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Complex bactericidal composition containing cyazofamid

A composition, the technology of Cyazofamida, is applied in the direction of fungicides, biocides, biocides, etc., to achieve the effects of delaying disease resistance, reducing environmental pollution and pesticide residues, and reducing the amount of pesticides used in the field

Inactive Publication Date: 2010-03-03
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the compounding of Cyazofamid and protective fungicides

Method used

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  • Complex bactericidal composition containing cyazofamid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Bioassay Example 1: Toxicity determination of the combination of Cyazofamid, Chlorothalonil, Thiram, Mancozeb or Prozeb against cucumber downy mildew

[0016] Test object: Cucumber downy mildew pathogen

[0017] The potted method was used in this experiment. Use a brush to wash distilled water at about 10°C and wash the sporangia on the back of cucumber leaves with downy mildew bacteria from the field, and make 3×10 5 sporangia / mL suspension. Select two cucumber seedlings at the true leaf stage with the same growth, and select 5 pots of cucumber seedlings for each treatment, and spray them with a Potter spray tower at a pressure of 50PSI, about 5mL per treatment. Five concentration gradients were set for each agent, and the same amount of water sprayed was used as the blank control. Spray and inoculate the sporangia suspension of cucumber downy mildew after 24 hours of chemical treatment. After inoculation, the cucumber seedlings are placed in an artificial climate b...

example 2

[0047] Biological Assay Example 2: Toxicity determination of the combination of Cyazofamid and ziraz, ziram, ammonium or dyson on tomato late blight

[0048] Test object: Tomato late blight pathogen

[0049]The potted method was used in the experiment. Tomato potted plants grow to the stage of 2-4 true leaves, numbered for later use. Cultivate the pathogenic bacteria used in the test on a suitable medium. After the sporangia are produced, wash the sporangia with sterile water and filter them with double-layer gauze to make 1×10 5 sporangia / mL sporangia suspension. According to the activity of the medicine, set 5-7 series of mass concentrations according to the activity of the medicine. 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 times, and the treatment with only solvent and surfactant but no active ingredient was set as a b...

Embodiment 1

[0074] Example 1: 31% Cyanofamid · Chlorothalonil wettable powder

[0075] 93.5% Cyazofamido 30%

[0076] 98% chlorothalonil technical 1%

[0077] Sodium Lauryl Sulfate (wetting agent) 2%

[0078] Sodium lignosulfonate (dispersant) 5%

[0079] Naphthalenesulfonate (dispersant) 3%

[0080] Kaolin (filler) topped up to 100%.

[0081] The active ingredients, various additives and fillers are fully mixed according to the ratio of the formula, and after being pulverized by an ultrafine pulverizer, 100 grams of 31% Cyanozozole·Chlorothalonil wettable powder is prepared.

[0082] This embodiment is applied to the control of cucumber downy mildew. Dilute and spray 31% Cyazofamid·Chlorothalonil Suspension Concentrate 4000 times (the effective concentration of Cyazofamid is 75 μg / ml, and the effective concentration of Chlorothalonil is 2.5 μg / ml) with water. The effects were 89.8% and 88.2%, respectively. 9% Cyazofamid Suspension Concentrate is used in the same way as 1000 times ...

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Abstract

The invention relates to a bactericidal composition, the active ingredients are cyazofamid (A) and a protective fungicide (B), the weight ratio of A to B is 30:1-1:80; and the protective fungicide B which can be used for the composition comprises chlorothalonil, thiram, ziram, mancozeb, zineb, propineb, amobam and metiram. The composition has obvious synergistic effect and can be used for the disease control of the crops of fruit trees, flowers, cotton, wheat, rice, rapeseed, vegetables and the like, especially the diseases of oomycetes.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a compound bactericidal composition containing Cyazofim. Background technique [0002] In recent years, due to single drug use and other unscientific drug use methods, many diseases such as cucumber downy mildew and tomato late blight have developed resistance to many pesticides currently used, which has become a major problem in chemical control. At the same time, frequent application of pesticides has caused increased economic burden on farmers and increased environmental pollution. It is particularly outstanding in the chemical control of diseases caused by oomycetes. Since there are not many agents to choose from in the prevention and treatment of oomycete diseases such as downy mildew, the phenomenon of single use and repeated use is quite obvious. Synergistic fungicidal compositions can address these challenges. [0003] Cyazofamid is commonly used in English as Cyazofamid, ...

Claims

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Application Information

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IPC IPC(8): A01N55/02A01N43/50A01N37/34A01N47/26A01N47/14A01P3/00
Inventor 文伯健曹明章朱卫锋孙华英王艳武孔建王新军
Owner SHENZHEN NOPOSION AGROCHEM
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