荔枝和龙眼是我国南方的名牌水果,历来深受国内外消费者的喜爱,是搞活农村经济、换取外汇的重要水果品种之一,在南方的果树生产中占有重要的地位。然而要发展荔枝和龙眼生产,除了选育优质的品种,扩大栽培面积外,栽培管理、病虫害防治等方面也是必不可少的重要环节。据初步调查统计,在我国为害荔枝、龙眼的害虫有一百多种,其中重要的有十余种,每年可造成难以估计的损失,在个别年份虫害严 Litchi and longan, the brand-name fruits of southern China, have always been favored by consumers both at home and abroad and are one of the important fruit varieties invigorating the rural economy in exchange for foreign exchange. They occupy an important position in the production of fruit trees in the south. However, in order to develop litchi and longan production, in addition to breeding high-quality varieties and expanding cultivation areas, cultivation management, pest control and other aspects are also indispensable and important links. According to the preliminary investigation and statistics, there are over 100 kinds of pests in our country which are harmful to litchi and longan. Among them, there are more than ten kinds of pests, which can cause hard to estimate losses every year. In a few years pests