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小绿叶蝉是我国茶区茶树上的一种主要害虫,在长江中下游及南方茶区,由于此虫的危害可使夏秋茶产量损失15％左右,重害年达30～50％。一、发生特点小绿叶蝉在长江中下游茶区均以成虫在茶树上越冬外,还可以在杂草、豆科植物上越冬。在茶树上越冬的成虫是来年的主要虫源。长江中下游茶区大多属北亚热带和中亚热带气候,小绿叶蝉在这一气候带的发生特点基本上有三种类型: (一)四季分明的低丘茶区这是我国的主要产茶区。这些地区冬季有明显的低温期(1～2月),夏
Small green leafhopper tea plantation in our country is a major pest in the middle and lower reaches of the Yangtze River and the southern tea area, due to the hazards of pests can make summer and autumn tea production loss of about 15%, the weight of 30 to 50%. First, the occurrence of small green leafhopper in the tea in the middle and lower reaches of the Yangtze River are overwinter in the tea tree, but also in weeds, legumes overwintering. The overwintering adult in the tea tree is the main source of the coming year. Most of the tea plantations in the middle and lower reaches of the Yangtze River belong to the North Subtropical and Central Asian subtropical climates. There are basically three types of Occurrence of Small Leafhoppers in this climatic zone: (1) Low-hilly tea district with four distinct seasons This is China’s main tea-producing area. Winter in these areas have obvious low temperature (January to February), summer