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Grape downy mildew prevention and control bacteriostat, and preparation method and application thereof

A technology of grape downy mildew and bacteriostatic agent, which is applied in the field of bacteriostatic agent for the prevention and treatment of grape downy mildew and its preparation, and can solve the problems of large pesticide residues, failure of control of grape necrosis bacteria, and obstacles to the improvement of grape quality

Inactive Publication Date: 2015-11-04
ANHUI HEZHONG AGRI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These antimicrobial agents have the following defects in the process of preventing and treating Botrytis bacterium: 1) after multi-frequency and multi-dose application, it is easy to cause grape downy mildew bacteria to produce a higher degree of drug resistance (resistance), thereby causing the failure of the control of Botrytis bacterium
2) The pesticide residues in the grapes are relatively large, which greatly hinders the improvement of the quality of the grapes

Method used

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  • Grape downy mildew prevention and control bacteriostat, and preparation method and application thereof

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preparation example Construction

[0014] The invention provides a kind of preparation method of the antibacterial agent of preventing and treating grape downy mildew, comprising:

[0015] 1) decocting and filtering the Chinese herbal medicine in water to obtain the Chinese herbal medicine extract;

[0016] 2) Chinese herbal medicine extract is mixed with alum, copper sulfate, ferrocene and garlic paste to prepare a bacteriostatic agent for preventing and treating grape downy mildew;

[0017] Among them, the Chinese herbal medicines are mugwort leaves, aloe vera, licorice, camphor leaves, rhubarb, toad venom, cnidium, cloves, nettles, cinnamon sticks and pomegranate peel.

[0018] In step 1) of the present invention, the amount of each raw material can be selected in a wide range, but in order to make the synergy between the materials can be brought into play to the greatest extent, preferably, in step 1), relative to 100 weight 40 parts by weight, the consumption of aloe is 25-45 parts by weight, the consumpt...

Embodiment 1

[0027] 1) decocting mugwort leaves, aloe, licorice, camphor leaves, rhubarb, toad venom, cnidium, cloves, nettles, cassia twigs and pomegranate peels in water at 110°C for 6 hours and filtered to obtain a Chinese herbal medicine extract; among them, The weight ratio of mugwort leaves, aloe vera, licorice, camphor leaves, rhubarb, toad venom, cnidium, cloves, nettles, cinnamon sticks and pomegranate peel is 100:35:35:55:25:22:85:20:60: 25:70, the ratio of the total weight of Chinese herbal medicine to the weight of water is 1:30;

[0028] 2) At 25°C, the Chinese herbal medicine extract was mixed with alum, copper sulfate, ferrocene and garlic puree for 35 minutes to prepare the bacteriostatic agent A1 for preventing and treating grape downy mildew, wherein the Chinese herbal medicine extract was mixed with alum, copper sulfate, di The weight ratio of ferrocene and garlic paste is 100:5:12:6:12.

Embodiment 2

[0030] 1) decoct mugwort leaves, aloe vera, licorice, camphor leaves, rhubarb, toad venom, cnidium, cloves, nettles, cassia twigs and pomegranate peels in water at 100°C for 5 hours, and filter to obtain a Chinese herbal medicine extract; among them, The weight ratio of mugwort leaves, aloe vera, licorice, camphor leaves, rhubarb, toad venom, cnidium, cloves, nettles, cinnamon sticks and pomegranate peel is 100:25:30:45:15:12:80:12:45: 15:60, the ratio of the total weight of Chinese herbal medicine to the weight of water is 1:10;

[0031] 2) At 15°C, the Chinese herbal medicine extract was mixed with alum, copper sulfate, ferrocene and garlic puree for 25 minutes to prepare the bacteriostatic agent A2 for preventing and treating grape downy mildew, wherein the Chinese herbal medicine extract was mixed with alum, copper sulfate, di The weight ratio of ferrocene and garlic paste is 100:4:10:3:8.

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Abstract

The invention discloses a grape downy mildew prevention and control bacteriostat, and a preparation method and an application thereof. The method comprises the following steps: 1, decocting Chinese herbal medicines in water, and filtering to prepare a Chinese herbal medicinal extract liquid; and 2, mixing the Chinese herbal medicinal extract liquid with alum, copper sulfate, ferrocene and mashed garlic to prepare the grape downy mildew prevention and control bacteriostat, wherein the Chinese herbal medicines comprise Artemisia argyi, aloe, licorice root, leaf of camphor tree, rheum officinale, toad venom, common cnidium fruit, Syzygium aromaticum, Urtica cannabina L., cassia twig and pomegranate rind. The bacteriostat prepared through the method has the advantages of excellent curing effect on grape downy mildew, and low residual quantity in grapes, and the medicine resistance (tolerance) degree of the bacteriostat applied grapes with downy mildew is low; and the preparation method of the bacteriostat has the advantages of simple steps and easily available raw materials.

Description

technical field [0001] The invention relates to a bacteriostatic agent, in particular to a bacteriostatic agent for preventing and treating grape downy mildew, a preparation method and application thereof. Background technique [0002] Grape downy mildew is caused by the infection of Flagellate subphylum, Oomycetes, Peronomycetes, and Plasmopara. The fungus is an obligate parasite that only harms grapes. Under open field cultivation conditions, the fungus mainly survives the winter as oospores in fallen leaves. In warm winter regions, the mycelium attached to buds and leaves hanging on trees can also survive the winter. Its oospores can survive in the soil for about 2 years along with the rotting leaves. In the spring of the following year, when the temperature reaches 11°C, oospores germinate in small water droplets, produce germ tubes, and form sporangia. The sporangia germinate to produce zoospores, which spread to the green tissue of the host by wind and rain, and inva...

Claims

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Application Information

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IPC IPC(8): A01N65/42A01P3/00
Inventor 程想娣
Owner ANHUI HEZHONG AGRI SCI & TECH