# US 5,703,011 A · Process and composition for controlling weeds

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- Number: US 5,703,011 A
- Document ID: US5703011A
- Status: Granted
- Kind: A
- Application number: 08/466,531
- Filed: 1995-06-06
- Granted: 1997-12-30
- Earliest claimed: 1991-01-08
- Assignees: Mycogen Corporation
- Inventors: Jerry Caulder; R. Hugh Crowley; Paul S. Zorner; Steven L. Evans
- Web page: https://patentgrep.com/patent/US5703011A

## CPC

- A01N 37/02: Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.

## Claims

### Claim 1

An agricultural composition for controlling weeds, said composition comprising a first ingredient which is a monocarboxylic acid having about seven to about twenty carbon atoms, or a salt thereof, and a second ingredient which is a chemical herbicide, wherein said chemical herbicide is clopyralid.

### Claim 2 (depends on 1)

The composition, according to claim 1, wherein said first ingredient can be represented by the following formula:
R.sub.1 Y.sub.1 Y.sub.2 COOR.sub.2
wherein
R.sub.1 =C6 to C19 saturated or unsaturated hydrocarbon, or an epoxide, or cyclopropane thereof
Y.sub.1 =H, C1-C5 hydrocarbon, or hydroxyl at any position along R.sub.1
Y.sub.2 =H, C1-C5 hydrocarbon, or hydroxyl at any position along R.sub.1
R.sub.2 =H, or salt.

### Claim 3 (depends on 1)

The composition, according to claim 1, wherein said first entity has from about seven to about eleven carbons.

### Claim 4 (depends on 1)

The composition, according to claim 1, wherein said first entity is unsubstituted.

### Claim 5 (depends on 1)

The composition, according to claim 1, wherein said first entity is saturated.

### Claim 6 (depends on 1)

The composition, according to claim 1, wherein said first entity is decanoic or nonanoic acid.

### Claim 7 (depends on 1)

The composition, according to claim 1, wherein said first entity is nonanoic acid.

### Claim 8

A method for the control of unwanted vegetation, said method comprising the administration to said vegetation of an effective amount of a composition comprising a first ingredient which is a monocarboxylic acid having about seven to about twenty carbons, or a salt thereof, and a second ingredient which is a chemical herbicide, wherein said chemical herbicide is clopyralid.

### Claim 9 (depends on 8)

The method, according to claim 8, wherein said first ingredient can be represented by the following formula:
R.sub.1 Y.sub.1 Y.sub.2 COOR.sub.2
wherein
R.sub.1 =C6 to C19 saturated or unsaturated hydrocarbon, or an epoxide, or cyclopropane thereof
Y.sub.1 =H, C1-C5 hydrocarbon, or hydroxyl at any position along R.sub.1
Y.sub.2 =H, C1-C5 hydrocarbon, or hydroxyl at any position along R.sub.1
R.sub.2 =H, or salt.

### Claim 10 (depends on 8)

The method, according to claim 8, wherein said first entity has from about seven to about eleven carbons.

### Claim 11 (depends on 8)

The method, according to claim 8, wherein said first entity is decanoic or nonanoic acid.

### Claim 12 (depends on 8)

The method, according to claim 8, wherein said first entity is nonanoic acid.

### Claim 13

A method for the control of unwanted vegetation, said method comprising the sequential application to unwanted vegetation a first composition comprising a monocarboxylic acid having about seven to about twenty carbon atoms, or a salt thereof, and a second composition comprising a chemical herbicide, wherein said chemical herbicide is clopyralid.

### Claim 14 (depends on 13)

The method, according to claim 13, wherein said monocarboxylic acid can be represented by the following formula:
R.sub.1 Y.sub.1 Y.sub.2 COOR.sub.2
wherein
R.sub.1 =C6 to C19 saturated or unsaturated hydrocarbon, or an epoxide, or cyclopropane thereof
Y.sub.1 =H, C1-C5 hydrocarbon, or hydroxyl at any position along R.sub.1
Y.sub.2 =H, C1-C5 hydrocarbon, or hydroxyl at any position along R.sub.1
R.sub.2 =H, or salt.

### Claim 15 (depends on 13)

The method, according to claim 13, wherein said monocarboxylic acid is nonanoic acid.

### Claim 16 (depends on 1)

The composition, according to claim 1, wherein said chemical herbicide is clopyralid and said first ingredient is nonanoic acid or a salt thereof.

### Claim 17 (depends on 8)

The method, according to claim 8, wherein said chemical herbicide is clopyralid and said first ingredient is nonanoic acid or a salt thereof.