Agricultural streptomycin sulfate, the main agent for preventing and treating bacterial diseases of crops, was banned across the country on June 14, 2016. The old agent phylloxazole has poor control effect due to its long use period. At present, to prevent and control bacterial diseases, we can choose pesticides with better control effects and higher market popularity, such as copper thiophene, copper thiazole, and zinc thiazole. "Trithiazide" is a sister product, and they are all patented products.