Sugar Alcohol Agricultural Compositions for Stable PPO Herbicide Control
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Solution Overview
Problem
Existing agricultural compositions combining PPO inhibitors and auxin herbicides face stability and efficacy issues when used together, leading to inefficiencies in weed control.
Innovation Solution
Incorporating sugar alcohols into agricultural compositions containing PPO inhibitors and optionally auxin herbicides, allowing for stable and effective concurrent or sequential application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple herbicides are applied concurrently or sequentially to control multiple weeds, then the effectiveness of weed control is improved, but the stability of the composition and efficacy upon combination deteriorates
Solution Approach 1:
The patent introduces an intermediary substance (herbicide adjuvant) that mediates between PPO inhibitors and auxin herbicides when mixed with hard water. This adjuvant prevents negative interactions between the herbicides and hard water components, maintaining both composition stability and weed control effectiveness when multiple herbicides are combined.
Solution Approach 2:
The patent changes the chemical parameters of the herbicide composition by adding specific adjuvants that modify how the herbicides interact with hard water. This parameter change allows the composition to remain stable and effective even when multiple different herbicides are mixed together, resolving the contradiction between multi-herbicide effectiveness and composition stability.
2Reliability
If multiple herbicides with different modes of action are applied together to combat herbicide resistance, then the effectiveness against resistant weeds is improved, but the complexity of ensuring stability and efficacy deteriorates
Solution Approach 1:
The herbicide adjuvant serves as a mediator that simplifies the mixing process of multiple herbicides with different modes of action. By adding this single adjuvant component, the patent enables stable combination of PPO inhibitors, auxin herbicides, and other herbicides without requiring complex formulation work, thus reducing the complexity while maintaining effectiveness against resistant weeds.
Solution Approach 2:
The adjuvant performs multiple functions simultaneously: it stabilizes PPO inhibitors, auxin herbicides, and other herbicides in hard water; prevents negative interactions between different herbicide modes of action; and maintains efficacy across various water conditions. This multi-functionality reduces the overall complexity of ensuring stability and efficacy when combining multiple herbicides.
Data Source
AI summary
The present invention is directed to an agricultural composition comprising a protoporphyrinogen oxidase (PPO) inhibitor, one or more sugar alcohols and optionally, one or more auxin herbicides. The present invention is further directed to a method of controlling weeds comprising applying concurrently or sequentially a PPO inhibitor and one or more sugar alcohols, and optionally one or more auxin herbicides to the weeds or an area in need of weed control.