# US 2018/0020666 A1 · Method for treating post-emergent rice

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- Number: US 2018/0020666 A1
- Document ID: US20180020666A1
- Status: Published application
- Kind: A1
- Application number: 15/715,547
- Filed: 2017-09-26
- Published: 2018-01-25
- Earliest claimed: 2009-09-01
- Assignees: BASF SE
- Applicants: BASF SE
- Inventors: Scots L. Mankin; Leon Neuteboom; Sherry R. Whitt; Ulrich Schofl; Haiping Hong; Allan R. Wenck; Dale R. Carlson; John A. McElver; Jill M. Stevenson-Paulik
- Web page: https://patentgrep.com/patent/US20180020666A1

## CPC

- A01H 6/4636: {Oryza sp. [rice]}
- A01H 5/10: Seeds
- A01N 39/02: Aryloxy-carboxylic acids; Derivatives thereof
- A01N 43/40: six-membered rings
- C12N 15/8274: {for herbicide resistance}
- A01N 43/60: 1,4-Diazines; Hydrogenated 1,4-diazines
- A01H: NEW PLANTS OR {NON-TRANSGENIC} PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- 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
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)

## Abstract

The present disclosure provides a method for treating rice. The method comprises the steps of: providing a domestic rice crop plant and at least one ACCase-inhibiting aryloxyphenoxypropanoate herbicide selected from the group consisting of quizalofop or an ester thereof, haloxyfop, fluazifop or an ester thereof, clodinafop, clodinafop-propargyl, diclofop, and diclofop-methyl; applying an effective amount (measured in g AI/Ha) of the at least one aryloxyphenoxypropanoate herbicide to the domestic rice crop plant, post-emergence; thereby creating a treated rice plant; and growing the resulting treated rice plant.

## Claims

### Claim at position 1

1-20. (canceled)

### Claim 11 (depends on 10)

The method of claim 10, wherein the effective amount of an enantiomer of quizalofop is at least 14 g AI/Ha.

### Claim 21

A method for treating rice, comprising:
providing a domestic rice crop plant and at least one ACCase-inhibiting aryloxyphenoxypropanoate herbicide selected from the group consisting of quizalofop, an ester of quizalofop, an enantiomer of quizalofop, and a suitable salt of quizalofop;
applying an effective amount (measured in grams of active ingredient per hectare (g AI/Ha)) of the at least one aryloxyphenoxypropanoate herbicide to the domestic rice crop plant, post-emergence; thereby creating a treated rice plant; and
growing the resulting treated rice plant.

### Claim 22 (depends on 21)

The method of claim 21, further comprising harvesting seed from the treated rice plant.

### Claim 23 (depends on 21)

The method of claim 21, wherein the domestic rice crop plant comprises and expresses an endogenous non-transfected mutant ACCase nucleic acid whose sequence encodes a multi-functional, plastidic ACCase containing a mutation that causes the ACCase to be tolerant to the herbicide, the nucleic acid thereby providing to the plant tolerance to the aryloxyphenoxypropanoate herbicide.

### Claim 24 (depends on 23)

The method of claim 23, wherein said mutation is selected from the group consisting of I1781L, G2096S, and W2027C.

### Claim 25 (depends on 21)

The method of claim 21, wherein the aryloxyphenoxypropanoate herbicide is quizalofop.

### Claim 26 (depends on 25)

The method of claim 25, wherein the effective amount of quizalofop is at least 14 g AI/Ha.

### Claim 27 (depends on 21)

The method of claim 21, wherein the aryloxyphenoxypropanoate herbicide is an ester of quizalofop.

### Claim 28 (depends on 27)

The method of claim 27, wherein the effective amount of an ester of quizalofop is at least 14 g AI/Ha.

### Claim 29 (depends on 27)

The method of claim 27, wherein the ester of quizalofop is selected from the group consisting of quizalofop-P-ethyl and quizalofop-P-tefuryl.

### Claim 30 (depends on 21)

The method of claim 21, wherein the aryloxyphenoxypropanoate herbicide is an enantiomer of quizalofop.

### Claim 32 (depends on 30)

The method of claim 30, wherein the enantiomer of quizalofop is quizalofop-P.

### Claim 33 (depends on 21)

The method of claim 21, wherein the effective amount is effective for killing a weed of the genus Echinochloa.

### Claim 34 (depends on 33)

The method of claim 33, wherein the weed of the genus Echinochloa is selected from the group consisting of Echinochloa colona, Echinochloa crus-galli, Echinochloa crus-pavonis, Echinochloa oryzicola, and Echinochloa oryzoides.

### Claim 35 (depends on 21)

The method of claim 21, wherein the effective amount is effective for killing a weed of the genus Leptochloa.

### Claim 36 (depends on 35)

The method of claim 35, wherein the weed of the genus Leptochloa is selected from the group consisting of Leptochloa chinensis, Leptochloa fascicularis, Leptochloa panacea, and Leptochloa panicoides.

### Claim 37

A method for treating rice, comprising:
providing a domestic rice crop plant and at least one ACCase-inhibiting aryloxyphenoxypropanoate herbicide selected from the group consisting of quizalofop, an ester of quizalofop, an enantiomer of quizalofop, and a suitable salt of quizalofop;
applying an effective amount (measured in grams of active ingredient per hectare (g AI/Ha)) of the at least one aryloxyphenoxypropanoate herbicide to the domestic rice crop plant, post-emergence, wherein said effective amount is 0.5× of an amount that causes both at least about 90% phytotoxicity in wild type Echinochloa crus-galli and more than 10% phytotoxicity in wild-type Oryza sativa; thereby creating a treated rice plant, and
growing the resulting treated rice plant.

### Claim 38 (depends on 37)

The method of claim 37, further comprising harvesting seed from the treated rice plant.

### Claim 39 (depends on 37)

The method of claim 37, wherein the domestic rice crop plant comprises and expresses an endogenous non-transfected mutant ACCase nucleic acid whose sequence encodes a multi-functional, plastidic ACCase containing a mutation that causes the ACCase to be tolerant to the herbicide, the nucleic acid thereby providing to the plant tolerance to the aryloxyphenoxypropanoate herbicide.

### Claim 40 (depends on 39)

The method of claim 39, wherein said mutation is selected from the group consisting of I1781L, G2096S, and W2027C.