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1 种类与发生我国现有茶园106万公顷,1992年茶叶产量52万吨。国内已记载的茶树害虫(包括害螨)有400余种,病害(包括线虫)130余种。茶树病虫的发生程度因地区、年度而有变化,但减产的数字估计在10—15%左右。总的发生趋势是发生代数多,体形较小的刺吸式口器害虫的发生程度有加重趋势,夏秋茶期是病虫发生最严重的茶季,但少数病虫对春茶期威胁较大。从全国茶区病虫种群发生
1 species and the occurrence of 1,060,000 hectares of existing tea plantation in China, 1992 tea production 520,000 tons. There are over 400 species of tea tree pests (including pest mites) recorded in the country and more than 130 diseases (including nematodes). The incidence of tea plant diseases and insect pests varies by region and year, but the number of production cuts is estimated at 10-15%. The general trend is the occurrence of more algebra, the smaller shape of the sucking mouthparts pest insects have a tendency to increase the degree of summer and autumn tea is the most serious pests and diseases of the tea season, but a small number of pests and diseases on the Spring Tea threat . Occurred from the pest population in the tea plantation in the country