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柑桔螨、蚧是我国柑桔生产和检疫上的两类重要害虫。对于这两类害虫的防治,过去主耍采用化学方法。虽然对于某些蚧类已经有生物学的防除法,但是能够作为例子来提的还是极少数。如所周知,国外许多国家利用这样或那样的天敌来消灭上述两类害虫,已经是常见的事。现阶段的害虫防治技术,生物和化学的组合防除,必须是柑桔螨类和蚧类害虫综合防治的主要内容。 在柑桔螨类和蚧类害虫的捕食性天敌中,无可置疑,瓢虫具有最大的效能。笔者近年来注意到柑桔方面某些瓢虫的利用问题,在学习了一部分文献资料以后,试结合国内情况,归纳提出以下几点,希同志们指教: 一、关于开展瓢虫种类分布和 生物学、生态学的调查研究 我国柑桔产区广大,食螨、食蚧瓢虫资源可能相当丰富。其中已知的柑桔食蚧瓢虫约计20余种;食螨的瓢虫种类则较少。各地瓢虫资源还需要作进一步的采
Citrus mites, scale is China’s citrus production and quarantine on the two types of important pests. For the prevention and treatment of these two types of pests, in the past the main chemical methods. Although there are biological controls available for certain classes of kites, few can be mentioned as examples. As we all know, it is already common for many countries in foreign countries to use these and other natural enemies to eliminate these two types of pests. At this stage of pest control technology, biological and chemical combination of prevention and control, must be citrus mites and scale insects comprehensive prevention and control of the main elements. In predatory enemies of citrus mites and scale insects, there is no doubt that ladybugs have the greatest potency. In recent years, the author noted the use of certain ladybirds in citrus. After studying some of the documents and materials, combined with the domestic situation, the author summed up the following points and hope my comrades hope: First, on the species distribution and biological ladybug Studies in ecology and ecology In China, citrus producing areas are vast with abundant food-eating mites and ladybugs. Ladybug resources may be quite abundant. Among them, there are about 20 species of ladybugs known to eat citrus scales; the species of ladybugs for food mites is less. Ladybug resources around also need to be further mining