Rice Bacterial Leaf Streak Control Composition
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Solution Overview
Problem
Current agricultural practices lack effective and low-toxicity pesticides for controlling bacterial leaf streak of rice, a destructive disease that has increased due to the withdrawal of previously used chemicals, with only a limited number of registered agents available in China.
Innovation Solution
A composition comprising dodecyl dimethyl benzyl ammonium bromide, copper sulfate pentahydrate, and 84-disinfectant, formulated and applied as an aqueous solution, which is effective in controlling bacterial leaf streak of rice with minimal toxicity and residue, and can be used for seed soaking or spraying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical pesticides are used to control bacterial leaf streak of rice, then disease control effectiveness is improved, but toxicity and residue increase
Solution Approach 1:
The patent combines three different active ingredients (dodecyl dimethyl benzyl ammonium bromide, copper sulfate pentahydrate, and 84-disinfectant) into a composite formulation. This composite approach leverages the synergistic effects of multiple substances to achieve superior bactericidal activity against Xanthomonas oryzae pv. oryzae while maintaining lower individual toxicity levels compared to single-chemical solutions.
2Object-affected harmful factors
If previously used chemicals like Streptomycin sulfate are withdrawn, then safety and environmental friendliness are improved, but disease control effectiveness deteriorates
Solution Approach 1:
The patent changes the chemical parameters by selecting alternative active ingredients with different properties than the withdrawn Streptomycin sulfate. The new formulation uses dodecyl dimethyl benzyl ammonium bromide, copper sulfate pentahydrate, and 84-disinfectant, which have different modes of action and safety profiles, thereby maintaining effectiveness while improving safety and environmental compatibility.
3Adaptability or versatility
If the number of registered bacterial disease control agents is increased, then disease control options are improved, but regulatory complexity and approval time increase
Solution Approach 1:
The patent creates a multi-functional formulation that can control bacterial leaf streak of rice caused by Xanthomonas oryzae pv. oryzae while potentially addressing other bacterial diseases. The combination of dodecyl dimethyl benzyl ammonium bromide, copper sulfate pentahydrate, and 84-disinfectant provides broad-spectrum bactericidal activity, making the single product versatile for multiple applications and reducing the need for multiple specialized registrations.
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
The composition demonstrates strong bactericidal power against Xanthomonas oryzaes pv. Oryzicola, with compositions B and C showing 100% inhibition at 1500 times dilution, and effectively reduces disease incidence in field tests, while being safe for rice seed germination and growth.
Implementation Method 1
The results for tests show that compositions A, B and C have stronger bactericidal power for the pathogen of bacterial leaf streak of rice
Implementation Method 2
dodecyl dimethyl benzyl ammonium bromide, copper sulfate pentahydrate, and 84-disinfectant, formulated and applied as an aqueous solution, which is effective in controlling bacterial leaf streak of rice
Implementation Method 3
copper sulfate pentahydrate, and 84-disinfectant, formulated and applied as an aqueous solution, which is effective in controlling bacterial leaf streak of rice
Data Source
AI summary
A composition for preventing and treating bacterial leaf streak, and a preparation method therefor and an application thereof. The composition includes the following components in percentage by weight: 10-15 parts of dodecyl dimethyl benzyl ammonium bromide, 15-20 parts of copper sulfate pentahydrate, 20-25 parts of 84 disinfectant, and 40-55 parts of water. The composition is diluted and then may be used for rice seed soaking so as to prevent rice bacterial leaf streak, or is sprayed onto rice leaves so as to prevent and treat rice bacterial leaf streak. The application method of the composition is simple and convenient to operate, and solves the problem of the shortage of a prevention and treatment drug of rice bacterial leaf streak.