Oomycete killing composition

A technology of compositions and fungicides, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of high cost, low dosage, easy to produce resistance, etc., to improve the control effect, reduce the pressure of single selection, A clear synergistic effect

Active Publication Date: 2010-06-30
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has good control effects on downy mildew, anthracnose, gray mold, blight, powdery mildew, rust, rice blast, and apple scab, and has a low dosage and unique mechanism of action. It also has a certain protective effect, but The cost of using it alone is high, and the same bacteria are prone to resistance

Method used

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  • Oomycete killing composition
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] Biological Assay Example 1: Indoor Toxicity Determination of Compound Composition of the present invention to Cucumber Downy Mildew

[0028] Test object: Cucumber downy mildew (Pseudoperonospora cubensis)

[0029] 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 cultivation...

Embodiment 1

[0080] Formulation Example 1: 20.2% Iprocarbam·Azoxystrobin Suspension Concentrate

[0081] Ipromethamid 20%, Azoxystrobin 0.2%, Sodium Naphthalene Sulfonate Formaldehyde Condensate 10%, Sodium Lignosulfonate 10%, Xanthan Gum 1%, Silicone Oil 1%, Glycerol 5%, Water Top up to 100%.

[0082] This embodiment is applied to the control of cucumber downy mildew. Dilute and spray 20.2% Iproprobin·Azoxystrobin suspension concentrate with water according to the dosage of 100g·a.i. / ha, and the control effect is 92.5% and 90.2% after 7 days and 15 days after application. 10% Iprocarbam Suspension Concentrate is used at 180 g·a.i. / ha and 25% Azoxystrobin Suspension Concentrate is at 80 g·a.i. / ha, and used in the same way. 7 days and 15 days after the application of the 10% iprocarbamil suspension, the control effects were 84.1%, 80.2% respectively; 7 days and 15 days after the application of the 25% azoxystrobin suspension, the control effects were 72.7%, 68.6% respectively . The syne...

Embodiment 2

[0083] Formulation Example 2: 30% Ipromethastrobin Pyraclostrobin Suspension Concentrate

[0084] Promethacarb 20%, pyraclostrobin 10%, nonylphenol polyglycol ether 6%, sodium lignosulfonate 10%, aluminum magnesium silicate 1%, bentonite 1%, ethylene glycol 4%, water to make up to 100%.

[0085] This embodiment is applied to control grape downy mildew. Dilute and spray 30% Ipromethastrobin·pyraclostrobin suspension concentrate at 120g·a.i. / ha with water, and the control effects are 94.5% and 93.2% after 7 days and 15 days after application. 20% Promethachlor Suspending Concentrate is used at 150 g·a.i. / ha and 25% pyraclostrobin EC is used at 80 g·a.i. / ha in the same way. 7 days and 15 days after the application of 20% Iprocarbam suspension, the control effects were 85.2%, 84.3% respectively; 7 days and 15 days after the application of 25% pyraclostrobin EC, the control effects were 81.4%, 76.6% respectively . The synergistic effect of the combination of iprocarbam and pyra...

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Abstract

The invention relates to an oomycete killing composition. The active ingredients of the composition comprise iprovalicarb (A) and strobilurin fungicides (B) in the mass ratio of 100:1 to 1:100.

Description

technical field [0001] The present invention relates to a bactericidal composition. Background technique [0002] Iprocarbamide, English common name iprovalicarb, chemical name 2-methyl-1-[(1-p-methylphenylethyl)carbamoyl]-(S)-propylcarbamate isopropyl ester, Bayer The amino acid fungicides newly developed by the company affect the metabolism of amino acids, have a unique mechanism of action, and have no cross-resistance with known fungicides. Iprocarbamide exerts protective and therapeutic effects on crops by inhibiting the growth of sporangia germ tubes, mycelium growth and spore formation, and can effectively prevent and control diseases caused by oomycete pathogens. However, long-term single application will lead to the development of drug resistance in fungal strains, resulting in reduced or even complete failure of the compound's control effect, which in turn will increase the cost of drug use. [0003] Methoxyacrylate fungicides are derived from natural microorganis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/24A01N47/12A01N43/54A01N37/50A01N43/40A01N43/88A01N37/36A01P3/00
Inventor 张洪张承来曲哲刘胜召曹明章孔建
Owner SHENZHEN NOPOSION AGROCHEM
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