Traditional Chinese medicine extract for preventing hypertrophic Sclerotinia sclerotiorum

Abstract

A traditional Chinese medicine extract for preventing hypertrophic Sclerotinia sclerotiorum adopts the methods of heating alcohol, continuous refluxing for extracting, etc. The extract is obtained from the cortex fraxini through a series of process flows. The antimicrobials prepared by the extract can effectively prevent the hypertrophic Sclerotinia sclerotiorum. The efficacy test indicates that the control rate to hypertrophic Sclerotinia sclerotiorum is above 95% and the total control rate can obtain more than 85%. The preparation belongs to the pure traditional Chinese medicine preparation and has the advantages of prevention of application of chemical pesticide, reduced environment pollution, abroad source of raw material for production and low cost for manufacturing.

Description

technical field

[0001] The invention relates to the technical field of biological pesticides, in particular to a traditional Chinese medicine extract that is resistant to Sclerotinia sclerotiorum. Background technique

[0002] Sclerotinia sclerotiorum Ciboria shiraiana P. Henn is a fungus of the genus Sclerotinia sclerotiorum, also known as sclerotiorum sclerotiorum. The sclerotium germinates to produce 1-5 ascus discs, endophytic ascus, slender lateral filaments, and 8 inside Ascospores. Sclerotinia sclerotiorum has a wide range of incidences and can infect mulberry, peach, pear and other fruit trees, as well as rape, celery, cucumber and other vegetables, as well as traditional Chinese medicines such as fritillaria, salvia, ginseng, Atractylodes, Pinellia, Corydalis, and peony. material. But the most important thing is the fruit that infects the mulberry tree - mulberry. After the mulberry is infected, the diseased mulberry swells, and the perianth is thick and swollen, ...

Examples

Embodiment 1

[0020] Take 100kg of Qinpi, add 400L of ethanol with a mass percentage concentration of 90%, carry out ultrasonic heat extraction treatment, and then use a concentrated extractor for reflux extraction at 50 ° C for 10 minutes, collect the extract, repeat the residue extraction twice, and combine the extracts , volatilized until there is no alcohol smell; further extraction was carried out for 4 times, and finally the traditional Chinese medicine extract was obtained.

Embodiment 2

[0022] Take 100kg of Qinpi, add 600L of ethanol with a mass percentage concentration of 75%, carry out ultrasonic heat extraction treatment, and then use a concentrated extractor for reflux extraction at 50 ° C for 30 minutes, collect the extract, repeat the residue extraction 3 times, and combine the extracts , volatilized until there is no alcohol smell; further extraction was carried out 3 times, and finally the traditional Chinese medicine extract was obtained.

Embodiment 3

[0024] Take 100kg of Qinpi, add 800L of ethanol with a mass percentage concentration of 60%, carry out ultrasonic heat extraction treatment, and then use a concentrated extractor for reflux extraction at 50 ° C for 60 minutes, collect the extract, repeat the residue extraction for 3 times, and combine the extracts , volatilized until there is no alcohol smell; further extraction was carried out for 4 times, and finally the traditional Chinese medicine extract was obtained.

technical field

[0001] The invention relates to the technical field of biological pesticides, in particular to a traditional Chinese medicine extract that is resistant to Sclerotinia sclerotiorum. Background technique

[0002] Sclerotinia sclerotiorum Ciboria shiraiana P. Henn is a fungus of the genus Sclerotinia sclerotiorum, also known as sclerotiorum sclerotiorum. The sclerotium germinates to produce 1-5 ascus discs, endophytic ascus, slender lateral filaments, and 8 inside Ascospores. Sclerotinia sclerotiorum has a wide range of incidences and can infect mulberry, peach, pear and other fruit trees, as well as rape, celery, cucumber and other vegetables, as well as traditional Chinese medicines such as fritillaria, salvia, ginseng, Atractylodes, Pinellia, Corydalis, and peony. material. But the most important thing is the fruit that infects the mulberry tree - mulberry. After the mulberry is infected, the diseased mulberry swells, and the perianth is thick and swollen, ...

Examples

Embodiment 1

[0020] Take 100kg of Qinpi, add 400L of ethanol with a mass percentage concentration of 90%, carry out ultrasonic heat extraction treatment, and then use a concentrated extractor for reflux extraction at 50 ° C for 10 minutes, collect the extract, repeat the residue extraction twice, and combine the extracts , volatilized until there is no alcohol smell; further extraction was carried out for 4 times, and finally the traditional Chinese medicine extract was obtained.

Embodiment 2

[0022] Take 100kg of Qinpi, add 600L of ethanol with a mass percentage concentration of 75%, carry out ultrasonic heat extraction treatment, and then use a concentrated extractor for reflux extraction at 50 ° C for 30 minutes, collect the extract, repeat the residue extraction 3 times, and combine the extracts , volatilized until there is no alcohol smell; further extraction was carried out 3 times, and finally the traditional Chinese medicine extract was obtained.

Embodiment 3

[0024] Take 100kg of Qinpi, add 800L of ethanol with a mass percentage concentration of 60%, carry out ultrasonic heat extraction treatment, and then use a concentrated extractor for reflux extraction at 50 ° C for 60 minutes, collect the extract, repeat the residue extraction for 3 times, and combine the extracts , volatilized until there is no alcohol smell; further extraction was carried out for 4 times, and finally the traditional Chinese medicine extract was obtained.