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Bactericidal and synergistic composition for controlling rice blast

A technology for rice blast disease and a composition is applied in the field of pesticide application, which can solve the problems of no related reports on the prevention and control of rice blast disease, and achieve the effects of delaying the generation of bacterial resistance, obvious synergistic effect, and reducing the amount of use.

Inactive Publication Date: 2017-09-15
广西南宁市田园聚丰农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no relevant report on the application of the composition with turmeric extract and thiazil as active ingredients in the prevention and treatment of rice blast

Method used

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  • Bactericidal and synergistic composition for controlling rice blast

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] One, the preparation of turmeric extract

[0019] The preparation method of described turmeric extract is as follows:

[0020] 1) Wash the turmeric rhizome, dry in the shade, pulverize with a pulverizer, and pass through a 50-mesh sieve;

[0021] 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 and 60Hz frequency ultrasonic wave for 40 minutes, collect the extract, and extract it twice according to the above method. Combine all extracts;

[0022] 3) The resulting extract is filtered with a Buchner funnel, the filtrate is concentrated under reduced pressure with a rotary evaporator to an extract with a relative density of 1.15, and the extract is freeze-dried into powder to obtain a turmeric extract.

[0023] 2. Indoor toxicity determination of turmeric extract and thianidin against rice blast

[0024] After pre-testing to determine the...

Embodiment 1

[0030] Example 1: 30% turmeric extract·thianil wettable powder (5:1)

[0031] Take by weighing turmeric extract (active ingredient) 25%, thiazilamide (active ingredient) 5%, lignosulfonate (dispersant) 4.5%, saponin powder (wetting agent) 4%, white carbon black (filler) ) 10%, kaolin (filler) to make up to 100%; mix each component evenly in a mixing tank, pulverize through a jet mill and mix evenly to obtain 30% turmeric extract. powder.

Embodiment 2

[0032] Example 2: 22% turmeric extract·thianil wettable powder (10:1)

[0033] Turmeric extract (active ingredient) 20%, Thianodil (active ingredient) 2%, Alkylbenzenesulfonate calcium salt (dispersant) 3.5%, Sodium lauryl sulfate (humectant) 3.5%, Diatom The soil (filler) is added to 100%; each component is uniformly mixed in a mixing tank, pulverized by a jet mill and then mixed uniformly to obtain a 22% turmeric extract·thiazamide wettable powder.

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PUM

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Abstract

The invention relates to a bactericidal and synergistic composition for controlling rice blast. The bactericidal and synergistic composition comprises the effective components of a curcuma extract and tiadinil at the weight ratio of (15-1):(1-15). Through reasonably compounding the curcuma extract and the tiadinil, the bactericidal and synergistic composition is used for controlling the rice blast, and the control effect is significantly higher than that of single dosage. The bactericidal and synergistic composition is obvious in synergetic effect, the usage amount of a chemical pesticide can be reduced, the insecticide resistance of pathogenic bacteria is delayed, and the bactericidal and synergistic composition is safe to people, livestock and environment, and meets the sustainable development direction of agriculture.

Description

technical field [0001] The invention relates to the technical field of pesticide application, in particular to a bactericidal and synergistic composition for preventing and treating rice blast. Background technique [0002] Rice blast is one of the important diseases of rice. It can cause a substantial reduction in production, generally 10% to 20% in popular years, and 40% to 50% in severe cases, or even no harvest. Rice blast mainly damages rice leaves, stalks, and panicles, and most of them occur on leaves and nodes, which can cause different degrees of yield reduction. Produce. At present, rice blast has occurred in all rice producing areas in my country. [0003] Turmeric, also known as: turmeric, Baodingxiang, Haoming, turmeric, yellow silk, etc., comes from the dry rhizome of Curcumalonga L., a plant of the ginger family. Turmeric is produced in Taiwan, Fujian, Guangdong, Guangxi, Yunnan, Tibet and other provinces, and is widely cultivated in East and Southeast Asi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/48A01N43/828A01P3/00
CPCA01N65/00A01N43/82A01N65/48A01N2300/00
Inventor 李桂香
Owner 广西南宁市田园聚丰农业科技有限公司