Camellia half tea is also called rotten tea, bad skin, white dry blight, gypsum tree. Camellia area occurs. Is a fungal disease, caused by a basidiomycete invasive from the wound, the incidence is generally 3% to 5%. The diseased plants grow weak, the leaves yellow, fallen leaves, fallen flowers, and fruit drop, and generally die for 3 to 5 years. The disease usually occurs below the branches, the dry base, or the slanted surface of the middle part. After onset, the bark rots, the xylem is dry and gray-brown, showing a layer of plaster-like membranous mycelium, and finally the disease department subsides and forms an ulcer. Long strips. The disease occurred in the old forest and the sprouting forest. There were fewer occurrences of young and strong oily tea forests; more incidences of shady slopes and mountain nests occurred, and there were fewer incidences on sunny slopes and mountain tops; the incidence of dense forests was more and there were fewer incidences of thin forests. The development of lesions in shadows was rapid, and lesions developed rapidly during high temperatures in July and August, and the lesions expanded to the maximum in September. According to the incidence of the disease, prevention and control should start from the following aspects. First, the density of afforestation must not be too large for ventilation and light transmission. At the same time, it is necessary to strengthen the tending management of Camellia oleifera forest, promote robust growth of Camellia oleifera, and enhance disease resistance. The second is to combine oil tea with winter wolfberry and pruning to completely remove diseased plants to prevent the spread of germs. The third is to scrape off lesions from the early stage of the disease and apply the 1:3:15 Bordeaux mixture to brush the lesions. Fourth, forest grazing is forbidden, and production activities must be extended to protect tea trees in order to avoid mechanical damage and prevent the invasion of pathogens. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone BTE Hearing Aid BTE Hearing Aid Shenzhen Sunshine Technology Co.,Ltd , https://www.shenzhenyatwin.com