Herbicidal composition comprising flazasulfuron and an inhibitor of protoporphyrinogen oxidase

Patent metadata

Field	Value
Publication number	US-9415057-B2
Application number	US-201214110209-A
Country	US
Kind code	B2
Filing date	Apr 6, 2012
Priority date	Apr 11, 2011
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

Many herbicidal compositions have been developed and are presently used. However, weeds to be controlled are various in types and their emergence extends over a long period. Accordingly, it is desired to develop a herbicidal composition which has a broad herbicidal spectrum, a high activity and a long-lasting effect.
The present invention provides a herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one protoporphyrinogen oxidase inhibitor selected from the group consisting of a phenylpyrazole compound, a triazolinone compound, a N-phenylphthalimide compound, a pyrimidindione compound, an oxadiazole compound, an oxazolidinedione compound, a thiadiazole compound, pyraclonil, profluazol, flufenpyr-ethyl and their salts. According to the present invention, a herbicidal composition which has a broad herbicidal spectrum, a high activity and a long-lasting effect can be provided.

First claim

The invention claimed is:

1. A method for controlling an undesired plant or inhibiting growth of an undesired plant, which comprises applying a herbicidally effective amount of a herbicidal composition comprising (A) flazasulfuron or its salt and (B) saflufenacil or its salts, to the undesired plant or to a place where the undesired plant grows, wherein the undesired plant is persian speedwell, wild oat, velvet leaf, ivy-leaved morning glory or shattercane, wherein (A) is applied in an amount of from 12.5 to 100 g/ha, and (B) is applied in an amount of from 5 to 100 g/ha, and the composition presenting a synergistic herbicidal effect.

2. The method according to claim 1 , further comprising applying at least one of pyraflufen-ethyl, carfentrazone-ethyl, sulfentrazone, flumioxazin, oxadiargyl, fluthiacet-methyl, flufenpyr-ethyl, butafenacil, pentoxazone, and pyraclonil, and their salts, to the undesired plant or to the place where the undesired plant grows.

3. A method for controlling an undesired plant or inhibiting growth of an undesired plant, which comprises applying herbicidally effective amounts of (A) flazasulfuron or its salt and (B) saflufenacil or its salts, to the undesired plant or to a place where the undesired plant grows, wherein the undesired plant is persian speedwell, wild oat, velvet leaf, ivy-leaved morning glory or shattercane, wherein (A) is applied in an amount of from 12.5 to 100 g/ha, and (B) is applied in an amount of from 5 to 100 g/ha and the combination (A) and (B) presenting a synergistic herbicidal effect.

4. The method according to claim 3 , further comprising applying at least one of pyraflufen-ethyl, carfentrazone-ethyl, sulfentrazone, flumioxazin, oxadiargyl, fluthiacet-methyl, flufenpyr-ethyl, butafenacil, pentoxazone, and pyraclonil, and their salts, to the undesired plant or to the place where the undesired plant grows.

Assignees

• Yamada Ryu
• Okamoto Hiroyuki
• Terada Takashi
• Ishihara Sangyo Kaisha

Inventors

• Yamada Ryu
• Okamoto Hiroyuki
• Terada Takashi

Classifications

• A01N39/04

  Aryloxy-acetic acids; Derivatives thereof · CPC title

• A01N43/90

  having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system · CPC title

• A01N43/84

  six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4 · CPC title

• A01N43/56

  1,2-Diazoles; Hydrogenated 1,2-diazoles · CPC title

• A01N47/36 Primary

  containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof · CPC title