The current stage is the high incidence of corn leaf spot disease, and the following prevention and control work should be done: (1) Planting varieties of disease-resistant varieties with high disease resistance. (2) Clear the field sickness, concentrate burning, or deep plowing, buried the pathogen. (3) Strengthen field management, promote robust growth of corn and enhance resistance to disease. (4) Chemical control, with 50% carbendazim WP 500 times, or 50% TB wettable powder 800 times, or 80% Mancozeb WP 500 times, or 75% 100% Bacterial strain wettable powder 500-800 times liquid, spraying 1-2 times in corn male period, spraying once every 10-15 days. Licorice Extract Powder,Organic Licorice Root Powder,Best Licorice Powder,Licorice Powder Coles jiangmen city hongsing food co., ltd. , https://www.jmhongsing.com