Compound for preventing and treating plant bacterial diseases, and application thereof

The invention discloses a compound for preventing and treating plant bacterial diseases, and application thereof. The compound is sulforaphane. Under the in-vitro condition, the sulforaphane has bacterial inhibition activity, and when the test concentration of the compound is 1000 mg/L, the compound has a very good bacteriostatic effect on citrus canker pathogen, mango bacterial angular leaf spot pathogen, pepper bacterial wilt pathogen, rice bacterial leaf streak pathogen, strawberry bacterial angular leaf spot pathogen, potato soft rot pathogen and cassava bacterial wilt pathogen, and the inhibition rate is 90% or above; meanwhile, a living test result shows that the sulforaphane also has a good prevention and treatment effect on pepper bacterial wilt, rice bacterial leaf streak and mango bacterial angular leaf spot, and can be used for preventing and treating agricultural bacterial diseases. The sulforaphane is used as an active substance to be used as a bactericide or a bacteriostatic agent for preventing