Carboxamides

Abstract

Use of carboxamides of the formula (I) in which A, R 1 , M, Q and R are as defined in the description for controlling certain rust fungi, such as soya bean rust and coffee rust, in crop protection.

1 . A method for controlling fungi in soya bean plants comprising treating soya bean plants with N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide, wherein said fungi are selected from the group consisting of  alternaria  leaf spot ( Alternaria  spec.  atrans tenuissima ), anthracnose ( Colletotrichum gloeosporoides dematium  var.  truncatum ), brown spot ( Septoria glycines ),  cercospora  leaf spot and blight ( Cercospora kikuchii ),  choanephora  leaf blight ( Choanephora infundibulifera trispora  (syn.)),  dactuliophora  leaf spot ( Dactuliophora glycines ), downy mildew ( Peronospora manshurica ),  drechslera  blight ( Drechslera glycini ), frogeye leaf spot ( Cercospora sojina ),  leptosphaerulina  leaf spot ( Leptosphaerulina trifolii ),  phyllostica  leaf spot ( Phyllosticta sojaecola ), powdery mildew ( Microsphaera diffusa ),  pyrenochaeta  leaf spot ( Pyrenochaeta glycines ),  rhizoctonia  aerial, foliage, and web blight ( Rhizoctonia solani ), scab ( Sphaceloma glycines ),  stemphylium  leaf blight ( Stemphylium botryosum ), target spot ( Corynespora cassiicola ), black root rot ( Calonectria crotalariae ), charcoal rot ( Macrophomina phaseolina ),  fusarium  blight and wilt, root rot, and pod and collar rot ( Fusarium oxysporum, Fusarium orthoceras, Fusarium semitectum, Fusarium equiseti ),  mycoleptodiscus  root rot ( Mycoleptodiscus terrestris ),  neocosmospora  ( Neocosmopspora vasinfecta ), pod and stem blight ( Diaporthe phaseolorum ), stem canker ( Diaporthe phaseolorum  var.  caulivora ),  phytophthora  rot ( Phytophthora megasperma ), brown stem rot ( Phialophora gregata ),  pythium  rot ( Pythium aphanidermatum, Pythium irregulare, Pythium debaryanum, Pythium myriotylum, Pythium ultimum ),  rhizoctonia  root rot, stem decay, and damping-off ( Rhizoctonia solani ),  sclerotinia  stem decay ( Sclerotinia sclerotiorum ),  sclerotinia  southern blight ( Sclerotinia rolfsii ), and thielaviopsis root rot ( Thielaviopsis basicola ). 
     
     
         2 . The method according to  claim 1 , wherein said fungi are selected from the group consisting of anthracnose ( Colletotrichum gloeosporoides dematium  var.  truncatum ), brown spot ( Septoria glycines ),  cercospora  leaf spot and blight ( Cercospora kikuchii ),  drechslera  blight ( Drechslera glycini ), frogeye leaf spot ( Cercospora sojina ), powdery mildew ( Microsphaera diffusa ),  rhizoctonia  aerial, foliage, and web blight ( Rhizoctonia solani ), target spot ( Corynespora cassiicola ),  sclerotinia  stem decay ( Sclerotinia sclerotiorum ), and  sclerotinia  southern blight ( Sclerotinia rolfsii ). 
     
     
         3 . The method according to  claim 1 , wherein the soya bean plants are transgenic soya bean plants. 
     
     
         4 . The method according to  claim 2 , wherein the soya bean plants are transgenic soya bean plants. 
     
     
         5 . A method of controlling fungi in soya bean plants according to  claim 1  comprising treating a crop in need of protection from fungi with
 (a) N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide as the only fungicidally active compound, and 
 (b) optionally, extenders and/or surface-active agents. 
 
     
     
         6 . The method according to  claim 5 , wherein the soya bean plants are transgenic soya bean plants.