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A kind of botanical nematicide for preventing and treating angelica pockmark and its use

A nematicide and plant-derived technology, applied in the field of pesticides, achieves the effects of low toxicity to the human body, easy availability of raw materials, and improved appearance

Inactive Publication Date: 2016-04-13
北京华农益达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research results show that the extract of Daphne chamaejasma has contact killing activity against insects such as cabbage worms, cabbage butterfly larvae, aphids (ZL patent No. 1714641A), and can also be used as acaricide, fungicide, etc., but about Daphne chamaejasme extract It is used in the research on the prevention and treatment of Angelica measles, but there is no report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A 2% formulation was prepared as follows:

[0048] Drying, crushing and sieving the root of Chamaejasma chamaejasma, soaking with 10 times the mass of ethanol and extracting repeatedly for 3 times, each time for 24 hours; the extract was filtered, concentrated under reduced pressure, and dried to obtain the chamaejasma chamaejasma extract;

[0049] The Daphne chamaejasme extract is dissolved with water or ethanol aqueous solution, and then diatomaceous earth is added therein, stirred, dried under reduced pressure, pulverized by a pulverizer, and passed through a 45-mesh sieve to obtain a nematocide with uniform particles. The composition of the preparation includes the Rhizoma chamaejasba root extract and the diatomaceous earth, and the content of the Rhizoma chamaejasba root extract is 2% and the diatomite content is 98% in terms of mass percentage.

[0050] The field experiment of Angelica sinensis was carried out by randomly selecting 6 consecutive ridges in Qinxu To...

Embodiment 2

[0072] A 5% formulation was prepared as follows:

[0073] Drying, crushing and sieving the root of Chamaejasma chamaejasma, soaking in 12 times the mass of ethanol and extracting repeatedly 4 times, each time for 26 hours; the extract was filtered, concentrated under reduced pressure, and dried to obtain the chamaejasma chamaejasma extract;

[0074] The Daphne chamaejasme extract is dissolved with water or ethanol aqueous solution, and then diatomaceous earth is added therein, stirred, dried under reduced pressure, pulverized by a pulverizer, and passed through a 45-mesh sieve to obtain a nematocide with uniform particles. Wherein the formulation comprises the Rhizoma chamaejasma root extract and diatomaceous earth in a ratio of 5% of Rhizoma chamaejasmin root extract and 95% of diatomaceous earth in terms of mass percentage.

[0075] The field experiment of Angelica sinensis was carried out by randomly selecting 6 consecutive ridges in Qinxu Township, Minxian County, Dingxi C...

Embodiment 3

[0093] Prepare a 10% formulation as follows:

[0094] Drying, crushing and sieving the chamaejasma root, soaking with 11 times the quality of ethanol and extracting repeatedly 5 times, each time for 20 hours; the extract was filtered, concentrated under reduced pressure, and dried to obtain the chamaejasma extract;

[0095] The Daphne chamaejasme extract is dissolved with water or ethanol aqueous solution, and then diatomaceous earth is added therein, stirred, dried under reduced pressure, pulverized by a pulverizer, and passed through a 45-mesh sieve to obtain a nematocide with uniform particles. The composition of the preparation includes the Rhizoma chamaejasma root extract and the diatomaceous earth in a ratio of 10% of the Rhizoma chamaejasma root extract and 90% of the diatomaceous earth in terms of mass percentage.

[0096]The field experiment of Angelica sinensis was carried out by randomly selecting 6 consecutive ridges in Qinxu Township, Minxian County, Dingxi City, ...

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Abstract

The invention discloses a botanical nematicide for preventing and treating angelica measles and its application. The nematocide is composed of Daphne chamaejasme extract and diatomaceous earth, each component and its content are calculated by mass percentage as Daphne chamaejasme extract content is 2-15%, and diatomaceous earth content is 85-98% . The invention has a significant inhibitory effect on angelica rhizome, can obviously increase the yield of angelica, improve the appearance, quality and medicinal value of angelica, is environmentally friendly and has no residue, and can be popularized and applied in the planting and production of angelica , has good economic and ecological benefits.

Description

technical field [0001] The invention relates to a botanical nematicide capable of effectively preventing and treating angelica measles and its application. Specifically, the invention relates to a botanical nematicide mainly composed of Daphne chamaejasme, which belongs to the field of pesticides. Background technique [0002] Angelica is one of the famous Chinese herbal medicines in my country. During the planting process of Angelica sinensis, the most common and serious damage is Angelica sinensis. The main manifestations are yellowish-brown longitudinal cracks in the epidermis of the roots, and increased and deformed hair roots. In severe cases, the cortex tissue is dry and rotten. Previous studies have confirmed that Angelica measles is caused by nematodes, and the causative nematode is D. destructor ( Ditylenchus destructor ). However, up to now, there is no biogenic pesticide preparation that is highly targeted, effective and environmentally friendly for the prevent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/08A01P5/00
Inventor 秦波刘权燕志强金辉
Owner 北京华农益达科技有限公司
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