Solid Fungal Sclerotia Composition for Weed and Disease Control
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Solution Overview
Problem
Existing methods for controlling ecologically harmful plants like burcucumber and soil-borne diseases such as Sclerotinia dollar spot are inefficient due to labor-intensive physical methods, limited effectiveness of chemical pesticides, and instability of biological formulations, which are sensitive to environmental factors and have short shelf lives.
Innovation Solution
A solid composition containing dormant fungal sclerotia, carbon and nitrogen source nutrients, and absorbent materials is used to stabilize the sclerotia for effective weed and disease management, allowing convenient production, storage, and application without rapid deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If living plant pathogenic microorganisms are used for biological control, then the control effectiveness against target plants is improved, but the stability and shelf life are severely reduced due to sensitivity to environmental factors
Solution Approach 1:
The patent transforms the biological control agent from a living microorganism state to a dormant sclerotium state. This parameter change in biological activity allows the agent to remain stable during storage and transport, then activate when environmental conditions become favorable for pathogen development, thus resolving the contradiction between effectiveness and shelf life
Solution Approach 2:
The sclerotia are prepared in advance in a dormant state that is stable for long-term storage. When applied to the target plant environment, they automatically activate and germinate under suitable conditions, performing the pathogenic action only when and where needed, without requiring continuous refrigeration or special handling
2Ease of manufacture
If high temperature or pressure is applied during production and storage of microbial formulations, then the manufacturing and storage processes are simplified, but the biological activity of the microorganism is reduced or inactivated
Solution Approach 1:
The patent exploits the parameter change in the biological state of the fungus - using the dormant sclerotium form that is resistant to heat and pressure, rather than the sensitive mycelial or spore forms. This allows conventional manufacturing and storage processes to be used without compromising biological activity
3Ease of operation
If physical methods such as hand weeding and machine cutting are used for weed control, then the implementation is straightforward and immediate, but labor costs and worker risk exposure increase
Solution Approach 1:
The sclerotium-based biological control agent performs the control function autonomously once applied. The sclerotia germinate and infect target plants according to their biological cycle, eliminating the need for continuous human intervention, repeated applications, or ongoing labor costs associated with physical control methods
Data Source
AI summary
In a method of controlling a weed in a soil, an effective amount of a solid composition is applied on the soil. The solid composition includes fungal dormant sclerotium, a carbon source nutrient, and a nitrogen source nutrient. The solid composition is a dried solid composition. The solid composition may weed out target plants, including the burcucumber which is designated as an ecologically damaging plant and suppress soil-borne diseases like Sclerotinia dollar spot disease. By using the solid composition, burcucumber and Sclerotinia dollar spot disease can effectively be controlled, and it is possible to make significant gains in solving problems with biological products containing microorganisms in stages of production, storage, distribution, and usage process.