| abstract |
Referring to a plant disease control agent that comprises a compound of formula (1) as active ingredient, where X1 and X4 are identical or different from each other, they represent H, F, Cl or trifluoromethyl, at least one of X1 and X4 represents fluorine or trifluoromethyl; X2 and X3 are identical or different from each other, and represent H, F, Cl or methyl, and when one of X1, X2 and X4 represents fluorine, any of the other two do not represent hydrogen; Xa represents a group of formula (2), (3), (4) or (5). These compounds induce high resistance while reducing damage without exhibiting direct antimicrobial activities against plant pathogens. It also refers to a plant disease control method comprising the use of said control agent. |