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Nepeta nepeta volatile oil fumigation granule and preparation method

A technology for volatile oil and granules of Nepeta mustard, applied in the directions of botanical equipment and methods, biocides, fungicides, etc., can solve the problems of excessive vegetable residues, pesticide resistance, and large drug dosage, and achieves reduction of disease severity and prolongation. Effective period, easy to use and pollution-free effect

Inactive Publication Date: 2016-08-17
XINYANG AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of frequent occurrence of vegetable diseases in protected areas, serious occurrence of soil-borne diseases, large amount of medication, waste of labor, easy to cause pesticide resistance, and excessive vegetable residues, the invention provides a preparation of nepeta volatile oil fumigation granules method

Method used

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  • Nepeta nepeta volatile oil fumigation granule and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 5 g of ethyl cellulose and put it into 30 g of hot water at 50°C, stir for 1 hour under heat preservation conditions to obtain an aqueous solution of ethyl cellulose; take 50 g of Nepeta nepeta volatile oil and dissolve it in 80 g of absolute ethanol to obtain Nepeta nepeta nepetae Ethanol solution of volatile oil; put the ethanol solution of Nepeta volatile oil and 845g of light calcium carbonate into a stirring device for mixing, then put in an aqueous solution of ethyl cellulose and 100g of white carbon black and mix and stir for 2 hours, coat and granulate, and dry Machine drying at 50°C, after cooling, pass through a 20-mesh sieve to obtain;

[0025] The preparation method of the nepeta volatile oil is as follows: take the whole herb of Nepeta nepeta, dry it in the shade, cut it into 0.2 cm segments, extract it by steam distillation for 2 hours, collect the volatile oil to obtain the volatile oil of Nepeta nepeta.

Embodiment 2

[0027] Weigh 10g of polyethylene glycol and put it into 50g of hot water at 80°C, stir for 1.5h under heat preservation conditions to obtain an aqueous solution of polyethylene glycol; take 100g of Nepeta nepeta volatile oil and dissolve it in 300g of absolute ethanol to obtain Nepeta nepetae The ethanol solution of the volatile oil of Nepeta nepeta; put the ethanol solution of the volatile oil of Nepeta nepeta and 850g of silica sand into the stirring device for mixing, then put in the aqueous solution of polyethylene glycol and 40g of pottery clay and mix and stir for 1.5h, coat and granulate, and pass through the dryer at 50°C After drying and cooling, pass through a 20-mesh sieve to obtain;

[0028] The preparation method of the nepeta volatile oil is as follows: take the whole herb of nepeta nepeta, dry it in the shade, cut it into 0.5 cm sections, extract it by steam distillation for 2 hours, collect the volatile oil to obtain the volatile oil of nepeta nepeta.

Embodiment 3

[0030] Weigh 8g of gum arabic and put it into 80g of hot water at 90°C, stir for 1.5h under heat preservation conditions to obtain an aqueous solution of gum arabic; take 70g of nepeta volatile oil and dissolve it into 200g of absolute ethanol to obtain the ethanol content of the volatile oil of nepeta nepeta Solution: Put the ethanol solution of the volatile oil of Nepeta nepeta and 852g of talc powder into the mixing device for pre-mixing, then put in the aqueous solution of gum arabic and 70g of diatomaceous earth, mix and stir for 1h, coat and granulate, dry at 40°C in a dryer, and cool Finally, pass through a 20-mesh sieve to obtain;

[0031] The preparation method of the nepeta volatile oil is as follows: take the whole herb of Nepeta nepeta, dry it in the shade, cut it into 0.8 cm sections, extract it by steam distillation for 2 hours, collect the volatile oil, and obtain the volatile oil of Nepeta nepeta.

[0032] In order to better verify the actual application effect...

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Abstract

The invention discloses dysphania ambrosioides volatile oil fumigation granules and a preparation method and solves the problems of serious soil-borne disease, large dosage and labor waste of a protected area. The dysphania ambrosioides volatile oil fumigation granules comprise the following components: dysphania ambrosioides volatile oil, an adhesive, an adsorbent and a carrier. The preparation method comprises the following steps: adding the adhesive into hot water and stirring to obtain aqueous solution of the adhesive, wherein the weight ratio of the adhesive to the water is 1:(5 to 10); dissolving the dysphania ambrosioides volatile oil into absolute ethyl alcohol to obtain ethanol solution of the dysphania ambrosioides volatile oil, wherein the weight ratio of the dysphania ambrosioides volatile oil to the absolute ethyl alcohol is 1:(1 to 5); mixing the ethanol solution of the dysphania ambrosioides volatile oil and the carrier, then sequentially adding the aqueous solution of the adhesive and the adsorbent, mixing and stirring, carrying out coating and granulation, cooling and sieving the obtained product by a 20-mesh sieve. The dysphania ambrosioides volatile oil fumigation granules are convenient to use, have low pollution and a long medicine effect period, save manpower and material resources, can effectively prevent and treat the soil-borne disease, cannot increase humidity of the air when used in the protected area, and can avoid disease epidemics.

Description

technical field [0001] The invention belongs to the field of botanical fungicide production, and in particular relates to a plant extract nepeta nepeta volatile oil fumigation granule and a preparation method thereof. Background technique [0002] At present, chemically synthesized fungicides are often used in the prevention and control of plant diseases. Chemically synthesized pesticides have the characteristics of good control effect and quick effect. However, the long-term large-scale use of chemically synthesized pesticides will cause problems such as excessive pesticide residues, resistance of diseases and insect pests, and rampant harmful organisms, and it is very unsafe for humans, animals and the environment. Drawing on the research results of traditional Chinese medicine, it is expected to screen out natural active substances against phytopathogenic fungi from medicinal plants. These active substances can be directly used as natural fungicides with good effect. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/08A01N25/18A01N25/12A01P3/00
CPCY02A50/30
Inventor 智亚楠陈利军张凯王国君陈俊华史洪中
Owner XINYANG AGRI & FORESTRY UNIV
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