Rice sheath blight disease prevention and control agent

A rice sheath blight and chemical technology, applied in the directions of biocides, fungicides, biocides, etc., can solve the problems of increasing environmental pollution, unsatisfactory effects, and tediousness, and achieves reducing environmental pollution, reducing the number of times of use, and saving raw materials. Effect

Inactive Publication Date: 2015-02-11
JURONG AGRI TECH PROMOTION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many kinds of pesticides for the control of rice sheath blight, most of which need to be applied in different periods of rice, which is not only cumbersome, but also increases environmental pollution after repeated application, and the effect is not ideal

Method used

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  • Rice sheath blight disease prevention and control agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Party:

[0023] Marine Bacillus B-9987 bacterial liquid 5g, hexaflumuron 1g, Jinggangmycin 2g, hexaconazole 1g, Coptis chinensis 25g, Scutellaria baicalensis 20g, chitosan 20g, glyceryl monostearate 0.01g.

[0024] The number of viable bacteria in the marine bacillus B-9987 bacterium liquid is 10 8 .

[0025] Preparation:

[0026] (1) Wash Coptis rhizome and Scutellaria baicalensis, soak in 2 times the volume of water for 2 hours, then add 6 volumes of pure water, reflux and extract once, each time for 1 hour, combine the extracts, concentrate to 30 °C and the relative density is 1.01, and the total Extraction solution;

[0027] (2) Get chitosan, add a certain amount of pure water, heat to dissolve at 40°C, keep warm to obtain chitosan solution;

[0028] (3) Take hexaflumuron, Jinggangmycin, hexaconazole and glyceryl monostearate, add a certain amount of pure water, mix with the above-mentioned total extract and chitosan solution, and disperse at a low speed of 1000...

Embodiment 2

[0032] Party:

[0033] Marine Bacillus B-9987 bacterial liquid 5g, hexaflumuron 5g, Jinggangmycin 8g, hexaconazole 7g, Coptis chinensis 35g, Scutellaria baicalensis 30g, chitosan 40g, glyceryl monostearate 0.05g.

[0034] The number of viable bacteria in the marine bacillus B-9987 bacterium liquid is 10 10 .

[0035] Preparation:

[0036] (1) Wash Coptis rhizome and Scutellaria baicalensis, soak in 2 times the volume of water for 2 hours, then add 8 volumes of pure water, reflux and extract 3 times, each time for 3 hours, combine the extracts, concentrate to 30 °C and the relative density is 1.05, and the total Extraction solution;

[0037] (2) Get chitosan, add a certain amount of pure water, heat to dissolve at 50°C, keep warm to obtain chitosan solution;

[0038] (3) Take hexaflumuron, Jinggangmycin, hexaconazole and glyceryl monostearate, add a certain amount of pure water, mix with the above-mentioned total extract and chitosan solution, disperse at a low speed of 300...

Embodiment 3

[0042] Party:

[0043] Marine Bacillus B-9987 bacterial liquid 5g, hexaflumuron 3g, Jinggangmycin 5g, hexaconazole 4g, Coptis chinensis 30g, Scutellaria baicalensis 25g, chitosan 30g, glyceryl monostearate 0.03g.

[0044] The number of viable bacteria in the marine bacillus B-9987 bacterium liquid is 10 9 .

[0045] Preparation:

[0046] (1) Wash Coptis rhizome and Scutellaria baicalensis, soak in 2 times the volume of water for 2 hours, then add 7 volumes of pure water, reflux and extract twice, each time for 2 hours, combine the extracts, concentrate to 30 °C and the relative density is 1.03, and the total Extraction solution;

[0047] (2) Get chitosan, add a certain amount of pure water, heat and dissolve at 45°C, keep warm to obtain chitosan solution;

[0048] (3) Take hexaflumuron, Jinggangmycin, hexaconazole and glyceryl monostearate, add a certain amount of pure water, mix with the above-mentioned total extract and chitosan solution, and disperse at a low speed of 2...

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PUM

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Abstract

The invention discloses a rice sheath blight disease prevention and control agent. The rice sheath blight disease prevention and control agent is prepared from the following components in part by weight: 5 parts of Bacillus marinus B-9987 bacterial solution, 1-5 parts of hexaflumuron, 2-8 parts of validamycin, 1-7 parts of hexaconazole, 25-35 parts of rhizoma coptidis, 20-30 parts of Scutellaria baicalensis, 20-40 parts of chitosan, and 0.01-0.05 parts of glycerin monostearate. Compared with the prior art, the rice sheath blight disease prevention and control agent has prominent chemical effect and long lasting period, can reduce the using times of the chemicals, saves the raw materials and reduces the environment pollution.

Description

technical field [0001] The invention relates to a control agent for rice sheath blight, which is applied in the field of agriculture. Background technique [0002] Rice sheath blight, also known as moire, is commonly known as flower foot stalk, rotten foot blast, eyebrow spot. It is caused by infection by Rhizoctonia solani, and it mostly occurs under high temperature and high humidity conditions. Sheath blight is one of the major diseases in rice production, which is a serious hazard in southern rice areas. The disease prevents the rice from heading, or there are more grains in the heading, and the grain weight decreases. The disease can occur from the seedling stage to the ear stage. The diseased leaf sheaths will produce small dark green water-soaked blurred spots near the water surface, which will gradually expand into oval or moiré shapes. The middle part is gray-green or gray-brown. Pale yellow or off-white, the central tissue destruction is translucent, and the edg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/32A01P3/00A01N63/00A01N47/34A01N43/16A01N43/653
Inventor 阮祥忠
Owner JURONG AGRI TECH PROMOTION CENT
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