Abstract:
The present invention relates to the use of strobilurine type compounds of formula I and the N-oxides and the salts thereof for combating phytopathogenic fungi containing a mutation in the mitochondrial cytochrome b gene conferring resistance to Qo inhibitors, and to methods for combating such fungi. The invention also relates to novel compounds, processes for preparing these compounds, to compositions comprising at least one such compound, to plant health 10 applications, and to seeds coated with at least one such compound.
Abstract:
The invention relates to a method for immunizing plants against bacterioses, characterized in that the plants, the soil, or seeds are treated with an effective quantity of a compound of formula (I), wherein: X represents halogen, C1-C4 alkyl or trifluoromethyl; m is equal to 0 or 1; Q represents C (=CH-CH3) -COOCH3, C (=CH-OCH3) -COOCH3, C (=CH-OCH3) -CONHCH3, C (=N-OCH3) -COOCH3, C (=N-OCH3) -CONHCH3 or N (-OCH3) -COOCH3; A represents -O-B, -CH2O-B, -CH2S-B, -OCH2-B, -CH=CH-B, -C=C-B, -CH2O-N=C (R1) -B or -CH2O-N=C (R1) -C (R2) =N-OR3, whereby B represents optionally substituted phenyl, naphthyl, 5-membered or 6-membered hetaryl or 5-membered or 6-membered heterocyclyl, containing one to three N atoms and/or one O atom or S atom or one or two O atoms and/or S atoms; R1 represents hydrogen, cyano, alkyl, alkyl halide, cycloalkyl, alkoxy; R2 represents optionally substituted phenyl, phenylcarbonyl, phenylsulfonyl, 5-membered or 6-membered hetaryl, 5-membered or 6-membered hetarylcarbonyl or 5-membered or 6-membered hetarylsulfonyl, or alkyl, cycloalkyl, alkenyl, alkynyl, alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl, alkylsulfonyl, or C (=NORα) -ORβ, and; R3 represents hydrogen, optionally substituted alkyl, alkenyl and alkynyl. This effective quantity of the compound is absorbed by the plants or seeds.