Mitsubishi Chemical Industries Limited

Mitsubishi Chemical Corporation

Yoshiaki Higashino

Shigeru Suzuki

Toshiki Fukuchi

Susumu Matsumoto

Hiroki Ohta

Shuko Okui

Nobuo Kyomura

Masahiro Yamada

Yoshiya Ikeda

Hirohumi Tomita

A indazole compound useful as an agricultural and horticultural insecticide, miticide, and/or fungicide which is represented by the formula set out below, wherein R.sup.1 represents hydrogen, a C.sub.1 -C.sub.4 alkyl, a C.sub.1 -C.sub.4 alkoxy, or a halogen; R.sup.2 and R.sup.3 are preferably hydrogen atoms; and R.sup.4 represents, for example, hydrogen, a C.sub.1 -C.sub.8 alkyl, a C.sub.1 -C.sub.8 alkoxy, a halogen, a C.sub.1 -C.sub.4 haloalkoxy, a 5- to 7-membered cycloalkoxy, a C.sub.1 -C.sub.4 alkylthio, a phenylamino, an N-(C.sub.1 -C.sub.4 alkyl)-phenylamino, pyrrole-yl, imidazole-yl, pyrrolidino, piperidino, or phenoxy. ##STR1##

Indazole compounds and the use thereof

A thiadiazole derivative represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen atom, halogen atom, lower haloalkyl group, lower alkoxycarbonyl group or cyano group, R.sup.3 represents hydrogen atom or halogen atom, R.sup.4 represents lower alkyl group, X represents oxygen atom or sulfur atom, as well as an insecticidal and miticidal composition containing the derivative as the effective ingredient are disclosed. The thiadiazole derivative according to the present invention has excellent controlling effect even against harmful insects and mites showing resistance to conventional insecticide.

Thiadiazole derivative, and insecticidal and miticidal composition

The present invention relates to a thiadiazole derivative of the following general formula (I) and an insecticidal and miticidal composition containing the same as an active ingredient: ##STR1## wherein A represents a group of the formula ##STR2## R.sup.1 and R.sup.2 independently represent a hydrogen atom, a halogen atom, a lower alkyl group, a trifluoromethyl group, a cyano group or a nitro group or jointly represent a methylenedioxy group, R.sup.3 represents a hydrogen atom or a lower alkyl group, R.sup.4 represents a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a monoalkylamino group having a lower alkyl group or a dialkylamino group having lower alkyl group, and n is an integer of from 1 through 3.

Thiadiazole derivative and insecticidal and miticidal composition

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Yokohama, Japan

Yoshiaki Higashino