# US 4,392,883 A · Herbicidal composition and process

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- Number: US 4,392,883 A
- Document ID: US4392883A
- Status: Granted
- Kind: A
- Application number: 06/237,093
- Filed: 1981-02-23
- Granted: 1983-07-12
- Earliest claimed: 1981-02-23
- Assignees: Kumiai Chemical Industry Co., Ltd.
- Inventors: Shinichi Iori; Ikuo Kajiwara; Kazuo Jikihara
- Web page: https://patentgrep.com/patent/US4392883A

## CPC

- A01N 47/12: containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

A herbicidal composition is provided which is characterized by the combination use as active ingredients of a thiocarbamate derivative of formula I: ##STR1## wherein one of X and Y is a hydrogen and the other is a chlorine and 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5(4H)-one of the formula: ##STR2## Also provided is a process of inhibiting the growth of unwanted plants by applying the herbicidal composition to the plants or to the soil where the plants are grown.

## Claims

### Claim 1

A herbicidal composition for inhibiting growth of smartweed, goosefoot and barnyardgrass consisting essentially of an effective amount of a mixture of a thiocarbamate derivative of the general formula: ##STR7## wherein one of X and Y represents a hydrogen atom and the other is a chlorine atom, and 4-amino-3-methyl-6-phenyl-1,2,4-triazin-5(4H)-one of the formula: ##STR8## in a ratio of 1:1 to 4:1 by weight as active ingredients.

### Claim 2 (depends on 1)

A herbicidal composition as claimed in claim 1 wherein the ratio of the compound of formula I and the compound of formula II is 2:1 by weight.

### Claim 3

A process of inhibiting the growth of smartweed, goosefoot and barnyard grass which comprises applying to the plants or to the soil where the plants are grown 5-8 kg per hectare of a composition consisting essentially of a mixture of a thiocarbamate derivative of the general formula: ##STR9## wherein one of X and Y represents a hydrogen atom and the other is a chlorine atom, and 4-amino-3-methyl-6-phenyl-1,2,4-triazin-4(4H)-one of the formula: ##STR10## in a ratio of 1:1 to 4:1 by weight as active ingredients.

### Claim 4 (depends on 3)

A process as claimed in claim 3 wherein the ratio of the compound of formula I and the compound of formula II is 2:1.