Symptoms and causes see mulberry low temperature disorders.
Control methods (1) Choose cold-resistant or stronger varieties. The natural identification method is generally adopted, that is, when the cold injury occurs, the victimization of the tea tree is investigated and identified. The damage rate of the leaf is mainly investigated, and the damage rate is low and the resistance is strong. The resistance score can also be scored on a 5-point scale depending on the rate of sprout damage and damage to branches. The higher the score, the stronger the resistance. There are more than 600 tea cultivation cultivars in China, of which more than 250 species are cultivated in larger areas, and regions with strong or strong cold resistance can be selected for local use. The varieties with strong cold resistance include Qimen species, Huangshan species, Meizhou species, Persimmon tea, Anhui No. 1, Anhui No. 3, Anhui No. 7, Funong 95, Lechang Baimao tea, Enshi big leaf tea, and Hefeng. Moss Tea, Gao Qi Qi, Bai Hao Zao, Yixing, Aniseed Tea, Ningzhou No. 2, Ziyang Kind, Guzi Zisun, Rattan Tea, Shui Gu Tea, Longjing 43, Longjing Longye, Biyun, Moss Purple , Yingshuang, Qingfeng, Zhejiang Agricultural 113 and so on.
The varieties with strong cold resistance include Yang Shulin 783, Huangjing Tea, Bom, Fuan Dabai Tea, Zhenghe Dabai Tea, Fujian Narcissus, Benshan, Dayewulong, Fuyun No. 6, Fuyun No. 10, Bibo Tea, and Pu Pubai. Ye, Wulinghong, Lingui Dayecha, Duyun Maojian, Gengxuan 601, Xinyang species, Xinyang 10, Yichang Dayecha, Yuntaishan species, Lanshan Kucha, Jianghua Kucha, Junshan species, Qiye Qi 12 , tin tea 5, tin tea 11, wolfberry tea, No. 1, Aoyama Dayo, Taicha No. 13, Pingyun, Meifeng and so on. (2) For other methods, see mulberry low temperature barriers.
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