Herbicidal composition

Patent metadata

Field	Value
Publication number	US-9420794-B2
Application number	US-201314401996-A
Country	US
Kind code	B2
Filing date	May 28, 2013
Priority date	May 28, 2012
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

To provide a high active herbicidal composition having a broader herbicidal spectrum against a wide variety of weeds to be controlled.
A herbicidal composition comprising (a) nicosulfuron or its salt, (b) dimethenamid-P or its salt and (c) topramezone or its salt. This herbicidal composition has a wide herbicidal spectrum and has high activity.

First claim

The invention claimed is:

1. A herbicidal composition comprising in combination, (a) nicosulfuron or its salt, (b) dimethenamid-P or its salt and (c) topramezone or its salt, wherein the mixing ratio of (a) to (b) is from 1:2.5 to 1:150 by the weight ratio, and the mixing ratio of (a) to (c) is from 6.7:1 to 1:10 by the weight ratio.

2. The herbicidal composition according to claim 1 , which is used to control convolvulaceae, solanaceae, gramineae, malvaceae, compositae or leguminosae , or to inhibit their growth.

3. A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of a herbicidal composition comprising, in combination, (a) nicosulfuron or its salt, a herbicidally effective amount of (b) dimethenamid-P or its salt, and a herbicidally effective amount of (c) topramezone or its salt, to the undesired plants or to a place where they grow, wherein (a) is applied in an amount of from 10 to 100 g/ha, (b) is applied in an amount of from 250 to 1,500 g/ha, and (c) is applied in an amount of from 15 to 100 g/ha.

4. The method according to claim 3 , wherein the undesired plants are convolvulaceae, solanaceae, gramineae, malvaceae, compositae or leguminosae.

5. The method according to claim 3 , wherein the undesired plants are gramineae, malvaceae, compositae or leguminosae.

6. The method according to claim 3 , wherein the undesired plants are annual or perennial gramineae.

7. The method according to claim 3 , wherein the undesired plants are strongly noxious weeds in corn fields.

8. The method according to claim 3 , wherein the undesired plants are annual and perennial gramineae selected from the group consisting of Echinochloa spp., Digitaria spp., Setaria spp., Poa spp., Avena spp., Agropyron spp., Alopecurus spp., Eleusine spp., Rottboellia spp., Sorghum spp. and Panicum spp., which are problematic as noxious weeds in corn fields.

Assignees

• Ishihara Sangyo Kaisha

Inventors

• Yamada Ryu
• Okamoto Hiroyuki
• Terada Takashi

Classifications

• A01N43/10

  with sulfur as the ring hetero atom · CPC title

• A01N47/36 Primary

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

• A01N43/80

  five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2 · CPC title

• A01N2300/00

  Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48 · CPC title