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Pesticide for preventing and controlling ginger blast, and preparation method thereof

A technology for ginger blast and pesticides, applied in the field of pesticides, can solve problems such as residues, endanger human and animal safety, soil damage, etc., and achieve the effects of simple preparation method, strong specificity, and easy metabolism

Inactive Publication Date: 2017-04-19
CHENGDU NEWSUN CROPSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the raw materials are basically from industrial-grade products, which will remain in the environment after use, causing certain damage to the soil, and long-term use will also endanger the safety of humans and animals.

Method used

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  • Pesticide for preventing and controlling ginger blast, and preparation method thereof
  • Pesticide for preventing and controlling ginger blast, and preparation method thereof
  • Pesticide for preventing and controlling ginger blast, and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0032] Further, as a more preferred technical solution, in order to facilitate storage and transportation, the gallnut extract can be concentrated to obtain a concentrated solution. The concentration factor can be adjusted according to actual production needs. When used in the preparation of the pesticide containing gallnut according to the present invention, It needs to be diluted by a certain multiple. In the above-mentioned method for preparing a pesticide for preventing and treating ginger blast, the active ingredient gallnut extract is prepared by the following steps:

[0033] a. After the fresh gallnut is processed, crushed and passed through a 60-100 mesh sieve, preferably through an 80 mesh sieve, to obtain gall powder;

[0034] b. Add the powder of gallic in ethanol, mix, extract, filter, and concentrate to obtain the extract of gallic.

[0035] The above-mentioned method for preparing pesticides for preventing and curing ginger blast disease is based on the ratio of gallnut...

Embodiment 1

[0041] Preparation of Galla Chinensis Extract:

[0042] Weigh 10 kilograms of processed Chinese gallnut pieces from Emei, Sichuan, pulverize with a pulverizer and pass through an 80-mesh sieve. Place the gall powder in an extraction tank, add 100 kilograms of 80% industrial ethanol, and extract at 82°C for 2 hours. The gallnut extract filtered through a plate and frame filter is transferred to a vacuum decompression concentration tank. The distillation temperature was controlled to 40°C and the vacuum degree was 0.08 MPa, the solvent was recovered and the gallnut extract was concentrated until there was no water to steam out, and 1.06 kg of brownish yellow gallnut extract was obtained. Among them, the tannic acid content in the extract was 59.02% detected by HPLC.

[0043] The pesticides containing gallnut extract were prepared according to the following weight percentages of raw materials:

[0044] Gallnut extract 7wt%, emulsifier 506 8%, emulsifier 508 2%, N-methylpyrrolidone 0.5...

Embodiment 2

[0060] Weigh 50 kilograms of processed Chinese gallnut pieces produced in Emei, Sichuan, and obtain 5.26 kilograms of gallnut extract according to the preparation method in Example 1. Among them, the content of gallic acid was detected by high performance liquid method at 56.63%.

[0061] Take 9.5 kg of Galla Chinensis extract, add 40 kg of ethanol to dissolve, then add 4 kg of surfactant styrene-based phenol polyoxyethylene ether, and stir until all components are dissolved, then add 46.5 kg of ethanol and mix well. A fungicide for preventing ginger plague is prepared.

[0062] Take 100g of this solution, add 50kg of tap water to dissolve and dilute it, and use it for soaking seeds of ginger in one mu of land; take another 300g of soluble solution and add 90kg of tap water to irrigate and spray the ginger plant in the later stage. Combined with the commonly used comprehensive prevention and control methods of ginger blast, the final control rate was 9.14%. Compared with the contr...

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Abstract

The present invention relates to a galla chinensis extract-containing pesticide for preventing and controlling ginger blast, and a preparation method thereof, and belongs to the field of pesticides, wherein the galla chinensis extract-containing pesticide comprises the following raw materials by weight: 2-40 parts of an active component, 52-93 parts of a solvent, and 3-8 parts of an auxiliary agent, wherein the active component is a galla chinensis extract. According to the present invention, the galla chinensis extract-containing pesticide can effectively kill Ralstonia solanacearum, effectively prevent and control ginger blast, and has characteristics of rapidness, high efficiency and strong specificity, wherein the field prevention and control effect achieves more than 65%, the raw materials are derived from Chinese herb plants, and the advantages of no residue after use, environmental protection and no toxicity and no harm to human and animals are provided.

Description

Technical field [0001] The invention relates to a pesticide for preventing and treating ginger blast disease containing gallnut extract and a preparation method thereof, and belongs to the field of pesticides. Background technique [0002] Galla chinensis, also known as Baichongcang, Baiyaojian, and Gallus gallus, is formed by stabbing the young leaves or petioles of Anacardiaceae and other plants in the same genus by parasitizing the female hornbeam or double egg aphid of the Homoptera Aphididae. A kind of cystic polybiological insect galls, obtained after baking and drying. The gall production areas are mostly mountainous, with large microclimate changes, and are distributed in the tropical to warm temperate mountains and hills of South Asia. The six provinces of Guizhou, Sichuan, Hubei, Hunan, Yunnan, and Guangxi account for about 80% of the country's total output. The main active ingredients in Galla Chinensis are tannins and gallic acid, etc., which have more tri-position ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/02A01P3/00
Inventor 何其明唐齐严寒杨锡良李杉
Owner CHENGDU NEWSUN CROPSCI
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