ways to control pests. Generally, they can be classified into four categories: farming control, physical control, biological control and chemical control. One of the physical prevention and control is one of the prevention and treatment methods which has a longer development time and is easier to grasp. It is a physical method, such as heat, light, radiation, humidity, pressure, mechanical and other methods to reduce or eliminate pests and diseases. But for quite some time, especially in recent years, due to the scientific progress and the rapid development of chemical industry, the widespread use of new pesticides with high efficiency and low toxicity, and the successful application of modern biotechnology in agriculture, the physical control of pests and diseases is neglected It’s This not only hindered the progress of the technology