1. Tea picking in batches and picking tea in time can reduce the infection and reduce the incidence of the disease. 2. Advocate the use of compost made from fermented bacteria, increase compound fertilizers, increase tree vigor, and increase resistance to disease. 3. Spray 75% chlorothalonil wettable powder 750 times or 36% thiophanate-methyl suspending liquid 600 times and 50% benomyl WP 1500 times from the end of March to early April. Liquid, 70% mancozeb WP 500 times, 25% carbendazim WP 500 times. Sweetener is a food additive that provides a sweet taste like that of sugar while containing significantly less food energy. Some sugar substitutes are natural and some are synthetic. It allows you to enjoy sweet tasting foods without the extra kilojoules from sugar. It can be beneficial for anyone trying to lose weight and control their sugar intake. Sweetener also does not contribute to tooth decay, as they are not broken down to acid by bacteria in dental plaque. Natural Sweeteners,Xylitol Sweetener,Healthy Sweeteners,Food Sweeteners SINOCHEM PHARMACEUTICAL CO., LTD , https://www.sinochemnutrition.com