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Sterilizing composite and preparation thereof

A technology of fungicides and compositions, which is applied in the field of fungicide compositions and preparations for the prevention and treatment of cereal crop diseases, which can solve the problems of limited control range of fungicides, poor control effect, and inability to provide comprehensive protection for crops, etc., to achieve long-lasting effects The effects of long life, reduced dosage, and safe crops after cropping

Active Publication Date: 2013-10-02
LIANBAO CROP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When crop diseases occur, multiple diseases often occur at the same time. The three diseases of cereal crops, rust, sheath blight, and powdery mildew, occur in similar periods. The use of fungicides alone has limited control range and poor control effect, and cannot provide comprehensive protection for crops. Protect

Method used

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  • Sterilizing composite and preparation thereof
  • Sterilizing composite and preparation thereof
  • Sterilizing composite and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, indoor toxicity assay of bactericidal composition of the present invention

[0041] In order to screen the compound ratio of fenpropidin and thiophanate-methyl, the indoor toxicity test was carried out with different ratios of fenpropidin·thiophanate-methyl. The pot method was used to test the toxicity. At the same time, the toxicity of single agent of fenpropidin and thiophanate-methyl was determined respectively.

[0042] Select the susceptible wheat varieties for potting, and wait for the seedlings to grow to the 2-3 leaf stage for later use. The fresh spores of powdery mildew fungus produced on the leaves of the diseased wheat within 24 hours were evenly shaken off and inoculated on the treated potted wheat at the 2-3 leaf stage. No less than 3 pots per treatment, 10 plants per pot. Each treatment was repeated three times, sprayed with 200-fold, 400-fold, 600-fold, 800-fold, and 1000-fold diluted medicaments, and then cultured under suitable conditi...

Embodiment 2、20

[0053] Embodiment 2, 20% fenpropidin thiophanate-methyl suspoemulsion

[0054] 10% fenpropidin, 10% thiophanate-methyl, 4% pull open powder BX, 0203B5% Nongrui, 10% tetrahydrosugar alcohol, 1% xanthan gum, 0.1% silicone defoamer, 100% water supplement . Add wetting dispersant, thickener and defoamer to the original medicine of thiophanate-methyl to make suspending agent, then add the original medicine of fenpropidin for mixing, then add emulsifier and solvent, add water and mix evenly.

Embodiment 3、36

[0055] Embodiment 3, 36% fenpropidin·thiophanate-methyl suspoemulsion

[0056] Fenpropidin 30%, thiophanate-methyl 6%, D4255%, castor oil polyoxyethylene ether 7%, tetrahydrofuran 15%, sodium acrylate 0.5%, silicone defoamer 0.1%, water 100%. Add wetting dispersant, thickener and defoamer to the original medicine of thiophanate-methyl to make suspending agent, then add the original medicine of fenpropidin for mixing, then add emulsifier and solvent, add water and mix evenly.

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Abstract

The invention relates to the field of the pesticide preparation, and discloses sterilizing composite and preparation thereof. The sterilizing composite consists of fenpropidin and thiophanate methyl at the mass ratio of 1:(0.2-10). The sterilizing composite disclosed by the invention can be prepared into suspoemulsion, wettable powder and water dispersible granule with accessory ingredient and excipient, and the suspoemulsion, the wettable powder and the water dispersible granule can be widely used for preventing and curing the powdery mildew, the banded sclerotial blight, the rust disease and the like of cereal crops.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a bactericidal composition and a preparation thereof, in particular to a bactericidal composition and a preparation thereof for preventing and treating diseases of cereal crops. Background technique [0002] Cereal crops, such as wheat, barley, rice rust, sheath blight, and powdery mildew, are common in cereal crops and difficult to control. [0003] Rust is a kind of plant disease caused by the parasitism of rust in fungi, which harms the leaves, stems and fruits of plants. Rusts generally only cause local infection, and the affected parts can produce small pustules or blisters, cups, and hairs of different colors due to the accumulation of spores, and some can also cause tumors, rough skin, and arbuscular branches on the branches. , curved branches and other symptoms, or cause fallen leaves, scorched shoots, poor growth, etc. In severe cases, the spores are densely packed i...

Claims

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Application Information

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IPC IPC(8): A01N47/34A01P3/00A01N43/40
Inventor 王洲卢桂鲜
Owner LIANBAO CROP TECH