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Low-dosage chemical bactericide used for controlling postharvest diseases of fruits

A post-harvest disease and fungicide technology is applied in the field of fresh-keeping for preventing and controlling post-harvest diseases of citrus fruits, and can solve the problems of resistance of pathogenic microorganisms, high cost, reduced fungicide effectiveness, etc., and achieves low cost, simple operation, and post-harvest control. effect of disease

Inactive Publication Date: 2013-09-04
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
[0004] Imazalil (Imazalil) fungicides, prochloraz (Prochloraz) fungicides, and biguanide trioctylbenzene sulfonate (Iminoctadine tris) fungicides are chemical fungicides that can be used for fruit preservation and preservation; but in When used alone, the effective concentration of 200-500mg / kg is required to achieve effective inhibition of citrus fruit Penicillium disease

Method used

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  • Low-dosage chemical bactericide used for controlling postharvest diseases of fruits
  • Low-dosage chemical bactericide used for controlling postharvest diseases of fruits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Experiment 1: Effects of a combination of chemical fungicides on the control of penicillium in ponkan fruit

[0020] 1. Experimental materials:

[0021] The fruit is citrus, and the variety is ponkan. Pathogen: Penicillium digitatum.

[0022] The fungicides used were:

[0023] Weixian, Imazalil (Imazalil) fungicide, the dosage form is 50% emulsifiable concentrate, purchased from Janssen Pharmaceutical Company, Belgium, the recommended concentration for normal use is 7.5-10 kg per 5 ml of water.

[0024] 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.

[0025] 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.

[0026] 2. Processing:

[0027] (1) Fruit...

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Abstract

The invention discloses a low-dosage chemical bactericide used for controlling the postharvest diseases of fruits. The effective components of each liter of the low-dosage chemical bactericide comprise 1-10mg of imazalil, 1-10mg of prochloraz and 1-10mg of iminoctadine tris(albesilate). When the low-dosage chemical bactericide is practically used, the surface sprinkling (just fruit surface wetting) or postharvest immersion for 1-5min of the preharvest orange fruits by or in the low-dosage chemical bactericide can control the penicilliosis of the orange fruits.

Description

technical field [0001] The invention relates to the technical field of prevention and treatment of post-harvest diseases of fruits, in particular to a fresh-keeping technology for preventing and curing 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, high potency and stable effect, and can control pathogenic bacteria latently infected before harvest, so until now they are still one of the main methods for controlling 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 a...

Claims

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Application Information

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IPC IPC(8): A23B7/154
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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