Fluopyram Systemic Fungicide for Grape Wood Disease Control
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Solution Overview
Problem
Current treatments for wood diseases in grapevines, caused by pathogens like Acremonium spp., Botryosphaeria spp., and Phomopsis viticola, are inefficient due to the difficulty in accessing the fungus in woody tissues and limited systemic distribution of fungicides.
Innovation Solution
The use of fluopyram, a succinate dehydrogenase inhibitor (SDHI), as a systemic fungicide that effectively controls wood diseases in grapevines by targeting the mentioned pathogens, providing both curative and protective treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fungicides are applied to treat wood diseases in grapevines, then the treatment can be administered, but the fungicide cannot effectively reach the fungus in woody tissues due to limited systemic distribution
Solution Approach 1:
The patent applies parameter changes by switching from conventional fungicide chemistry to SDHI (succinate dehydrogenase inhibitor) chemistry, specifically using fluopyram. This chemical parameter change enables the fungicide to achieve systemic distribution throughout the plant, including into woody tissues where the pathogens reside, thereby resolving the accessibility problem while maintaining treatment effectiveness.
2Ease of manufacture
If protective treatments are applied to wounds serving as entry points, then the application process is simple, but the treatment is insufficient because the fungus is already present in woody tissues
Solution Approach 1:
The patent implements preliminary action by applying the SDHI fungicide fluopyram systemically to the plant before the pathogens can establish themselves in the woody tissues. This preventive systemic treatment ensures that the fungicide is already distributed throughout the plant, including the woody tissues, creating a protective barrier against pathogens attempting to infect through wounds or other entry points.
Solution Approach 2:
The patent changes the chemical parameter of the fungicide from conventional types to SDHI type (fluopyram), which has superior systemic properties. This parameter change allows the fungicide to be effectively distributed throughout the plant's vascular system and into woody tissues, providing both protective and curative action that simple wound treatments cannot achieve.
3Ease of operation
If systemic fungicides are used to treat wood diseases, then the fungicide can reach deeper tissues, but the distribution is not even throughout the plant
Solution Approach 1:
The patent applies parameter changes by using fluopyram, an SDHI fungicide with optimized physicochemical properties. These parameter changes include its specific solubility, mobility, and binding characteristics that enable it to achieve both deep penetration into woody tissues and even distribution throughout the plant's vascular system, resolving the contradiction between systemic reach and distribution uniformity.
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
Fluopyram significantly reduces infestation by target pathogens, achieving a 25-70% reduction in infection, with the potential for complete suppression, and is suitable for use in various plant parts including roots, trunks, and leaves.
Implementation Method 1
fluopyram being a root, trunk and leaf systemic fungicide is outstandingly suitable for control of wood diseases in grape
Data Source
AI summary
The invention relates to the use of succinate dehydrogenase SDH inhibitors (SDHIs), in particular bixafen, penflufen or fluopyram for controlling wood diseases in grape, to a method for treating plants or plant parts for controlling wood diseases in grape and to a method for controlling wood diseases in grape plants and plant parts, and in plants which grow from the seedlings, grafts and cuttings, by treating them with SDHIs.