Uniroyal Inc.

Other

Uniroyal Chemical Company, Inc.

Winchester L Hubbard

Robert E Grahame, Jr

Richard J Strunk

Richard C Moore

William A Harrison

Mark A Dekeyser

Benjamin J Pierce

Rupert A Covey

Elmar H Jancis

Shih-Yu Ma

Robert E Grahme, Jr

James N Tousignant

Chung-Ling Mao

Douglas I Relyea

Zaven Stephen Ariyan

An organophosphorus compound having the structural formula ##STR1## where R is C.sub.1 -C.sub.4 alkyl; R.sup.1 is hydrogen or methyl; or R and R.sup.1 together are a diradical having the formula --SC(Y).dbd.Z--, where Y is halogen, hydrogen or C.sub.1 -C.sub.2 alkyl; and Z is nitrogen, CH, C(CH.sub.3) or C(C.sub.2 H.sub.5) with the proviso that if Y is hydrogen, Z cannot be CH; R.sup.2 is hydrogen, chlorine or bromine; R.sup.3 is methyl or ethyl; R.sup.4 is methoxy, ethoxy, --SCH.sub.3 or --SC.sub.2 H.sub.5 ; and X is oxygen or sulfur and their hydrochlorides is disclosed. These compounds are useful as insecticides or nematocides. In another aspect of this invention a method of controlling rice planthoppers is provided. In this method an insecticidally effective amount of a compound having the formula given above where R is C.sub.1 -C.sub.4 alkyl or benzyl; R.sup.1 is hydrogen or C.sub.1 -C.sub.3 alkyl; or R and R.sup.1 together are a diradical selected from the group consisting of --CH.dbd.CH--CH.dbd.CH--, --CH.dbd.CCl--CH.dbd.CH--, --CH.dbd.C(CH.sub.3)--CH.dbd.CH-- and --SC(Y).dbd.Z--, where Y is halogen, hydrogen or C.sub.1 -C.sub.2 alkyl; and Z is nitrogen, CH, C(CH.sub.3) or C(C.sub.2 H.sub.5); R.sup.2 is hydrogen or bromine; R.sup.3 is methyl or ethyl; R.sup.4 is methoxy, ethoxy or propylthio, with the proviso that if R.sup.2 is bromine, R.sup.4 is propylthio, and X is oxygen or sulfur is applied to the loci where rice planthoppers reside.

Substituted pyrimidinyl organophosphorus insecticides

A method is disclosed for combating the soil insect, corn rootworm which comprises contacting the corn rootworm with an effective amount of N-methyl 2-(1-methylethyl)phenylcarbamate.

Control of corn rootworm by application of N-methyl

An organophosphorus compound of the formula ##STR1## where R and R.sup.1 together form a 1,3-butadien-1,4-diyl group optionally substituted with a chloro group, or R and R.sup.1 together form a 1,2-ethenediylthio group wherein sulfur is attached to carbon; R.sup.2 is hydrogen, chlorine or bromine; X is O or S; R.sup.3 is C.sub.1 -C.sub.2 alkyl; and R.sup.4 is C.sub.1 or C.sub.2 alkoxy or propylthio is disclosed. The organophosphorus compounds defined above are effective in the control of insects, nematodes and acarids.

A compound of the formula ##STR1## wherein R and R.sup.1 together form a 1,3-butadien-1,4-diyl group optionally substituted with a methyl or chloro group and R.sup.2 is halogen is disclosed. The compound is useful as an intermediate in the synthesis of insecticidal organophosphorus compounds.

Pyridopyrimidinone compounds

Certain 2-(3-pyridyl) thiazoles are useful for the control of insects, and are particularly effective against aphids. Many of these thiazoles are new compounds.

2-(3-Pyridyl)-5-thiazolecarboxamides

Tetrasubstituted organotin compounds, which are useful for controlling insects and other pests and which also exhibit herbicidal activity, are disclosed. Many of these organotin compounds are new compounds.

Tetrasubstituted organotin compounds

Organotin sulfinates are useful for controlling insects and acarids. Certain of these organotin sulfinates are novel compounds.

Organotin sulfinates as insecticides and acaricides

The use of di- and triaryl-substituted thiazoles as pesticides is disclosed. Insects, such as mosquitos, and acarids, such as mites and ticks, are among the pests which may be controlled.

Aryl-substituted thiazoles

Disclosed are N-substituted triorganostannylhydrocarbylcarboxylic acid hydrazides useful as insecticides.

N-substituted triorganostannylhydro-carbylcarboxylic acid hydrazides

Substituted thiophenes of the following formula, some of which are new compounds, are useful in controlling certain pests, particularly mites: ##STR1## wherein A, Y and Z are various substituents such as phenyl and substituted phenyl.

Thiophenes useful in control of acarids

Tetrasubstituted organotin compounds, which are useful for controlling insects and other pests, are disclosed. Many of these organotin compounds are new compounds.

Method for controlling insects with tetrasubstituted organotin compounds

Method of controlling insects and acarids with certain aryl-substituted

Thiazoles and their use in controlling insects and pests

Compounds having either of the structures ##STR1## have strong acaricidal activity, in which R is a phenyl or naphthyl group, or phenyl with certain designated substitution. Thus, mites may be controlled on such crops as cotton by applying such compounds as 2-(1-naphthyl)benzothiazoline or 2-(5-t-butyl-2-hydroxyphenyl)benzothiazole.

Growing community of inventors

Woodbridge, CT, United States of America

Winchester L Hubbard