Synergistic Herbicide Compositions Combining Pyridine Carboxylic Acid with Glyphosate
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Solution Overview
Problem
Current herbicidal compositions and methods are inadequate for effectively controlling undesirable vegetation in agricultural settings, particularly in crops tolerant to multiple herbicides, due to limited synergistic effects and resistance mechanisms.
Innovation Solution
Development of synergistic herbicidal compositions combining 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or its esters with glyphosate or glufosinate, along with agriculturally acceptable salts and adjuvants, applied at various ratios and methods to target resistant and tolerant weeds across diverse crop types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional herbicides are used to control undesirable vegetation, then herbicidal activity is provided, but effectiveness is reduced against resistant and tolerant weed biotypes
Solution Approach 1:
The patent combines compound (I) with glyphosate or glufosinate in synergistic herbicidal compositions. This merging of different herbicidal agents with distinct modes of action overcomes weed resistance mechanisms that have developed against individual herbicides, thereby improving reliability and effectiveness against resistant and tolerant biotypes.
Solution Approach 2:
The invention creates composite herbicidal compositions containing compound (I) in combination with glyphosate or glufosinate. These composite formulations leverage the complementary modes of action of the individual components to achieve enhanced and synergistic herbicidal activity, addressing the limitation of conventional single-agent herbicides against resistant weeds.
2Productivity
If herbicidal compositions are applied to control weeds, then vegetation control is achieved, but crop damage may occur
Solution Approach 1:
The patent employs safeners in the herbicidal compositions to provide selective protection. The safener applies a protective effect locally to the crop plants, allowing them to tolerate the herbicidal action on weeds while remaining protected. This creates a differential effect where weeds are controlled but crops are spared from damage.
3Reliability
If high doses of herbicides are used to ensure weed control, then effectiveness increases, but herbicide usage and environmental impact increase
Solution Approach 1:
The patent utilizes synergistic interactions between compound (I) and glyphosate or glufosinate to achieve enhanced herbicidal activity at reduced application rates. The synergism converts the potential harm of herbicide overuse into a benefit by allowing effective weed control with lower total herbicide doses, thereby reducing environmental impact and herbicide loss.
Data Source
AI summary
Provided herein are synergistic herbicidal compositions containing (a) a compound of formula (I): 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or a derivative thereof, or an agriculturally acceptable salt or ester thereof and (b) glufosinate-ammonium, glyphosate dimethylammonium, glyphosate isopropylammonium, glyphosate trimesium, glufosinate or glyphosate, or an agriculturally acceptable derivative thereof. The methods and compositions herein provide control of undesirable vegetation, e.g., in direct-seeded, water-seeded and transplanted rice, cereals, wheat, barley, oats, rye, sorghum, com or maize, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, vegetables, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, plantation crops, aquatics, industrial vegetation management (IVM) or rights of way (ROW).