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Composition containing radix arnebiae traditional Chinese medicine extract and fungicide for oomycete disease prevention and control of crops

A technology of disease control and extract, which is applied in the field of synergistic composition for the control of crop oomycete diseases, and achieves remarkable control effect

Inactive Publication Date: 2018-12-21
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no research report on the compound control of crop oomycete diseases with Chinese herbal medicine extracts and fungicides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A crop fungal disease synergistic composition comprising comfrey extract and pesticides, comprising A component and B component, the A component is a comfrey traditional Chinese medicine extract, and the B component consists of dimethomorph Former composition; Wherein said A component is 5 grams, and B component is 1 gram.

[0013] The preparation method of the composition of the crop fungal disease synergistic composition comprising comfrey extract and pesticides comprises the following steps: each component is weighed according to the above weight, and the A component is first dissolved in 1 times the volume 1-2wt% NaOH with 8 times the volume to completely dissolve it, and mix the extract with the B component to make a synergistic composition of traditional Chinese medicine and pesticide.

Embodiment 2

[0015] A crop fungal disease synergistic composition comprising comfrey extract and pesticides, comprising A component and B component, the A component is the traditional Chinese medicine comfrey extract, and the B component is composed of dimethomorph The composition of the original drug; wherein the weight ratio of the A component and the B component is 8:1.

[0016] The crop fungal disease synergistic composition comprising comfrey extract and pesticides comprises the following steps: each component is weighed according to the above weight, and the A component is first dissolved in 1 times the volume of absolute ethanol , and then use 8 times the volume of 1-2wt% NaOH to completely dissolve it, and mix the extract with the B component to make a synergistic composition of traditional Chinese medicine and pesticide.

Embodiment 3

[0018] The composition in Example 1 or 2 was selected to detect its inhibitory effect on the growth rate of pathogens such as Phytophthora capsici and Phytophthora soybean. On the ultra-clean workbench, first inoculate Phytophthora capsici and Phytophthora soybean isolated from Fujian onto V8 solid medium, and cultivate in the dark for 48-72 hours at a temperature of 25°C. On the ultra-clean workbench, inoculate the 5mm small bacteria dishes of Phytophthora capsici and Phytophthora soybean into PDA medium (containing the composition in Example 1 or 2 diluted 1000 times), at a temperature of 25°C Next, after 48-72 hours of dark culture, the growth rate of pathogenic bacteria was counted by the cross method, and the growth rate of the bacteria in the V8 medium without the composition was used as a control. Growth rate statistics find that under the treatment of Example 1, the composition has a certain inhibitory effect on Phytophthora capsici and Phytophthora sojae, and its co-t...

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PUM

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Abstract

The invention belongs to the technical field of plant protection, and particularly relates to a synergetic composition containing a radix arnebiae traditional Chinese medicine extract and a fungicidefor oomycete disease prevention and control of crops. The composition is prepared from a component A and a component B, wherein the component A is the radix arnebiae traditional Chinese medicine extract , and the component B is prepared from the fungicide crude drug, and a total weight ratio of the component A to the component B is (5 to 1) to (8 to 1). The synergetic composition disclosed by theinvention has the synergetic effect through combining multiple components, belongs to the fungal pesticides, and can be used for preventing and controlling the fungal diseases.

Description

technical field [0001] The invention belongs to the technical field of plant protection, and in particular relates to a synergistic composition for preventing and controlling crop oomycete diseases, which comprises a comfrey traditional Chinese medicine extract and a fungicide. Background technique [0002] Comfrey was first recorded in "Shen Nong's Materia Medica", and it has been clinically used in traditional Chinese medicine for thousands of years. Comfrey has the effects of cooling blood, promoting blood circulation, detoxifying and penetrating rashes, etc. The main components of comfrey are divided into two categories: one is highly fat-soluble compounds, which have a wide range of pharmacological effects such as promoting wound healing, anti-inflammation, anti-oxidation, and antibacterial; the other is water-soluble components, mainly It is polysaccharide. Modern pharmacological studies have shown that comfrey has good antibacterial, anti-tumor, anti-virus, anti-inf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N43/84A01P3/00
CPCA01N43/84A01N65/00A01N65/08
Inventor 刘裴清翁启勇陈庆河李本金王荣波
Owner INST OF PLANT PROTECTION FAAS
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