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Bactericidal composition

A composition, the technology of isotianil, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of delayed drug use, poor control spectrum, narrow control spectrum, etc., so as to reduce production and use costs and improve control effect. , the effect of reducing the amount of drug in the field

Inactive Publication Date: 2014-07-16
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Isotianil is currently mainly used to prevent and control rice blast, with a narrow control spectrum, and strict requirements on the time of application, and the effect is very poor when the application is delayed

Method used

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  • Bactericidal composition
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] Bioassay example 1: Toxicity determination of the combination of Isotianil and syringstrobin against cucumber powdery mildew

[0016] Test object: Cucumber powdery mildew (Erysiphe cichoracearum DC.)

[0017] The test refers to the "Pesticide Indoor Bioassay Test Guidelines NY / T1156.11-2008 and 1156.6-2006" using the pot method. Sowing the cucumber powdery mildew variety (Yuexiu No. 3), the potted seedlings grow to the stage of 2 true leaves, and the number is reserved. On the basis of the preliminary test, 5 series of mass concentrations were set 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. 5 pots were treated for each treatment, and the treatment containing only solvent and surfactant but no active ingredient was set as a blank control. 24 hours after the application, the powdery mildew spore suspension was sprayed and in...

Embodiment 1

[0034] Example 1: 21% Isotianil Syringstrobin Suspending Concentrate

[0035]

[0036] Active components, dispersant, wetting agent, water and other components are uniformly mixed according to the proportion of the formula, and after grinding and / or high-speed shearing, a 21% Isotianil-syringstrobin suspension is obtained.

[0037] This embodiment is applied to the prevention and treatment of wheat powdery mildew. Dilute and spray 21% Isotianil Syringstrobin Suspension Concentrate 4000 times (the effective concentration of Isotianil is 50 μg / ml, and the effective concentration of syringstrobin is 2.5 μg / ml) with water, spray twice continuously, and apply at intervals. The medicine period is 7 days, and the control effects of 7 days and 15 days after the last medicine are 80.2% and 84.3% respectively. 10% Isotianil suspension was used 1000 times (effective concentration is 100 μg / ml) and 20% syringstrobin suspension was 1000 times (effective concentration was 200 μg / ml), us...

Embodiment 2

[0038] Example 2: 20.4% Isotianil Syringstrobin Suspending Concentrate

[0039]

[0040] Active ingredient, dispersant, wetting agent, water and other components are uniformly mixed according to the formula ratio, and after grinding and / or high-speed shearing, 20.4% Isotianil-syringstrobin suspension concentrate is obtained.

[0041] This embodiment is applied to the control of cucumber powdery mildew. Dilute and spray 20.4% Isotianil Syringstrobin Suspension Concentrate 4000 times (the effective concentration of Isotianil is 50 μg / ml, and the effective concentration of syringstrobin is 1 μg / ml) with water, spray twice continuously, and spray at intervals The period was 7 days, and the control effects of 7 days and 15 days after the last dose were 76.5% and 82.0%, respectively. 10% Isotianil suspension was used 1000 times (effective concentration is 100 μg / ml) and 20% syringstrobin suspension was 1000 times (effective concentration was 200 μg / ml), used in the same way, 7 d...

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PUM

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Abstract

The invention discloses a bactericidal composition of which effective components are isotianil and coumoxystrobin in a mass ratio of 50:1-1:50. The composition has an obvious synergistic action, and can be used for controlling diseases of cereals, vegetables and other crops, especially powdery mildew of wheat, powdery mildew of cucumber, rice blast, bacterial blight of rice, rice sheath blight disease, downy mildew of cucumber, gray mold of tomato and the like.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a bactericidal composition containing Isotianil. Background technique [0002] Isotianil, English name: isotianil, is an isothiazole fungicide jointly developed by Bayer and Sumitomo Chemical. It has a small direct killing effect on germs and is an active ingredient with induced resistance and a low dosage. It has a long-lasting effect Longer, less dosage. Isotianil is currently mainly used for the control of rice blast. The control spectrum is narrow, and the application time is strict, and the effect is poor when the application is delayed. Contents of the invention [0003] The object of the present invention is to provide a high-efficiency fungicidal composition containing Isotianil, which is suitable for agricultural use and has an excellent control effect on diseases. [0004] In order to solve the above technical problems, the inventor, through a large number of bioassays ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01P3/00A01N43/16
Inventor 成妙金曹明章杨立平文琴王新军孔建
Owner SHENZHEN NOPOSION AGROCHEM