茶园覆盖塑料大棚，大棚内适宜的小气候条件，可促使春茶早发芽、早上市，增加高档茶的产量，提高茶园的经济效益，但同时也促使了某些茶树病虫害的滋生繁殖。茶炭疽病是一种常见的茶树病害，罹病茶树由于光合作用面积减小，产量明显下降。茶炭疽病一般多发生于梅雨期和秋雨季 Plastic teahouses cover the greenhouse, suitable microclimate conditions within the greenhouses can promote the early spring tea buds, the morning market, increase the yield of high-grade tea and improve the economic benefits of tea, but also contributed to the breeding of some tea plant diseases and insect pests. Tea anthracnose is a common disease of tea trees. The yield of tea trees is obviously decreased due to the decrease of photosynthesis area. Anthracnose generally occurs in the plum rainy season and the rainy season