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A pesticide composition for preventing and treating plant disease and application thereof

A pesticide composition and plant disease technology, applied in the fields of application, plant growth regulator, botanical equipment and methods, etc., can solve the problems of preventing plant diseases that have not been reported, and achieve obvious preventive and therapeutic effects and significant antibacterial activity , high antibacterial activity

Active Publication Date: 2010-04-21
INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the prevention of plant diseases

Method used

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  • A pesticide composition for preventing and treating plant disease and application thereof
  • A pesticide composition for preventing and treating plant disease and application thereof
  • A pesticide composition for preventing and treating plant disease and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: Research on the synergistic effect of the composition of the present invention on the prevention and treatment of wheat powdery mildew

[0015] 1. Strain Blumeria graminis W14 (compatibility with wheat variety "Zheng 98")

[0016] 2. The susceptible wheat variety "Zheng 98"

[0017] Determination of artificially purified physcion and chrysophanol in specific weight ratio composition (9:1-1:9), single dose of emodin methyl ether, single dose of chrysophanol on wheat powdery mildew bacteria by using the method of detached leaves Activity (EC 50 ), according to Finney's synergistic rule to calculate the synergistic effect (expressed in synergistic multiple SR). When wheat has 1 leaf and 1 heart, cut off the head and tail of the first leaf, take 4cm long leaf segments and put them in the petri dishes for each treatment, 5 segments per dish, and apply the medicine under the micro-spray, 3 dishes for each treatment, the spraying amount for 5ml. After drying ...

Embodiment 2

[0020] Embodiment 2: Research on the synergistic effect of the composition of the present invention on the prevention and treatment of cucumber powdery mildew

[0021] 1 strain Sphaerotheca fuliginea (compatibility with cucumber variety "Xintai Mici")

[0022] 2. The susceptible cucumber variety "Xintaimici"

[0023] Cucumber cotyledon method was used to determine the activity of the composition of artificially purified emodin methyl ether and chrysophanol in a specific weight ratio (9:1-1:9), a single dose of emodin methyl ether, and a single dose of chrysophanol against cucumber powdery mildew (EC 50 ), according to Finney's synergistic rule to calculate the synergistic effect (expressed in synergistic multiple SR). When the cotyledons of cucumber are fully expanded, the cotyledons are placed in vitro in a water agar petri dish, 6 pieces per dish, and sprayed under a micro-spray, 3 dishes are treated, and the spraying amount is 5ml. After drying in the shade, use a micro-...

Embodiment 3

[0026] Example 3: Field Control Effect of 5% Composition on Wheat Powdery Mildew

[0027] By weight, 5 parts of artificially purified chrysophanin and chrysophanol composition (combined according to the weight ratio of emodin methyl ether and chrysophanol is 2:8 (w / w)), compounded with 10 parts of WPA-9503 Adjuvant, mixed with 85 parts of kaolin, pulverized to obtain a wettable powder with 5% active ingredient as the test agent, measured the field control effect of wheat powdery mildew, the results showed that 5% composition can effectively control the occurrence of wheat powdery mildew.

[0028]

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Abstract

The invention relates to a pesticide compound for preventing plant disease, wherein said compound comprises emodin monomethyl ether and chrysophanol at 1:1-1:9 mass percentages; the compound can be obtained from Polygonaceae and soybean plant Chinese drug or made from manual purification or manual composition. Said compound added with other carrier and agent can be made into liquid, powder, emulsion, etc, whose effective component is 0.1-30%. The invention can generate sub metabolite with significant bacterial resistance.

Description

technical field [0001] The invention relates to a pesticide composition for preventing and controlling plant diseases and the application of the pesticide composition. Background technique [0002] With the global attention to resources and the environment, the sustainable development strategy has become the theme of the common response and recognition of all countries in the world. "Organic agriculture" and "green food" have become the direction of agricultural development. Biorational pesticides whose residues are harmonious with the environment have gradually become a new direction of pesticide research. There are unique secondary metabolites in plants, and their exact functions in plants have not yet been understood. But they were successful in preventing the fungus from infesting the plants. For example: the volatile oil extracted from Ephedra and Asarum has strong inhibitory effect on plant pathogenic fungi (Zhang Guozhen, Fan Ying, Ding Wanlong, etc., the antifungal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N31/08A01N25/02A01N25/14A01P3/00
Inventor 喻大昭杨小军倪汉文杨立军王少南曾凡松
Owner INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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