Germicide containing rhubarb extract and its composition

A technology of rhubarb extract and fungicide, applied in the field of pesticides, can solve the problems of poor operability and in-depth research, and achieve obvious synergistic effects

Inactive Publication Date: 2003-01-01
杨凌馥稷生物科技有限公司
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  • Germicide containing rhubarb extract and its composition
  • Germicide containing rhubarb extract and its composition

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[0037] Embodiment: the research report of rhubarb extract of the present invention preventing and treating cucumber powdery mildew From Plant Protection Institute of Hebei Province); tomato gray mold (Botrytis cinerea), wheat root rot (Cochliobolus sativus) and other 20 kinds of pathogenic bacteria (provided by the toxin room of Hebei Agricultural University) 1.1.3 Cucumber variety Changchun Mici (Chengde Great Wall Seed Industry Company) 1.1.4 Chemical agent 15% Fenxining WP (Zhangjiagang No. 2 Pesticide Factory); 20% Myclobutanil WP (Zhejiang Yifan Pesticide Factory) 1.1.5 Drugs and instruments

[0038] Absolute ethanol, ether, sodium carbonate, sodium bicarbonate, hydrochloric acid, chloroform, pyridine, isoamyl alcohol (all analytically pure) Fs-100 small pulverizer, rotary evaporator, centrifuge 1.2 Methods 1.2.1 Rhubarb crude extract 1.2.1.1 Preparation of crude extract of rhubarb for primary screening

[0039] Rhubarb crushing → extraction (Chinese herbal medicine: 80%...

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Abstract

The present invention relates to rhubarb extract and its composition, the plant rhubarb Rheum palmatum is extracted to obtain emodin, chrysophanol, aloe-emodin and their mixture of two or three kinds, then mixed and prepared into agricultural pesticide for crops.

Description

technical field [0001] The invention relates to a rhubarb extract and a composition thereof, belonging to the field of pesticides. technical background [0002] With the development of human society, people have higher and higher requirements for environmental protection and food safety. "Green agriculture" and "organic agriculture" have become the direction of agricultural development. With the intensification of human activities, environmental degradation is becoming more and more serious, and pests and diseases are more frequent. It has been the pursuit of researchers in the field of pesticides to effectively control the growth of plant pathogens and minimize pesticide residues, and to provide people with pollution-free agricultural products. Using Chinese herbal medicines as raw materials to manufacture plant fungicides has become an effective way to achieve the above goals one. Chinese patent application 00129782 discloses a method for making plant pesticides from Cop...

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Application Information

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IPC IPC(8): A01N65/30A01P3/00
Inventor 曹克强李正先胡同乐肖富生唐蕊刘健王树桐
Owner 杨凌馥稷生物科技有限公司
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