Agro-kanesho Co., Ltd.

Akinori Kariya

Katsumi Nanjo

Shinya Henmi

Hideyo Fujii

Kiyoshi Takasuka

Shigenori Segami

Atsushi Tsuji

Nobuo Onodera

Syuichi Usui

Noriyoshi Katsuyama

Junko Sato

Kiyoshi Kanase

Frank Wu

A hexahydrotrazine compound which is 1-(2-chloro-5-pyridylmethyl)-3,5-dimethyl-2-nitroiminohexahydro-1,3,5-triazine or 1-(2-chloro-5-thiazolylmethyl)-3,5-dimethyl-2-nitroiminiohexahydro-1,3,5-triazine and insecticides containing the same.

Hexahydrotriazine compounds and insecticides

An insecticidal, acaricidal or nematocidal composition which comprises an organophosphorus compound represented by formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each represents C.sub.1 to C.sub.4 alkyl; A represents H, C.sub.1 to C.sub.4 alkyl, C.sub.1 to C.sub.4 alkylthio or N(R.sup.4)R.sup.5 ; Z represents C(CN)R.sup.4 or N-R.sup.7 and an inert carrier show excellent effect for controlling harmful insects, mites and nematodes, do not give off a bad or irritating odor and exhibit very low toxicity to warm-blooded animals. R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are defined in the specification.

Organophosphorus compounds and insecticides, acaricides and nematocides

Insecticidal, acaricidal or nematocidal compositions which comprise a series of organophosphorus compounds represented by the compounds represented by the following structural formulae: ##STR1## show excellent effect for controlling harmful insects, mites and nematodes, do not give off a bad or irritating odor and exhibit very low toxicity to warm-blooded animals.

Organophosphorus compounds and insecticidal, acaricidal and nematocidal

Insecticidal, acaricidal or nematocidal compositions which comprise a series of organophosphorus compounds represented by the following representative structural formulae: ##STR1## show excellent effect for controlling harmful insects, mites and nematodes, do not give off a bad or irritating smell and exhibit very low toxicity to warm-blooded animals.

Organophosphorus compounds, and insecticides, acaricides and nematocides

Insecticidal, acaricidal or nematocidal compositions which comprise organophosphorus compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 each represents a C.sub.1 to C.sub.4 alkyl group;

Organophosphorus compounds and its insecticides acaricides and

Insecticides which are improved over the conventional insectides are provided by the use of a nitroguanidine compound represented by the following general formula (I): ##STR1## wherein R stands for hyydrogen or methyl; R.sup.1 and R.sup.2 are the same or different, and stand for hydrogen or methyl; and X stands for a group indicated by ##STR2## The insecticides provided by this invention are extremely active for controlling various harmful insects and yet are low in toxicity to warm-blooded animals, fishes and Crustacea, the remaining quantity thereof after their use is small, and they do not produce phytotoxicity in various plants.

Nitroguanidine compounds useful as insecticides

An insecticide having high insecticidal activities against various harmful insects, which is low in toxicity to warm-blooded animals and fishes to be used safely. The insecticide comprises a derivative of 2,3-dihydro-2,2-dimethylbenzofuran-7-yl N-(substituted sulfonylcarbamoyl)-N-methylcarbamate represented by the general formula: ##STR1## wherein X stands for a halogen atom; --NHR where R is an alkyl group, cycloalkyl group, lower alkenyl group, lower alkynyl group or ##STR2## (where Z is a hydrogen atom, halogen atom, alkyl group, alkoxy group or alkoxycarbonyl group), aralkyl group, a 5-member or 6-member heterocyclic group, or an alkoxy group.

Growing community of inventors

Higashimurayama, Japan

Akinori Kariya