危害荔枝、龙眼叶片的害虫种类较多，但不同由种的为害会留下不同的危害状。根据叶片的受害形状初步判断害虫种类，可为进一步调查、适时防治提供依据。下面介绍常见的荔枝、龙眼受害状及害虫：叶片上有退绿针痕小点，此点又无向四周扩展的迹象：利吸式昆虫如荔蜡：叶面向上隆 Harm the lychee, longan leaves more types of pests, but different from the kind of damage will leave different hazards. According to the shape of the victim to determine the preliminary pest insect species, for further investigation, provide the basis for prevention and treatment. The following describes the common litchi, longan damage and pests: the leaves have a green needle mark small dots, this point there is no sign of expansion to the surrounding: Lee suction type of insect such as wax wax: