Compound for preventing and treating plant pathogenic bacteria and application thereof

The invention discloses a compound for preventing and treating plant pathogenic bacteria and application thereof. The compound is 4-allyl catechol, tests prove that the 4-allyl catechol has antibacterial activity, and when the test concentration of the compound is 1000 [mu] mol/L, the compound has a good antibacterial effect on xanthomonas campestris pv, xanthomonas oryzae pv. oryzicola, xanthomonas citri, bacterial fruit blotch of muskmelon, bacterial wilt of tomato, bacterial angular leaf spot of strawberry, bacterial angular leaf spot of mango, black rot of cabbage and soft rot of potato, and the inhibition rate is 90% or above; meanwhile, in-vivo test results show that the compound has a good inhibition effect on pathogenicity of potato soft rot fungi, and also has a good prevention and treatment effect on mango bacterial angular leaf spot bacteria and melon bacterial fruit blotch bacteria. The results show that the 4-allyl catechol has a broad-spectrum bactericidal effect on plantpathogenic bacteria. The