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Agricultural bactericidal composition

A composition, carbendazim technology, applied in the directions of fungicides, biocides, chemicals for biological control, etc., can solve the problems of low activity, large dosage, easy to produce resistance, etc., to overcome the disease resistance. performance, reduce production and use costs, and improve control effects

Inactive Publication Date: 2010-04-07
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when used alone, the activity is low, the dosage is large, and resistance is likely to occur

Method used

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  • Agricultural bactericidal composition
  • Agricultural bactericidal composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Bioassay example 1: Toxicity determination of pyrithrimol or pyrithrimol sulfonate combined with carbendazim, thiabendazole, benomyl or thiophanate-methyl against cucumber powdery mildew

[0018] Test object: Cucumber powdery mildew pathogen

[0019] The potted method was used in this experiment. Cucumber powdery mildew varieties are susceptible to sowing, cultivated in pots until the stage of 2-4 true leaves, numbered for future use. Use pure water with a small amount of surface active substances to absorb fresh spores from cucumber leaves covered with powdery mildew bacteria to make a spore concentration of 1×10 5 individual / mL spore suspension for later use. On the basis of the preliminary test, set 5-7 series of mass concentrations according to the activity of the drug. Spray the liquid medicine evenly on the leaf surface until it is completely moistened, and wait for the liquid medicine to dry naturally for later use. For each treatment, 3 pots were repeated 4 ...

example 2

[0052]Bioassay Example 2: Toxicity determination of pyrithrimol or pyrithrimol sulfonate combined with carbendazim, benomyl, thiabendazole, and thiophanate-methyl against banana leaf spot

[0053] Test object: Banana leaf spot fungus

[0054] The test uses the growth rate method (plate method). On the basis of the preliminary test, according to the test treatment, the pre-thawed sterilized medium was quantitatively added to the sterile conical flask, and 5ml of the liquid medicine was sequentially taken from low concentration to high concentration and added to 45ml of hot medium (PDA Culture medium, in the Erlenmeyer flask of 45-50 ℃), after shaking well, when the culture medium drops to suitable temperature, pour into the glass culture dish of diameter 90mm rapidly, each culture dish is poured into 10ml of culture medium with medicine. Set aside horizontally to cool and form into slabs. Each concentration was replicated five times. The treatment without the active ingredie...

Embodiment 1

[0071] Embodiment 1: 25.5% pyridylsulfonate · carbendazim suspension concentrate

[0072] Pyrifluzate 25%

[0073] Carbendazim 0.5%

[0074] Sodium methylnaphthalene sulfonate formaldehyde condensate (wetting and dispersing agent) 10%

[0075] Xanthan gum (thickener) 1%

[0076] Bentonite (carrier) 1%

[0077] Glycerol (antifreeze) 1%

[0078] Water Make up to 100%.

[0079] Mix active ingredients, wetting and dispersing agent, thickener, carrier, water and other components according to the ratio of the formula, and then grind and / or high-speed shear to obtain 25.5% pyrithrimolsulfonate multibacterium Ling suspending agent.

[0080] This embodiment is applied to the control of cucumber powdery mildew. Dilute the 25.5% pyrithrimol sulfonate · carbendazim suspension with 1250 times (the effective concentration of pyrithrimol sulfonate is 200 μg / ml, and the effective concentration of carbendazim is 4 μg / ml) and spray it with water, and spray it for 7 days after the medicin...

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Abstract

The invention relates to a bactericidal composition comprising the effective components of (A) and (B), wherein the (A) is ethirimol or bupirimate, the (B) is one of sanmate, benomyl, thiophanate-methyl or thiabendazole, and the mass proportion of the A to the B is 50:1-1:50. The composition has an obvious synergistic action and can be used for preventing and treating diseases on crops, such as fruit trees, cotton, paddy, wheat, vegetables and the like, especially for preventing and treating fungoid diseases.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a bactericidal composition containing pyrithrimol or pyrithrimol sulfonate. Background technique [0002] In recent years, due to single and unscientific drug use, many diseases have become resistant to the currently used pesticides, such as cucumber powdery mildew, wheat powdery mildew, grape powdery mildew, banana leaf spot, etc. problem. At the same time, frequent application of pesticides has caused increased burden on farmers and increased environmental pollution. Therefore, there is an urgent need for new varieties of fungicides with high efficiency, low toxicity and environmental protection. [0003] Ethirimol (ETHIRMOL) or ethirimol sulfonate (BUPIRIMATE), which are adenosine deaminase inhibitors, are systemic fungicides with protective and therapeutic effects. It can be quickly absorbed by plant roots, stems, and leaves, and circulates to various parts of the plant body, ...

Claims

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Application Information

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IPC IPC(8): A01N47/18A01N43/54A01N47/38A01N47/34A01N43/78A01P3/00
Inventor 张洪孔建刘胜召殷如龙曹明章王新军
Owner SHENZHEN NOPOSION AGROCHEM
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