Crofton weed extract and iprodione compound fungicide

A technology of Erythrina japonica and Isoflumuron, which is applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of incomplete control effect, many application times, and large amount of Isoflumuron, so as to achieve the goal of prevention and control. Plant fungal disease, increase the use effect, the effect of fast degradation

Inactive Publication Date: 2016-05-04
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the specific functions of these extracted compounds are not very clear
[0003] Iprodione, the chemical name 3-(3,5-=chlorophenyl)-1-isopropylcarbamoylhydantoin, is a dicarboximide fungicide, suitable for the prevention and treatment of various fruit trees and vegetables Botrytis cinerea, early blight, black spot, sclerotinia and other plant diseases such as botrytis, melons and fruits, etc. However, iprodione is used in a large amount, it is not easy to degrade, and the number of applications is frequent, and the bacteria are easy to develop resistance to it. The effect is not thorough, which limits its wide application in agriculture

Method used

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  • Crofton weed extract and iprodione compound fungicide
  • Crofton weed extract and iprodione compound fungicide
  • Crofton weed extract and iprodione compound fungicide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1 Extraction of Eupatorium adenophorum Extract

[0016] The collected leaves of Eupatorium adenophorum were dried in the shade and pulverized into a coarse powder, adding methanol 6 times the weight of the coarse powder, ultrasonically extracting at room temperature three times, 12 hours each time, combining the filtrates, concentrating under reduced pressure at 45°C to obtain an extract. Add a small amount of methanol to the extract to dissolve, add distilled water to dilute the methanol content to 20%, extract with ethyl acetate, recover the solvent under reduced pressure at 45°C from the extract to dryness, and obtain the ethyl acetate extract. The ethyl acetate extract was dissolved in a mixed solution of methanol:water:chloroform (85:15:5), and eluted on an XAD-2 macroporous resin column to remove impurities such as pigments, and the eluent was collected and concentrated to obtain a paste. The paste after decolorization was subjected to repeated silica ge...

Embodiment 2

[0017] Embodiment 2 antibacterial experiment

[0018] For the test bacteria: Pythium ingross.

[0019] Test agent: iprodione (FMC Corporation, USA), and zelenone was prepared by the method in Example 1.

[0020] The extract of Eupatorium adenophorum and the combined fungicide containing the extract of Eupatorium adenophorum were tested for in vitro biological activity of the tested pathogenic bacteria by the method of mycelial growth rate. Calculate the bacteriostatic rate by following formula: Bacterial colony growth diameter (mm)=two times measure diameter average value-4.0 (bacteria cake diameter); Inhibition growth rate=(the diameter of control bacterium colony-the diameter of processing bacterium colony) / the diameter *100 of control bacterium colony %.

[0021] According to the formula of Colby's method (1966) to calculate the control effect and compare with the measured control effect, it is simple and effective to evaluate the combined effect of the mixture. The ca...

Embodiment 3

[0028] Embodiment 3 is to the control field experiment of Pythium ingross

[0029] Pharmaceutical composition 1 was prepared. Composition 1 contained 50 mg / L iprodione, 50 mg / L zelenone, 50 mg / L xylene and 50 mg / L dimethyl sulfoxide, and the rest was water.

[0030] Prepare pharmaceutical composition 2, which contains 50 mg / L iprodione, 50 mg / L zelenone, 50 mg / L xylene and 50 mg / L polyoxyethylene sorbitan fatty acid ester, and the rest is water.

[0031] 200m from the peanut field 2 , Infected with Pythium massifera and fell ill, moderately infected, divided into two pieces on average, applied the pesticides of medicament composition 1 and medicament composition 2, and watered 1L each time (dilute 1L pesticide into 1000L water for watering), every other day After watering once and watering 3 times, after 15 days, the recovery rate of the peanuts with the application of the pharmaceutical composition 1 was 85%, and the recovery rate of the peanuts with the application of the...

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PUM

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Abstract

The invention discloses a crofton weed extract and iprodione compound fungicide. The fungicide comprises the active ingredients of iprodione and herba lycopi ketone. The fungicide is a compound of herba lycopi ketone (a natural plant extract) and iprodione, so that the consumption of iprodione (a traditional pesticide) is reduced; and meanwhile, the using effect is improved. Accordingly, the fungicide is efficient, low in toxicity, high in degradation velocity and convenient to use, and can effectively prevent and treat plant fungal diseases such as pythium myriotylum.

Description

technical field [0001] The invention relates to a compound fungicide, in particular to a compound fungicide of Eupatorium adenophorum extract and iprodione. Background technique [0002] Eupatorium adenophorum is a perennial herb or semi-shrub. The rhizome is thick and well developed, erect, the plant height is 30-200 cm, the branches are opposite and oblique, the stem is purple, covered with white or rust-colored pubescence. It is a common weed growing in southern my country. The extracts extracted by different methods of Eupatorium adenophorum have different functions. Patent 200810058143.2 reports that the extract of Eupatorium adenophorum can be used as a rooting agent. Patent 201310007596.3 reports that the extract of Eupatorium adenophorum can kill roundworm eggs. Patent 02113396.4 reports Eupatorium adenophorum powder has anti-rheumatic effect. Patent 200810008066.X reports the application of Eupatorium adenophorum extract as an antifouling agent for antifouling pai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01N37/02A01N35/06A01P3/00
CPCA01N47/38A01N35/06A01N37/02
Inventor 刘晓漫曹坳程欧阳灿彬李园颜冬冬王秋霞郭美霞
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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