Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bactericide compounded by eupatorium adenophorum extract and mefenoxam

A technology for the compounding of fenaxyl and Eupatorium adenophorum, which is applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of not being very clear, functional research, and not easy to degrade, etc., to increase the use effect, The effect of fast degradation and reduced usage

Inactive Publication Date: 2015-12-23
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
View PDF6 Cites 2 Cited by
  • 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] Metalaxyl, chemical name N-(2-methoxyacetyl)-N-(2,6-dimethylphenyl)-D-alanine methyl ester, is a kind of control flower downy mildew, cabbage frost It is an effective preparation for plant fungal diseases such as mildew, cucumber downy mildew, tomato morning and evening blight, etc. However, the use of mefenaxyl is relatively large, it is not easy to degrade, and the control effect is not complete, which limits its application in agriculture. widely used

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bactericide compounded by eupatorium adenophorum extract and mefenoxam
  • Bactericide compounded by eupatorium adenophorum extract and mefenoxam
  • Bactericide compounded by eupatorium adenophorum extract and mefenoxam

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 decolorized paste was subjected to repeated silica gel column ...

Embodiment 2

[0017] Embodiment 2 antibacterial experiment

[0018] For the test bacteria: Phytophthora capsici, Pythium ingross.

[0019] Drugs to be tested: mefenaxyl (Syngenta Company), and zelenone were 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=(diameter of control bacterium colony-diameter of processing bacterium colony) / 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 ...

Embodiment 3

[0030] Embodiment 3 is to the control field experiment of capsicum phytophthora

[0031] Pharmaceutical composition 1 was prepared. Composition 1 contained 62.5 mg / L metalaxyl, 250 mg / L zelenone, 50 mg / L xylene and 50 mg / L dimethyl sulfoxide, and the rest was water.

[0032] Prepare pharmaceutical composition 2, which contains 62.5 mg / L metalaxyl, 250 mg / L zelenone, 50 mg / L xylene and 50 mg / L polyoxyethylene sorbitan fatty acid ester, and the rest is water.

[0033] Take 200m of pepper field for planting 2 , Infected with Phytophthora capsici and developed disease, moderately infected, divided into two parts on average, applied the pesticides of pharmaceutical composition 1 and pharmaceutical composition 2, sprayed 1L each time, sprayed once every other day, sprayed 3 times, and applied the pesticide after 15 days The pepper recovery rate of composition 1 was 95%, and the pepper recovery rate of agent composition 2 was 99%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a bactericide compounded by eupatorium adenophorum extract and mefenoxam. Active ingredients of the bactericide are mefenoxam and lycopus lucidus ketone. The bactericide disclosed by the present invention is compounded by natural plant extract eupatorium adenophorum and mefenoxama, so that the usage amount of a conventional pesticide mefenoxama is reduced, and meanwhile the using effect is increased. The compound bactericide is a bactericide with high efficiency, low toxicity and quick degradation speed, so that plant fungal diseases including pepper phytophthora, pythiummyriotylum and the like can be effectively prevented and cured.

Description

technical field [0001] The invention relates to a compounded bactericide, in particular to a compounded bactericide of Eupatorium adenophorum extract and mefenaxyl. 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 antifou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/46A01P3/00A01N37/02A01N35/06
Inventor 刘晓漫曹坳程颜冬冬欧阳灿彬王秋霞李园郭美霞
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com