Herbicidal composition

Patent metadata

Field	Value
Publication number	US-2016000085-A1
Application number	US-201414768318-A
Country	US
Kind code	A1
Filing date	Feb 19, 2014
Priority date	Feb 22, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

At present, many herbicidal compositions have been developed and used, but they are not necessarily sufficient to control undesired plants such as weeds to be controlled in some cases, and a herbicidal composition having high activity has been desired.
A herbicidal composition comprising flazasulfuron or its salt, and at least one herbicidal compound selected from the group consisting of imazapic, hexazinone, mesotrione and their salts, and a method for controlling undesired plants using it.

First claim

1 . A herbicidal composition comprising (A) flazasulfuron or its salt and (B) at least one herbicidal compound selected from the group consisting of imazapic, hexazinone, mesotrione and their salts.

2 . The composition according to claim 1 , wherein the mixing ratio of (A) to (B) is from 1:0.2 to 1:50 by the weight ratio.

3 . The composition according to claim 2 , wherein the mixing ratio of (A) to (B) is from 1:1 to 1:30 by the weight ratio.

4 . The composition according to claim 3 , wherein (B) is at least one member selected from the group consisting of imazapic, hexazinone, mesotrione, and wherein the mixing ratio of (A) to (B) imazapic is from 1:1 to 1:15 by the weight ratio, the mixing ratio of (A) to (B) hexazinone is from 1:2 to 1:30 by the weight ratio, and the mixing ratio of (A) to (B) mesotrione is from 1:1 to 1:20 by the weight ratio.

5 . The composition according to claim 4 , wherein (A) is flazasulfuron, (B) is imazapic, and their mixing ratio is from 1:1 to 1:15 by the weight ratio.

6 . The composition according to claim 4 , wherein (A) is flazasulfuron, (B) is hexazinone, and their mixing ratio is from 1:2 to 1:30 by the weight ratio.

7 . The composition according to claim 4 , wherein (A) is flazasulfuron, (B) is mesotrione, and their mixing ratio is from 1:1 to 1:20 by the weight ratio.

8 . A method for controlling undesired plants or inhibiting their growth, which comprises applying a herbicidally effective amount of (A) flazasulfuron or its salt and a herbicidally effective amount of (B) at least one herbicidal compound selected from the group consisting of imazapic, hexazinone, mesotrione and their salts, to the undesired plants or to a place where they grow.

9 . The method according to claim 8 , wherein (A) is applied in an amount of from 10 to 100 g/ha, and (B) is applied in an amount of from 20 to 500 g/ha.

10 . The method according to claim 9 , wherein (A) is applied in an amount of from 10 to 50 g/ha, and (B) is applied in an amount of from 50 to 300 g/ha.

11 . The method according to claim 10 , wherein (A) is applied in an amount of from 10 to 50 g/ha, and (B) at least one member selected from imazapic in an amount of from 50 to 150 g/ha, hexazinone in an amount of from 100 to 300 g/ha and mesotrione in an amount of from 50 to 200 g/ha is applied.

12 . The method according to claim 11 , wherein (A) is flazasulfuron and is applied in an amount of from 10 to 50 g/ha, and (B) is imazapic and is applied in an amount of from 50 to 150 g/ha.

13 . The method according to claim 11 , wherein (A) is flazasulfuron and is applied in an amount of from 10 to 50 g/ha, and (B) is hexazinone and is applied in an amount of from 100 to 300 g/ha.

14 . The method according to claim 11 , wherein (A) is flazasulfuron and is applied in an amount of from 10 to 50 g/ha, and (B) is mesotrione and is applied in an amount of from 50 to 200 g/ha.

15 . The method according to claim 8 , wherein the undesired plants are cyperaceae, gramineae, scrophulariaceae, compositae, leguminosae, euphorbiaceae, malvaceae, convolvulaceae or amaranthaceae.

16 . The method according to claim 15 , wherein the undesired plants are gramineae, scrophulariaceae, compositae, leguminosae, malvaceae or convolvulaceae.

17 . The method according to claim 8 , wherein (A) is flazasulfuron and is applied in an amount of from 10 to 50 g/ha, and (B) is imazapic and is applied in an amount of from 50 to 150 g/ha, to control undesired plants gramineae scrophulariaceae, compositae, leguminosae, malvaceae or convolvulaceae, or inhibit their growth.

18 . The method according to claim 17 , wherein the undesired plants are summergrass ( Digitaria ciliaris (Retz.) Koel), large crabgrass ( Digitaria sanguinalis L.), wild oat ( Avena fatua L.), persian speedwell ( Veronica persica Poir.), Ambrosia artemisiifolia L., common lespedeza ( Lespedeza striata (Thunb.) Hook. et Arn.), velvetleaf ( Abutilon theophrasti MEDIC.) or field bindweed ( Convolvulus arvensis L.).

19 . The method according to claim 8 , wherein (A) is flazasulfuron and is applied in an amount of from 10 to 50 g/ha, and (B) is hexazinone and is applied in an amount of from 100 to 300 g/ha, to control undesired plants gramineae, scrophulariaceae, malvaceae or convolvulaceae, or inhibit their growth.

20 . The method according to claim 19 , wherein the undesired plants are barnyardgrass ( Echinochloa crus - galli L., Echinochloa oryzicola vasing.), shattercane ( Sorghum bicolor (L.) Moench.), persian speedwell ( Veronica persica Poir.), velvetleaf ( Abutilon theophrasti MEDIC.), ivy-leaved morningglory ( Ipomoea hederacea (L.) Jacq.) or field bindweed ( Convolvulus arvensis L.).

21 . The method according to claim 8 , wherein (A) is flazasulfuron and is applied in an amount of from 10 to 50 g/ha, and (B) is mesotrione and is applied in an amount of from 50 to 200 g/ha, to control undesired plants gramineae, leguminosae or convolvulaceae, or inhibit their growth.

22 . The method according to claim 21 , wherein the undesired plants are wild oat ( Avena fatua L.), guinea grass ( Panicum maximum Jacq.), rostrate sesbania ( Sesbania rostrata Bremek. & Oberm.) or field bindweed ( Convolvulus arvensis L.).

Assignees

• Ishihara Sangyo Kaisha

Inventors

• Yamada Ryu
• Okamoto Hiroyuki
• Terada Takashi

Classifications

• A61P13/00

  Drugs for disorders of the urinary system · CPC title

• A01N51/00

  Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring · CPC title

• A01N47/36 Primary

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

• A01N43/66

  1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms · CPC title

• A01N41/10

  Sulfones; Sulfoxides · CPC title