METHOD OF COMBATING HARMFUL FUNGI

摘要

The invention concerns a method of combating harmful fungi which is characterized in that the fungi, their biosphere or the materials, plants, seeds, soils, surfaces or areas to be protected from fungal infection are treated simultaneously together or separately or successively with an active substance I which inhibits the respiration of cytochrome complex III and a) with an active substance of formula IIA, R1-CO-NR2-OR3, in which the substituents have the following meanings: R1 is hydrogen, alkyl, alkenyl or alkynyl, cycloalkyl or cycloalkenyl, optionally substituted aryl, hetaryl, heterocyclyl, arylcarbonyl or hetarylcarbonyl, R2, R3 designate hydrogen, alkyl or aryl, or b) with an active substance of formula IIB, Ra-CO-NRb-Rc, in which the substituents have the following meanings: Ra is optionally substituted phenyl, furyl, dihydropyranyl, oxathi-inyl, oxathi-inyl dioxide, pyridyl or thiazolyl; Rb is hydrogen, alkyl or alkoxy; Rc is optionally substituted phenyl or cyclohexyl, and mixtures suitable therefor.