Kasugamycin is a agricultural fungicide. It has excellent control and treatment effects on rice blast on rice. Prevention and treatment of watermelon bacterial leaf spot, peach flow gum disease, scab, perforation and other diseases have special effects.Kasugamycin's active ingredient of kasugamycin is the hydrochloride of the secretion of small gold actinomycetes, which interferes with the esterase system of amino acid metabolism, thereby affecting protein synthesis and inhibiting mycelial elongation and causing cell pelletization to sterilize and inhibit the growth of fungi.