Pyridate–4-HPPD Herbicide Composition for Lower-Rate Weed Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing herbicides face challenges in achieving targeted synergistic activity against specific species of unwanted vegetation, require higher application rates for effective control, and often result in reduced selectivity and environmental contamination due to chemical, physical, or biological incompatibilities among multiple active compounds.
Innovation Solution
A synergistically effective herbicide composition combining pyridate with specific 4-HPPD inhibitors, such as mesotrione, topramezone, tembotrione, and sulcotrione, at optimized weight ratios, enhancing herbicidal activity through a synergistic effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher application rates of herbicides are used to achieve effective control of unwanted vegetation, then herbicidal activity is improved, but environmental contamination and active compound input increase
Solution Approach 1:
The patent combines pyridate with specific 4-HPPD inhibitors (mesotrione, topramezone, tembotrione, or sulcotrione) in a synergistic mixture. This merging of two different herbicide modes of action allows achieving effective weed control at lower application rates, thereby reducing environmental contamination while maintaining or improving herbicidal activity.
Solution Approach 2:
The invention creates a composite herbicide formulation containing pyridate and a 4-HPPD inhibitor in specific weight ratios (0.1:1 to 10:1). This composite material leverages the complementary mechanisms of action between photosystem II inhibition (pyridate) and 4-HPPD inhibition (the second component), producing synergistic effects that enhance efficacy while allowing reduced application rates.
2Reliability
If multiple active compounds are combined to achieve targeted synergistic activity, then control of resistant species is improved, but chemical, physical or biological incompatibility occurs
Solution Approach 1:
The patent specifies precise weight ratio parameters for combining pyridate and 4-HPPD inhibitors (0.1:1 to 10:1, preferably 0.5:1 to 5:1). By optimizing these compositional parameters, the invention achieves synergistic herbicidal activity while maintaining chemical compatibility and preventing decomposition or antagonism between the active compounds.
3Reliability
If multiple active compounds are combined to achieve targeted synergistic activity, then herbicidal efficacy is improved, but selectivity and safety of operation are reduced
Solution Approach 1:
The patent merges pyridate (a photosystem II inhibitor) with 4-HPPD inhibitors to create a synergistic combination that enhances herbicidal efficacy against broadleaf weeds and grasses. This combination allows for reduced application rates while maintaining or improving selectivity and safety profiles compared to using higher rates of single herbicides.
Data Source
AI summary
The current invention concerns a synergistically effective herbicide composition comprising as component (A) an herbicidally active amount of pyridate and as component (B) at least one 4-HPPD inhibitor selected from the group comprising triketones, pyrazolones, isoxazoles and other 4-HPPD inhibitors, wherein a weight ratio of components (A) and (B) is in a range up to 1000:1.The invention further concerns a kit comprising pyridate and at least one 4-HPPD inhibitor and a use of a herbicide composition according to the invention in an amount effective for controlling one or more types of unwanted vegetation by applying the herbicide composition to the unwanted vegetation and/or a habitat thereof.