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Pesticide composition containing fructus cnidii and olive leaf extract and preparation method of pesticide composition

A technology of olive leaf extract and pesticide composition, applied in the field of pesticides, can solve the problems of unfavorable product sales and promotion, low carvacrol extraction rate, poor control effect, etc., and achieve the improvement of crop immune system ability, low cost and effective The effect of low concentration

Inactive Publication Date: 2018-08-24
CHENGDU NEWSUN CROPSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the extraction rate of carvacrol is low and the cost is too high, which is not conducive to product sales and promotion
[0007] At present, the plant-derived pesticides used to prevent and control powdery mildew are mainly single doses, and the control effect is poor. However, the patent application number 2013106650047 applied by our company earlier, due to the low extraction rate of carvacrol, the cost is high

Method used

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  • Pesticide composition containing fructus cnidii and olive leaf extract and preparation method of pesticide composition
  • Pesticide composition containing fructus cnidii and olive leaf extract and preparation method of pesticide composition
  • Pesticide composition containing fructus cnidii and olive leaf extract and preparation method of pesticide composition

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] A preparation method of a pesticide composition containing Fructus Cnidii and olive leaf extracts, prepared by the following steps:

[0038] a. Pulverize Fructus Cnidii and olive leaves, mix, add a solvent according to the ratio of material to liquid 1g: 8 ~ 12mL, reflux extraction at 55 ~ 95 ° C, filter to obtain an extract, wherein the solvent is an organic solvent or water;

[0039] b. Preparation: make the extract into microemulsion, soluble agent or aqueous agent.

[0040] Preferably: in step a, Fructus Cnidii and olive leaf particles pass through a 40-100 mesh sieve, and the ratio of solid to liquid is 1:8 g / ml; the organic solvent is methanol, ethanol, ethyl acetate, acetone, chloroform; the reflux temperature is 60-100 g / ml; 95°C; the number of reflux is two times, and the filtrates are combined to obtain an extract.

[0041] More preferably, the Fructus Cnidii and olive leaf particles pass through a 40-mesh sieve, the organic solvent is acetone or ethanol, and...

Embodiment 1

[0044] Embodiment 1 Preparation of the pesticide composition containing Fructus Cnidii and olive leaf extract of the present invention

[0045]a. After pulverizing Fructus Cnidii Fructus and olive leaves respectively, pass through a 40-mesh sieve, mix, add solvent according to the ratio of material to liquid 1g:8-12mL, and extract twice at 55-95°C under reflux, filter, combine the filtrates, and concentrate the filtrates to With the same weight as the raw materials, the extracts sy-01-sy-06 of Fructus Cnidii and olive leaves were obtained, refrigerated, and set aside. The specific preparation parameters are shown in Table 1.

[0046] b. Add the additives in Table 2 to extracts sy-01-sy-06 of Fructus Cnidii and olive leaves to obtain pesticide compositions SY-01-SY-06 containing extracts of Fructus Cnidii and olive leaves.

[0047] Table 1

[0048]

[0049] Table 2

[0050]

[0051]

Embodiment 2

[0052] Embodiment 2 Preparation of the pesticide composition containing Fructus Cnidii and olive leaf extract of the present invention

[0053] a. After crushing Fructus Cnidii, pass through a 40-mesh sieve, mix, add solvent according to the ratio of material to liquid 1g: 8 ~ 12mL, reflux extraction at 55 ~ 95 ° C, filter, combine the filtrate, and concentrate the filtrate to the same weight as the raw material to obtain Fructus Cnidii extract d1-01~d1-03; see Table 3 for specific preparation parameters.

[0054] After crushing the olive leaves, pass through a 40-mesh sieve, mix, add a solvent according to the ratio of material to liquid 1g:8-12mL, reflux extraction at 55-95°C, filter, combine the filtrates, and concentrate the filtrates to the same weight as the raw materials to obtain olive leaves Extraction solution d2-01~d2-03; specific preparation parameters are shown in Table 4.

[0055] b. Weigh the Fructus Cnidii extract, the olive leaf extract and auxiliaries, stir ...

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Abstract

The invention relates to a pesticide composition containing fructus cnidii and olive leaf extract, and belongs to the field of pesticides. The preparation method comprises the following steps: mixingfructus cnidii and olive leaves according to a weight ratio of (5 to 15) to (1 to 5); extracting with an organic solvent or water. The prepared pesticide composition has a synergistic effect and realizes an excellent effect of preventing and controlling powdery mildew.

Description

technical field [0001] The invention relates to a pesticide composition containing Cnidium Fructus Cnidii and olive leaf extracts and a preparation method thereof, belonging to the field of pesticides. Background technique [0002] Powdery mildew occurs in leaves, tender stems, flower stalks, flower buds, petals and other parts. The initial stage is yellow-green irregular small spots with inconspicuous edges. Then the lesions continued to expand, white powder spots appeared on the surface, and finally numerous black spots appeared in this place. The affected part turns gray, and the surface is covered in contiguous pieces, with unclear edges, stained white or off-white. When the damage is severe, the leaves shrink and shrink, the young shoots are twisted and deformed, and the flower buds do not open. At present, the prevention and control of powdery mildew in production mainly relies on chemical agents, but there are problems such as drug resistance, excessive residues, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/10A01N43/16A01P3/00
CPCA01N43/16A01N65/00A01N65/08A01N65/10
Inventor 何其明刘科牟天秀荣波任丹姜勇廖立群杨艳琼
Owner CHENGDU NEWSUN CROPSCI
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