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Sterilization combination containing cyazofamid

A composition, the technology of Cyazofamid, is applied in the direction of fungicides, biocides, biocides, etc., which can solve the problems of frequent variation of physiological races of pathogenic bacteria, increase the difficulty of chemical control, and increase the burden on farmers, so as to reduce the use of pesticides in the field The effect of reducing environmental pollution and pesticide residues, reducing production and use costs

Inactive Publication Date: 2010-02-17
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tomato late blight is a devastating disease with a worldwide distribution. The physiological race of the pathogenic bacteria varies frequently, and it is difficult to control it with a single drug.
[0003] According to literature reports, due to single drug use and other unscientific drug use methods, many oomycete diseases have developed resistance to the current commonly used pesticides, and frequent application of pesticides has caused increased burden on farmers and increased environmental pollution, increasing the difficulty of chemical control.

Method used

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  • Sterilization combination containing cyazofamid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Biological Assay Example 1: Toxicity determination of the combination of Cyazofamid and Iprocarbam or Oxafefenone against Cucumber Downy Mildew

[0021] Test object: Cucumber downy mildew (Pseudoperonospora cubensis)

[0022] The potted method was used in this experiment. Two cucumber seedlings at the true leaf stage with the same growth were selected, and 5 pots of cucumber seedlings for testing were selected for each treatment, and the numbers were reserved for future use. Spray with a Potter spray tower at a pressure of 50PSI, 5mL per pot. 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. sporangia, the concentration is 3×10 5 sporangia suspension per mL. After inoculation, the cucumber seedlings were placed in an artificial climate box (relative humidity 100%, temperature 15-20°C) for...

example 2

[0045] Bioassay example 2: Toxicity determination of Cyazofamid combined with fluazinam or oxafefenone against tomato late blight

[0046] Test object: Phytophthora infestans (Mont) de Baly)

[0047] The potted method was used in the experiment. Tomato potted plants grow to the stage of 2 true leaves, numbered for later use. According to the activity of the agent and the results of the pre-test, set 5-7 series of mass concentrations. 3 pots per treatment, 4 repetitions, 5 ml of liquid medicine per treatment, evenly spray the liquid medicine on the leaves until they are all wet, and wait for the liquid medicine to dry naturally for later use. And the treatment containing only solvent and surfactant but no active ingredient was set as blank control. After 24 hours of chemical treatment, the sporangia suspension was evenly sprayed on the tomato leaves with a crop sprayer. The preparation process of the sporangia suspension is as follows: the pathogenic bacteria used in the te...

Embodiment 1

[0067] Example 1: 10.2% Cyazofamid · Iprocarbam Suspension Concentrate

[0068] Cyazofamid 10%, Promethachlor 0.2%, Sodium Naphthalene Sulfonate Formaldehyde Condensate 10%, Xanthan Gum 1%, Bentonite 1%, Glycerin 4%, and water to make up to 100%.

[0069] This embodiment is applied to the control of cucumber downy mildew. Dilute and spray 10.2% Cyazofamid·Iprocarbam Suspension Concentrate 1600 times (the effective concentration of Cyazofamid is 62.5 μg / ml, and the effective concentration of Iprocarbam is 2 μg / ml) with water, 7 days and 15 days after the drug The control effects were 90.8% and 89.2% respectively. 8% Cyazofamid Suspension Concentrate is used in the same way by 1000 times (the effective concentration of Cyazofamid is 80 μg / ml) and 10% Imethamethanil Water Dispersible Granules by 1000 times (the effective concentration is 100 μg / ml). After 7 days and 15 days, the control effects were 85.1%, 84.9%, 82.4%, 78.1%, respectively. The synergistic effect of the combin...

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Abstract

The invention relates to a sterilization combination which contains the effective components of (A) cyazofamid and (B) which is one of iprovalicarb, fluazinam or famoxadone, wherein the mass proportion of A and B is 50:1 to 1:50. After mixing, A and B have obvious synergism, and are used for preventing and treating diseases of crops such as fruit trees, flowers, rapes, vegetables and the like, inparticular to oomycete diseases.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a bactericidal composition containing Cyazofim. Background technique [0002] Oomycete disease is a very important disease of crops, often causing significant losses of crops, such as cucumber downy mildew and tomato late blight. Cucumber downy mildew is a common dangerous disease in cucumber cultivation. It has the characteristics of fast transmission, short incubation period, ferocious onset and serious damage. Low temperature and high humidity are the key factors for the occurrence and prevalence of downy mildew. Cucumbers cultivated in protected areas are more conducive to the occurrence of the disease. Tomato late blight is a devastating disease with a worldwide distribution. The physiological race of the pathogenic bacteria varies frequently, and it is difficult to control it with a single drug. [0003] According to literature reports, due to single drug use and other unscie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/12A01N43/50A01N43/40A01N43/76A01P1/00A01P3/00
Inventor 张洪张承来曹明章刘胜召殷如龙王芳胡艳
Owner SHENZHEN NOPOSION AGROCHEM
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