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A bactericidal composition for preventing and treating rice black-streaked dwarf disease

A technology of rice black-streaked dwarf and a composition, which is applied in the field of pesticide application, can solve the problem of no relevant reports on the black-streaked dwarf disease, and achieve the effects of delaying the generation of drug resistance of pathogens, reducing the amount of use, and achieving obvious synergies.

Active Publication Date: 2020-05-01
广西南宁市宾阳县聚丰米业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the application of the combination of turmeric extract and hexafluorophos as active ingredients in the prevention and treatment of black-streaked dwarf disease

Method used

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  • A bactericidal composition for preventing and treating rice black-streaked dwarf disease
  • A bactericidal composition for preventing and treating rice black-streaked dwarf disease
  • A bactericidal composition for preventing and treating rice black-streaked dwarf disease

Examples

Experimental program
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Effect test

preparation example Construction

[0022] One, the preparation of turmeric extract

[0023] The preparation method of described turmeric extract is as follows:

[0024] 1) Wash the turmeric rhizome, dry in the shade, pulverize with a pulverizer, and pass through a 40-mesh sieve;

[0025] 2) Put the crushed turmeric into the reaction kettle, add 10 times the amount of 95% ethanol and soak it at room temperature for 24 hours, then extract it under the condition of 40°C for 40 minutes under the ultrasonic frequency of 60Hz, collect the extract, and extract it twice according to the above method , combine all extracts;

[0026] 3) The resulting extract was filtered with a Buchner funnel, the filtrate was concentrated under reduced pressure with a rotary evaporator to an extract with a relative density of 1.15, and the extract was freeze-dried into powder to obtain a turmeric extract.

[0027] 2. Indoor toxicity test

[0028] Test method: Feed planthoppers with diseased plants to infect planthoppers, and the rate...

Embodiment 1

[0035] Example 1: 22% turmeric extract · hexafluorophos wettable powder (1:10)

[0036] Take by weighing turmeric extract (active ingredient) 2%, hemifluorophos (active ingredient) 20%, alkylphenol polyoxyethylene ether (dispersant) 5%, saponin powder (wetting agent) 4.5%, attapulgite ( Filler) 10%, kaolin (filler) to make up to 100%; mix each component evenly in a mixing tank, pulverize through a jet mill and then mix evenly to obtain 22% turmeric extract · hexafluorophos wettability powder.

Embodiment 2

[0037] Example 2: 10.5% turmeric extract · hexafluorophos wettable powder (1:20)

[0038] Weigh turmeric extract (active ingredient) 0.5%, hemifluorophos (active ingredient) 10%, lignosulfonate (dispersant) 3.5%, sodium lauryl sulfate (wetting agent) 3%, diatomaceous earth (Filler) is supplemented to 100%; each component is uniformly mixed in a mixing tank, pulverized by a jet mill and then mixed uniformly to obtain 10.5% turmeric extract · hexafluorophos wettable powder.

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Abstract

The invention relates to a bactericidal composition for preventing and treating rice black-streaked dwarf disease. Effective component of the bactericidal composition is composed of a rhizoma curcumae longae extract and Dufulin, wherein the weight radio of the rhizoma curcumae longae extract to the Dufulin is 1 to (5 to 25). Through compounding the rhizoma curcumae longae extract and the Dufulin, the bactericidal composition is used for preventing and treating the rice black-streaked dwarf disease, the synergistic interaction is obvious, so that the application amount of chemical pesticides is reduced. The bactericidal composition has the advantages that the generation of drug resistance of germs is delayed, is safe and friendly to crops and environment, and the like, and is in accord with the direction of agricultural sustainable development.

Description

technical field [0001] The invention relates to the technical field of pesticide application, in particular to a fungicidal composition for preventing and treating rice black-streaked dwarf disease. Background technique [0002] Phosphate, chemical name N-[2-(4-methylbenzothiazolyl)]-2-amino-2-fluorophenyl-O,O-diethylphosphonate, molecular formula: C19H22FN2O3PS. Poison fluorophos was first developed by the Key Laboratory of Green Pesticides and Agricultural Bioengineering of the Ministry of Education of Guizhou University and the Fine Chemical Research and Development Center of Guizhou University in the national "Tenth Five-Year Plan" research project, the National 973 Project, the National Natural Science Foundation of China and Guizhou Industrial Research Projects and other projects With the support, by using a compound in sheep - α-phosphoramidate as a guide, a biological antiviral agent - hexafluorophos was finally researched and developed, and then Guizhou University a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/48A01N57/24A01P1/00A01P3/00
CPCA01N57/24A01N65/00A01N65/48A01N2300/00
Inventor 李桂香
Owner 广西南宁市宾阳县聚丰米业有限公司
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