Synergistic herbicidal composition containing chloroacetanilides and picolinic acids

• US 20080242546A1
• Filed: 03/06/2008
• Published: 10/02/2008
• Est. Priority Date: 03/30/2007
• Status: Abandoned Application

• Current Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Nagy, Peter, Bernhard, Hans U., Schultz, Marvin E., Daniau, Pierre
• Application Number:
  US12/074,809
• Publication Number:
  US 20080242546A1
• Time in Patent Office: Days
• US Class Current: 504/130
• 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 37/26 containing the group; Thio analogues thereof
• CPC Class Codes: A01N 43/40 six-membered rings
• CPC Class Codes: A01N 43/56 1,2-Diazoles; Hydrogenated 1,2-diazoles

Abstract

An herbicidal composition containing (a) an herbicidal chloroacetanilide component and (b) an herbicidal picolinic acid component provides synergistic control of selected broadleaf weeds.

Claims

1. An herbicidal mixture comprising an herbicidally effective amount of (a) a chloroacetanilide compound selected from the group of acetochlor, alachlor, butachlor, dimethenamid P, metazachlor, metolachlor, propachlor and mixtures thereof and (b) a picolinic acid compound selected from the group of clopyralid, picloram, aminopyralid and mixtures thereof.

2. The mixture of claim 1 in which the chloroacetanilide compound is acetochlor or metazachlor.

3. The mixture of claim 2 in which the picolinic acid compound is a mixture of clopyralid and picloram.

4. The mixture of claim 2 in which the picolinic acid compound is a mixture of clopyralid, picloram and aminopyralid.

5. The mixture of claim 2 in which the picolinic acid compound is a mixture of picloram and aminopyralid.

6. The mixture of claim 1 in which the weight ratio of the chloroacetanilide component to the picolinic acid component is between about 500:

1 and about 6;

1

7. An herbicidal composition comprising an herbicidally effective amount of the herbicidal mixture of claim 1 and an agriculturally acceptable adjuvant or carrier.

8. A method of controlling undesirable vegetation which comprises contacting the vegetation or the locus thereof with or applying to the soil to prevent the emergence of vegetation an herbicidally effective amount the herbicidal mixture of claim 1.