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The research on biological control of horticultural plant diseases is an important part of the horticultural products pollution-free cultivation, and has a wide range of application prospects. However, due to various reasons, the progress in the research, promotion, and application of biological control of diseases has been slow. The industrialization of disease-preventing biological pesticides has been slow and the market share has been relatively small. For example, there have been many new bacterial pesticide products in the past decade. However, compared with chemical fungicides, there is currently no market competitiveness. The plant disease rapid diagnosis apparatus is an instrument for predicting and predicting plant diseases.
In the prevention and control of postharvest diseases of horticultural products, people are often skeptical about the safety of the use of microbial bactericides, but biocontrol bacteria isolated directly from the fruit surface are easily accepted, and the antagonistic bacteria of nutrient competition will be easier than the microorganisms that secrete antibiotics. is recognized. It is expected that antagonistic bacteria will become "biological fungicides" in the prevention of post-harvest diseases, but there is still a long way to go from laboratory research to commercial production. For commercial production, the requirements of antagonistic bacteria are many. Such as genetic stability, resistance, broad-spectrum, and no pathogenicity to the host. According to the above conditions, yeasts are important antagonists. Currently, except for Bacillus subtilis (B-3) and Dexa hansenii (US-7), almost no mass production has been achieved.
Through the application of the plant disease rapid diagnostic apparatus, in the future, in the biological control of horticultural plants and their diseases, the following issues need to be further explored and studied: genetic engineering and other means for genetic recombination, transformation of biocontrol bacteria, To improve control efficiency; to artificially cultivate bacteriostatic techniques such as Pasteurella spp., to solve the problem of commercial cultivation on artificial culture medium; to study the relationship between microbial community composition, population dynamics, and pathogenic bacteria on the fruit surface, and to ascertain the Ecological significance, providing basis for biological control; searching for chemical, physical, and biological inducers that can induce disease resistance of horticultural plants such as cauliflower, and exploring the resistance and mechanism of the products that produce consequences; and the preservation of chemical fungicides and adhesives. Uniform affinity studies, as well as research on human, livestock and environmental safety of bio-control bacteria.
In the prevention and control of postharvest diseases of horticultural products, people are often skeptical about the safety of the use of microbial bactericides, but biocontrol bacteria isolated directly from the fruit surface are easily accepted, and the antagonistic bacteria of nutrient competition will be easier than the microorganisms that secrete antibiotics. is recognized. It is expected that antagonistic bacteria will become "biological fungicides" in the prevention of post-harvest diseases, but there is still a long way to go from laboratory research to commercial production. For commercial production, the requirements of antagonistic bacteria are many. Such as genetic stability, resistance, broad-spectrum, and no pathogenicity to the host. According to the above conditions, yeasts are important antagonists. Currently, except for Bacillus subtilis (B-3) and Dexa hansenii (US-7), almost no mass production has been achieved.
Through the application of the plant disease rapid diagnostic apparatus, in the future, in the biological control of horticultural plants and their diseases, the following issues need to be further explored and studied: genetic engineering and other means for genetic recombination, transformation of biocontrol bacteria, To improve control efficiency; to artificially cultivate bacteriostatic techniques such as Pasteurella spp., to solve the problem of commercial cultivation on artificial culture medium; to study the relationship between microbial community composition, population dynamics, and pathogenic bacteria on the fruit surface, and to ascertain the Ecological significance, providing basis for biological control; searching for chemical, physical, and biological inducers that can induce disease resistance of horticultural plants such as cauliflower, and exploring the resistance and mechanism of the products that produce consequences; and the preservation of chemical fungicides and adhesives. Uniform affinity studies, as well as research on human, livestock and environmental safety of bio-control bacteria.
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