Dowelanco

Glen P Jourdan

Robert G Suhr

Barry A Dreikorn

Ronald E Hackler

Eriks V Krumkalns

Michael J Coghlan

Wendell R Arnold

Peter Lee Johnson

Brian R Thoreen

Ronnie G Edie

Leon N Davis

Jack G Samaritoni

Substituted quinazolines of the formula (1): ##STR1## wherein: R.sup.1 to R.sup.4 are independently H, halo, (C.sub.1 -C.sub.4) alkyl, branched (C.sub.3 -C.sub.4) alkyl, halo (C.sub.1 -C.sub.4) alkyl, (C.sub.1 -C.sub.4) alkoxy, NO.sub.2, or NH.sub.2,

Quinazoline derivatives

N-(4-Pyridyl or 4-quinolinyl) arylacetamides, for example N-((3-chloro-2-ethyl)-4-pyridyl)(4-(4-chlorophenoxy) phenyl)-acetamide, and 4-(aralkyoxy or aralkylamino)pyridines, for example 4-[2-[4-(2,2,2-trifluoroethoxy)phenyl]ethoxy]pyridine, are active against nematodes, insects, mites, and plant pathogens.

N-(4-pyridyl or 4-quinolinyl) arylacetamide and 4-(aralkoxy or

4-substituted-pyrido[3,2-d]pyridmidine, -pyrido[4,3-d]pyrimidine, -pyrido[3,4-d]pyrimidine, pyrido[2,3-d]pyrimidine, -pteridine, -pyrimido[4,5-d]pyrimidine, -pyrimido[4,5-c]pyridazine, -pyrimido[5,4-d]pyrimidine, -pyrimido[5,4-c]pyridazine, pyrimido[4,5-d]pyridazine, and pyrimido[5,4-e]-1,2,4-triazine derivatives, for example 4-[2-(4-chlorophenyl)ethoxy]pyrido[2,3-d]pyrimidine, are useful as fungicides, inseciticides and miticides.

Pteridine derivatives

4-Aralkylpyridines, for example 4-[3-[4-[(1-methylethyl)oxy]phenyl]propyl]pyridine, are active against nematodes.

Nematicidal use of 4-aralkylpyridines

The compounds of the formula: ##STR1## wherein the substituents are herein below defined; are plant fungicides, insecticides, and miticides.

Quinoline derivatives

The compounds of the formula: ##STR1## where the substituents are herein below defined, are fungicides, insecticides, and miticides.

Substituted quinolines and cinnolines

Fungicidal compositions comprise a combination of two fungicides, one of which is a quinoline or cinnoline compound of the formula (1) ##STR1## the substituents being as described in the specification.

Quinoline and cinnoline fungicide compositions

A method of inhibiting a nematode population which comprises applying to the locus of a nematode, a nematode inactivating amount of a compound of the formula (1):

Quinoline nematicidal method

Compounds of the formula (1) ##STR1## the substituents are described in the specification. The compouns of formula (I) are plant fungicides.

Quinoline and cinnoline fungicides

A fungicidal method which comprises applying to the locus of a plant pathogen a fungicidally effective but non-phytotoxic amount of a compound of the formula (1) ##STR1## wherein: R.sup.1 to R.sup.4 are independently

Substituted quinolines and cinnolines as fungicides

Fungicidal compositions contain as active ingredient a 4-substituted-pyrido[3,2-d]pyrimidine, -pyrido[4,3-d]pyrimidine, -pyrido[3,4-d]pyrimidine, pyrido[2,3-d]pyrimidine, -pteridine, -pyrimido[4,5-d]pyrimidine, -pyrimido[4,5-c]pyridazine, -pyrimido[5,4-d]pyrimidine, -pyrimido[5,4-c]pyridazine, pyrimido[4,5-d]pyridazine, or -pyrimido[5,4-e]-1,2,4-triazine, for example 4-[2-(4-chlorophenyl)ethoxy]pyrido[2,3-d]pyrimidine.

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Morristown, IN, United States of America

Glen P Jourdan