Patent ID: 6939882

Claim:
A method of combating plant fungi at a locus infested or liable to be infested therewith, which comprises applying to the locus a sufficient amount of a phytopathogenie fungicide to combat said plant fungi, said phytopathogenic fungicide comprising a compound of general formula I or salts thereof; where A 1 is 3-Cl-5-CF 3 -2-pyridyl; A 2 is optionally substituted heterocyclyl or optionally substituted carbocyclyl; excepted where L is —N(R 3 )N(R 4 )C(═O)— or —CH 2 OCH 2 —, then A 2 can not be a heterocyclyl containing N or O; L is a 3-atom linker of formula —N(R 3 )N(R 4 )C(═X)—; wherein A 1 is attached to the left hand side of linker L; where R 1 and R 2 , which may be the same or different, are R b , cyano, nitro, halogen, —OR b , —SR b or optionally substituted amino; R 3 and R 4 , which may be the same or different, are R b , cyano or nitro; or any R 1 , R 2 , R 3 or R 4 group, together with the interconnecting atoms, can form a 5- or 6-membered ring with any other R 1 , R 2 , R 3 or R 4 , or any R 1 , R 2 , R 3 or R 4 group, together with the interconnecting atoms can form a 5- or 6-membered ring with A 2 ; X is oxygen, sulfur, N—OR b , or N—(R b ) 2 ; and Y is halogen, —OR b , —SR b , —N(R b ) 2 , —NR b (OR b ) or NR b N(R b ) 2 ; wherein R b is alkyl, alkenyl, alkynyl, carbocyclyl or heterocyclyl, each of which may be substituted; or hydrogen or acyl, or two adjacent R b groups together with the nitrogen atom to which they are attached may form a 5- or 6-membered ring.