Application of lentinan in prevention and treatment of fungal diseases of tea trees

Abstract

The invention discloses an application of lentinan in prevention and treatment of fungal diseases of tea trees and belongs to the technical field of agriculture. According to the application of lentinan in prevention and treatment of fungal diseases of tea trees, the tea tree fungi refer to gloeosporium theae-sinensis and pestalotiopsis theae. The result of research on the activity of lentinan ininhibiting fungal pathogens of tea trees shows that lentinan has good bacteriostatic activity on two main fungal diseases, namely gloeosporium theae-sinensis and pestalotiopsis theae, of tea trees, and can be applied to prevention and treatment of fungal diseases of tea leaves. At present, tea tree fungal disease control is mainly based on chemical drugs, pathogenic bacteria drug resistance is easily caused due to long-term single use of similar drugs, meanwhile, chemical pesticide residues threaten food safety of human beings, and export of tea leaves is also restricted. The lentinan is a novel natural functional polysaccharide separated and extracted from lentinan sporocarp, is green and environment-friendly, does not cause pesticide residues while ensuring the quality of tea leaves, andhas great potential for preventing and treating fungal diseases of tea trees.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to the new application of lentinan in preventing and treating fungal diseases of tea trees. Background technique [0002] Tea tree is an important economic crop in my country, but because it mainly grows in a warm and humid environment, it causes the breeding of tea tree diseases. In recent years, with the increase in demand for tea, the area of ​​tea gardens has continued to expand, coupled with the single variety of tea trees in some tea areas and extensive management, making tea tree diseases more and more serious. The fungi of tea trees are mainly controlled by chemical methods at present, while the methods of biological control are still very limited. Since long-term single use of the same kind of pesticides is likely to lead to pathogenic bacteria resistance, food and ecological safety problems caused by pesticide residues are increasing, so environmentally fr...

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Problems solved by technology

[0005] It can be seen that in animals, lentinan is a biological regulator that inhibits tumor growth and improves immune function. In plants, it also has the functions of stimulating plant immune system response, improving plant disease resistance and regulating plant growth. Both fungal diseases and bacterial diseases have good control effects, but the application of lentinan in the control of fungal diseases of tea trees has not been reported yet.

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