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Use of 3-isoxazolidinones compounds as selective herbicides

A technology of isoxazolidinone and herbicide, which is applied in the direction of herbicide, algicide, biocide, animal repellent, etc., and can solve problems such as evolution

Active Publication Date: 2017-02-22
FMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, this latter approach has led to the evolution of herbicide-tolerant weeds, with the result that there is still a need for methods to selectively control undesirable plants in crops

Method used

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  • Use of 3-isoxazolidinones compounds as selective herbicides
  • Use of 3-isoxazolidinones compounds as selective herbicides
  • Use of 3-isoxazolidinones compounds as selective herbicides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0142] Example 1: Suspension concentrate (SC) formulation of 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone (2,4-DC)

[0143] Formulation 1A: An SC formulation of 2,4-DC was prepared by mixing 37.89% 2,4-DC, 1.50% TERGITOL TM XD (Dow Chemical Company), 1.50% DEXTROL TM OC-180 (Ashland Specialty Company), 1.00% C, 0.10% AFE 100, 6.0% propylene glycol, 0.15% M Xanthan gum (CPKelco A Huber Company), 0.15% GXL, and 42.00% water (% by weight).

[0144] In at least one embodiment, the following microencapsulation process is used to prepare the formulations of the present invention: prior to use, in a 55°C oven using a slurry and discharge vessel, an attritor, melting XD.

[0145] Preparation of KELZAN / diol slurry:

[0146] Weigh the propylene glycol into a separate container. While stirring vigorously, slowly add KELZAN M. Mix until smooth.

[0147] Prepare pre-ground slurry:

[0148] Add water to mixing container and add to tank AFE-100, XD, OC-...

Embodiment 2

[0165] Example 2: Evaluation of pre-emergence weed control by 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone in mixtures with metazachlor

[0166] The herbicidal efficiency of the compositions herein was tested in the following manner:

[0167] Dilute with water containing 2,4 DC (Example 1B) and metazachlor ( S, 43.1% active ingredient, BASF) test composition and 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone and metazachlor mixture to provide the appropriate test rate concentration.

[0168] The crops tested were wheat and oilseed rape (Brassica napus), and the weeds tested were ryegrass multiflora (IR) (ryegrass, Polygonum multiflorum (Lolium perenne.multiflorum)), bluegrass (AB) (Poa annua ( Poaannua), Chenopodium (Chenopodium album)), Chickweed (CC) (Stellaria media), and Corn Poppy (CP) ((Papaver rhhoeas) poppies).

[0169] For pre-emergence testing, for each herbicide solution's individual application score, 4 disposable fiber panels (6" x...

Embodiment 3

[0177] Example 3: Evaluation of pre-emergence weed control by 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone in mixtures with napropamide

[0178] The herbicidal efficiency of the compositions herein was tested in the following manner:

[0179] Dilute with water containing 2,4 DC (Example 1C) and napropamide ( 50-DF, 50% active ingredient, test composition of United Phosphorus Inc. and 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl-3- A mixture of isoxazolidinones and napropamide to provide the appropriate concentration for the test rate.

[0180] The crops tested were oilseed rape (Brassica napus) and wheat, and the weeds tested were ryegrass multiflora (IR) (ryegrass, Polygonum multiflorum (Lolium perenne.multiflorum)), bluegrass (AB) (Poa annua ( Poaannua)), rushes (BG) ((Alopecurus myosuroides)), wild buckwheat (WB) (Polygonum convolvulus), chickweed (CC) (Stellaria media), small seedlings (LC) (( Phalaris minor)) and wild oats (WO) (Avena fatua).

[0181] For...

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PUM

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Abstract

Herbicidal compositions are described containing either 2-(2,4-dichlorophenyl)methyl- 4,4-dimethyl-3-isoxazolidinone (2,4-DC) or 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3- isoxazolidinone (2,5-DC). Compositions containing 2,4-DC or 2,5-DC and a second herbicide are also dislcosed, where the combination does not contain both 2,4-DC and 2,5-DC. Methods of using the same compositions are also described.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 943,437, filed on February 23, 2014, and U.S. Provisional Application No. 61 / 951,269, filed on March 11, 2014, which are incorporated herein by reference in their entirety. Technical field [0003] The present invention relates to compositions and the use of at least one 3-isoxazolidinone analog herbicide selected from: 2-(2,4-dichlorophenyl)methyl-4,4-dimethyl- 3-isoxazolidinone (“2,4-DC”) and 2-(2,5-dichlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone (“2 ,5-DC”); including combinations with a second herbicide. [0004] technical background [0005] It is a long-standing goal in agriculture to protect crops from undesirable plants, called weeds, which interfere with crop growth and reduce crop yields. One way to achieve this goal is to develop selective herbicides that are able to control weeds without exhibiting unacceptable phytotoxicity to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80
CPCA01N37/22A01N43/80A01P13/02A01N25/02A01N25/04A01N25/28A01N33/22A01N37/40A01N39/02A01N41/10A01N43/10A01N43/40A01N43/56A01N43/653A01N43/70A01N43/90A01N47/36A01N25/32A01N33/10A01N37/18A01N37/34A01N43/66A01N25/30
Inventor J·F·沃特P·尼科尔森A·伯内特J·拉平G·查郝尔S·希恩F·J·小达米克
Owner FMC CORP
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