Chemical fungicides containing biocontrol yeasts for the control of postharvest diseases in citrus

A technology for biocontrol of yeast and postharvest diseases, applied in the direction of chemicals, fungicides, biocides for biological control, etc. Post-disease, easy operation and low cost effect

Inactive Publication Date: 2015-08-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the traditional long-term widespread use of a fungicide will cause serious problems of pathogenic microorganism resistance, it will not only lead to a decrease in the efficacy of the fungicide, but also increase the need to increase the use of fungicides and the need to develop new fungicides
However, the cost of developing a new type of fungicide is very high, and it needs about 184-200 million US dollars in development funds in Europe and the United States

Method used

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  • Chemical fungicides containing biocontrol yeasts for the control of postharvest diseases in citrus
  • Chemical fungicides containing biocontrol yeasts for the control of postharvest diseases in citrus
  • Chemical fungicides containing biocontrol yeasts for the control of postharvest diseases in citrus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Experiment 1 Effect of combination of low-dose fungicide and Rhodosporidium on the control of penicillium in ponkan fruit

[0025] 1. Experimental materials:

[0026] The fruit is citrus, and the variety is ponkan. Pathogen: Penicillium digitatum.

[0027]The fungicides used were:

[0028] Prochloraz, a prochloraz fungicide, is in the form of a suspension, purchased from Maxim Chemical Company of Israel, and the recommended concentration for normal use is 250-500 mg / kg.

[0029] Bacoud, biguanide trioctylbenzene sulfonate (Iminoctadine tris) fungicide, the dosage form is 40% wettable powder, purchased from Dainippon Ink Chemical Industry Co., Ltd., the recommended concentration for normal use is 200-400mg / kg.

[0030] Scale, Pyrimethanil fungicide, the dosage form is suspension concentrate, purchased from Bayer Crop Science Company, the recommended concentration for normal use is 1000-1500 times liquid.

[0031] Shilashi, Fludioxonil fungicide, the dosage form is su...

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Abstract

The invention discloses a chemical bactericide containing bio-control yeast and used for controlling citrus postharvest diseases. An effective component is added in each liter of bio-control yeast cell suspension with concentration of 1010-1011cell / L, wherein the effective component is composed of the following ingredients in part by weight: 1-10mg of prochloraz, 1-10mg of iminoctadine tris, 1-10mg of pyrimethanil and 1-10mg of fludioxonil; the bio-control yeast is rhodosporidium paludigenum Fell and Tallman preserved in the British International Mycological Institute Centre for International Agricultural and Biological Genetic Resources Collection with a preservation number of IMI 394084. The chemical bactericide disclosed by the invention can be used for effectively controlling the citrus postharvest diseases on the condition of greatly reducing the application amount of the chemical bactericide, so that the chemical bactericide has important application and promotion values.

Description

technical field [0001] The invention relates to the technical field of prevention and control of post-harvest diseases of fruits, in particular to a fresh-keeping technology for controlling post-harvest diseases of citrus fruits. Background technique [0002] Postharvest diseases of citrus fruits caused by various pathogenic fungi account for about 50% of the total loss of citrus fruits. At present, the main measures to control postharvest diseases of citrus at home and abroad still rely on chemical fungicides. Chemical fungicides have the advantages of clear mechanism of action and stable effect, so until now they are still one of the main methods to control postharvest diseases. Chinese invention patent (application number 200910028802.2, a citrus fresh-keeping agent) provides a variety of chemical fungicides that can control citrus diseases, including thiophanate-methyl and carbendazim. Chinese invention patent (application number 200910028804.1) provides chemical fungi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/04A01P3/00A01N47/38A01N47/44A01N43/36A01N43/54
Inventor 余挺张杨扬郑晓冬方维文卢黄娉余辰路来风曾丽珍
Owner ZHEJIANG UNIV
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