SYNERGISTIC HERBICIDE/FUNGICIDE COMPOSITION CONTAINING CERTAIN PYRIDINE CARBOXYLIC ACIDS AND CERTAIN FUNGICIDES

• US 20110207607A1
• Filed: 02/17/2011
• Published: 08/25/2011
• Est. Priority Date: 02/19/2010
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Schmitzer, Paul R., Satchivi, Norbert M.
• Granted Patent: US 9,101,136 B2
• Time in Patent Office: Days
• US Class Current: 504/105
• 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)

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

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

5. The synergistic mixture of claim 1 or 2 in which the weight ratio of the pyridine carboxylic acid herbicide component to the fungicide component is between about 3.5:

1 and about 1;

1200.

6. An herbicidal composition comprising an herbicidally effective amount of the synergistic herbicide/fungicide mixture of claim 1 or 2 and an agriculturally acceptable adjuvant or carrier.

7. 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 the emergence or growth of vegetation an herbicidally effective amount the synergistic herbicide/fungicide mixture of claim 1 or 2.

8. A method of controlling undesirable vegetation in cereals which comprises contacting the vegetation or the locus thereof with or applying to the soil or water to prevent the emergence or growth of vegetation an herbicidally effective amount the synergistic herbicide/fungicide mixture of claim 1 or 2.

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