Seed Diamide Coating Mitigates PPO-Inhibitor Phototoxicity
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Solution Overview
Problem
Current methods for controlling pests in soybean, corn, and cotton fields are inadequate in effectively managing weeds and harmful arthropods without causing significant phototoxicity to crops.
Innovation Solution
A method involving the application of diamide compounds to seeds and PPO-inhibiting compounds to the field before, at, or after seeding, using a combination of known compounds like flumioxazin, sulfentrazone, and chlorantraniliprole to control pests by inhibiting protoporphyrinogen IX oxidase and targeting calcium channels in insects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PPO-inhibiting compounds are applied to control weeds, then weed control effectiveness is improved, but phototoxicity to crops increases
Solution Approach 1:
The patent introduces diamide compounds as intermediary substances applied to seeds, which act as protectors against the phototoxic effects of PPO-inhibiting compounds. The diamide compounds on the seed surface create a protective layer that mitigates the harmful phototoxicity while allowing the PPO-inhibiting compounds to effectively control weeds in the field.
Solution Approach 2:
The patent applies diamide compounds to seeds before planting as a preliminary protective measure. This pre-application ensures that the seeds are coated with the protective diamide compound prior to exposure to sunlight and PPO-inhibiting compounds in the field, preventing phototoxicity before it occurs while maintaining weed control effectiveness.
2Reliability
If multiple pesticide compounds are combined for pest control, then pest control effectiveness is improved, but complexity of application increases
Solution Approach 1:
The patent combines diamide compounds and PPO-inhibiting compounds into a single integrated application system. The diamide compounds are applied to seeds while PPO-inhibiting compounds are applied to the field, creating a unified pest and weed control strategy that simplifies the overall application process while maintaining high effectiveness against multiple pests and weeds.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively controls weeds and harmful arthropods in soybean, corn, and cotton fields without causing significant phototoxicity to crops, ensuring effective pest management and crop safety.
Implementation Method 1
PPO-inhibiting compounds... to control pests by inhibiting protoporphyrinogen IX oxidase
Implementation Method 2
targeting calcium channels in insects
Data Source
AI summary
Provided is a method which exerts an excellent effect in controlling a pest in a field of soybean, corn or cotton. A method of controlling a pest (weed, harmful arthropod) in a field of soybean, corn or cotton, including treating a field before, at or after seeding with a seed of soybean, corn or cotton treated with one or more diamide compounds, with one or more PPO-inhibiting compounds selected from the group consisting of flumioxazin, sulfentrazone, saflufenacil, oxyfluorfen, fomesafen, fomesafen sodium and a compound represented by the formula (I):