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Sterilizing composition

A composition and fungicide technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of decreased control effect and increased resistance risks, and achieves reduction of production and use costs, environmental pollution and pesticide residues , the effect of overcoming disease resistance

Inactive Publication Date: 2010-02-17
DONGGUAN RUIDEFENG BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using it alone will inevitably increase the risk of resistance and cause a decline in the control effect

Method used

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  • Sterilizing composition
  • Sterilizing composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] Bioassay Example 1: Toxicity determination of (A) cyprodinil and (B) tridemorph, dodemorph, fenpropimorph compounded 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 times, and the treatment containing on...

Embodiment 1

[0048] Embodiment 1: 51% cyprodinil · fenpropimorph suspension concentrate

[0049] Cyprodinil 50%

[0050] Fenpropimorph 1%

[0051] Sodium methylnaphthalene sulfonate formaldehyde condensate (wetting and dispersing agent) 10%

[0052] Xanthan gum (thickener) 1%

[0053] Bentonite (carrier) 1%

[0054] Glycerol (antifreeze) 1%

[0055] Water Make up to 100%.

[0056] Mix the active ingredient active ingredient, wetting and dispersing agent, thickener, carrier, antifreeze agent and water according to the ratio of the formula, and then grind and / or high-speed shear to obtain 51% cyprodinil. Fenpropimorph suspension concentrate.

[0057] This embodiment is applied to the prevention and treatment of wheat powdery mildew. Dilute and spray 51% cyprodinil · fenpropimorph suspension 1000 times (the effective concentration of cyprodinil is 500 μg / ml, and the effective concentration of fenpropimorph is 10 μg / ml) with water. The control effects of days were 98.5%, 94.7%. 50% cypr...

Embodiment 2

[0058] Embodiment 2: 31% cyprodinil · tridemorph microemulsion

[0059] Cyprodinil 1%

[0060] Trimorpholine 30%

[0061] N-methylpyrrolidone (solvent) 10%

[0062] Isopropanol (co-solvent) 15%

[0063] Nongru 500# (emulsifier) ​​5%

[0064] Nongru 1601# (emulsifier) ​​5%

[0065] Water Make up to 100%.

[0066] Add the original drug, solvent, co-solvent and emulsifier together to dissolve into a uniform oil phase; mix the water-soluble components with water to prepare the water phase; mix the oil phase with the water phase under high-speed stirring to obtain 31% Cyprodinil · Tridemorph microemulsion.

[0067] This embodiment is applied to chrysanthemum powdery mildew. The 31% cyprodinil · tridemorph microemulsion was diluted and sprayed with water 1000 times (the effective concentration of cyprodinil was 10 μg / ml, and the effective concentration of tridemorph was 300 μg / ml). The control effects of days were 92.7% and 87.7%. 5% cyprodinil suspension is used by 1000 ti...

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Abstract

The invention relates to a sterilizing composition which comprises the active ingredients of cyprodinil (A) and a morpholine bactericide (B), wherein the morpholine bactericide (B) is any one of tridemorph, dodemorph and fenpropomorph, and the mass ratio of the cyprodinil (A) to the morpholine bactericide (B) is 50:1-1:50. After the cyprodinil (A) and the morpholine bactericide (B) are compounded,the sterilizing composition has a marked synergistic function, and is used for the disease control of crops including fruit trees, flowers, cotton, rice, wheat, vegetables and the like, in particularfor the control of powdery mildew.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a compound bactericidal composition containing cyprodinil. Background technique [0002] In recent years, powdery mildew has become resistant to the currently used pesticides due to monotherapy and unscientific drug use, which has become a major problem in chemical control. 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] Cyprodinil, the English common name of Cyprodinil, and its chemical name 4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine, is a protective fungicide whose mechanism of action is a methionine biosynthesis inhibitor. After spore germination, it works to prevent fungi from penetrating the cell wall of crops and inhibit the growth of mycelium. No c...

Claims

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Application Information

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IPC IPC(8): A01N43/84A01N43/54A01P1/00A01P3/00
Inventor 张洪张承来曹明章刘胜召文伯健王艳武孔建
Owner DONGGUAN RUIDEFENG BIO TECH
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