Synergistic herbicide/fungicide composition containing certain pyridine carboxylic acids and certain fungicides

• US 9,101,136 B2
• Filed: 02/17/2011
• Issued: 08/11/2015
• Est. Priority Date: 02/19/2010
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Satchivi, Norbert M., Schmitzer, Paul R.
• Primary Examiner(s): Pak, John
• Assistant Examiner(s): Holt, Andriae M
• Application Number:
  US13/029,253
• Publication Number:
  US 20110207607A1
• Time in Patent Office: 1,636 Days
• Field of Search: 504/105
• US Class Current: 1/1
• CPC Class Codes: A01N 2300/00 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 Class Codes: A01N 25/32 Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
• CPC Class Codes: A01N 35/04 containing aldehyde or keto groups, or thio analogues thereof, directly attached to an aromatic ring system, e.g. acetophenone; Derivatives thereof, e.g. acetals
• CPC Class Codes: A01N 37/34 Nitriles
• CPC Class Codes: A01N 37/50 the nitrogen atom being doubly bound to the carbon skeleton
• CPC Class Codes: A01N 43/30 with two oxygen atoms in positions 1,3, condensed with a carbocyclic ring
• CPC Class Codes: A01N 43/40 six-membered rings
• CPC Class Codes: A01N 43/42 condensed with carbocyclic rings
• CPC Class Codes: A01N 43/46 rings with more than six members
• CPC Class Codes: A01N 43/54 1,3-Diazines; Hydrogenated 1,3-diazines
• CPC Class Codes: A01N 43/653 1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
• CPC Class Codes: A01N 47/14 Di-thio analogues thereof
• CPC Class Codes: A01N 47/18 containing a —O—CO—N< group, or a thio analogue thereof, directly attached to a heterocyclic or cycloaliphatic ring
• CPC Class Codes: A01N 47/24 containing the groups , or; Thio analogues thereof
• CPC Class Codes: A01N 47/34 containing the groups , e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
• CPC Class Codes: A01N 47/38 containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof

Abstract

An herbicide/fungicide composition containing (a) a pyridine carboxylic acid component and (b) a fungicide component provides synergistic control of selected weeds.

Claims

1. A synergistic herbicide/fungicide mixture comprising an herbicidally effective amount of (a) a pyridine carboxylic acid herbicide of the formula (I)

2. The synergistic mixture of claim 1 additionally comprising an herbicide safener.

3. The synergistic mixture of claim 2 in which the herbicide safener is cloquintocet-mexyl.

4. An herbicidal composition comprising an herbicidally effective amount of the synergistic herbicide/fungicide mixture of claim 1 and an agriculturally acceptable adjuvant or carrier.

5. The synergistic mixture of claim 1, wherein the fungicide is azoxystrobin.

6. The synergistic mixture of claim 1, wherein the fungicide is carbendazim.

7. The synergistic mixture of claim 1, wherein the fungicide is chlorothalonil.

8. The synergistic mixture of claim 1, wherein the fungicide is cyproconazole.

9. The synergistic mixture of claim 1, wherein the fungicide is cyprodinil.

10. The synergistic mixture of claim 1, wherein the fungicide is epoxiconazole.

11. The synergistic mixture of claim 1, wherein the fungicide is flutriafol.

12. The synergistic mixture of claim 1, wherein the fungicide is kresoxim-methyl.

13. The synergistic mixture of claim 1, wherein the fungicide is mancozeb.

14. The synergistic mixture of claim 1, wherein the fungicide is metconazole.

15. The synergistic mixture of claim 1, wherein the fungicide is metrafenone.

16. The synergistic mixture of claim 1, wherein the fungicide is prochloraz.

17. The synergistic mixture of claim 1, wherein the fungicide is propiconazole.

18. The synergistic mixture of claim 1, wherein the fungicide is proquinazid.

19. The synergistic mixture of claim 1, wherein the fungicide is prothioconazole.

20. The synergistic mixture of claim 1, wherein the fungicide is pyraclostrobin.

21. The synergistic mixture of claim 1, wherein the fungicide is quinoxyfen.

22. The synergistic mixture of claim 1, wherein the fungicide is spiroxamine.

23. The synergistic mixture of claim 1, wherein the fungicide is tebuconazol.

24. The synergistic mixture of claim 1, wherein the fungicide is trifloxystrobin.

25. The synergistic mixture of claim 1, wherein the fungicide is the picolinamide fungicide of formula (II).

26. The synergistic mixture of claim 1, wherein the fungicide is fenpropidin.

27. The synergistic mixture of claim 1, wherein the fungicide is iprodione.

28. The synergistic mixture of claim 1, wherein the fungicide is picoxystrobin.

29. The synergistic mixture of claim 1, wherein the fungicide is tetraconazole.

30. The synergistic mixture of claim 1, wherein the fungicide is thiophanate-methyl.

31. A method of controlling undesirable vegetation which comprises contacting the vegetation or the locus thereof with or applying to the soil or water to prevent reduce the emergence or growth of vegetation an herbicidally effective amount of a synergistic herbicide/fungicide mixture comprising an herbicidally effective amount of (a) a pyridine carboxylic acid herbicide of the formula (I)

32. The method of claim 31, wherein the undesirable vegetation is controlled in cereals.

33. The method of claim 31, wherein the components of the synergistic herbicide/fungicide mixture are applied either separately or as part of a multipart herbicidal system.

34. The method of claim 31, wherein the synergistic herbicide/fungicide mixture is applied at an application rate of between about 10 grams per hectare (g/ha) and about 1235 g/ha based on the total amount of the pyridine carboxylic acid of formula (I) component and the fungicide component.

35. The method of claim 34, wherein the fungicide component is applied at an application rate of between about 60 g/ha and about 1200 g/ha and the pyridine carboxylic acid of formula (I) component is applied at an application rate of between about 1 g/ha and about 35 g/ha.

36. The method of claim 31, further comprising contacting the vegetation or the locus thereof with or applying to the soil or water an herbicide safener.

37. The method of claim 36, wherein a safener component is applied at an application rate of between about 0.05 g/ha and about 35 g/ha.