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Bactericidal composition

A composition, the technology of metrafenone, applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of increased resistance management difficulty, emergence of pathogenic bacteria resistance, narrow bactericidal spectrum, etc., to reduce field Dosage, reduce production and use costs, improve the effect of control effect

Active Publication Date: 2013-05-29
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the disadvantages of narrow bactericidal spectrum and relatively high cost when used alone.
And long-term single use of the same agent is likely to induce the emergence of pathogenic bacteria resistance and increase the difficulty of resistance management

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: 51% Metrafenone · Carbendazim Suspension Concentrate

[0038]

[0039] The original drug, dispersant, wetting agent, water and other components are uniformly mixed according to the proportion of the formula, and the 51% metrafenone·carbendazim suspension is obtained after grinding and / or high-speed shearing.

[0040] This embodiment is applied to the control of mango powdery mildew. Dilute and spray 51% metrafenone·carbendazim suspension 5600 times (the effective concentration of metrafenone is 89.3 μg / ml, and the effective concentration of carbendazim is 1.8 μg / ml) with water. The control effects were 93.5% and 88.2% respectively. 20% Metrafenone Suspension Concentrate is used 2000 times (effective concentration is 100 μg / ml) and 40% Carbendazim Suspension Concentrate is 1000 times (effective concentration is 400 μg / ml), using the same method, the control effect of 7 days after the drug They were 81.1% and 74.2%, respectively, and the control effects...

Embodiment 2

[0041] Embodiment 2: 20% metrafenone · thiophanate-methyl suspension

[0042]

[0043] The original drug, dispersant, wetting agent, water and other components are uniformly mixed according to the ratio of the formula, and the 20% metrafenone·thiophanate-methyl suspension is obtained after grinding and / or high-speed shearing.

[0044]This embodiment is applied to the prevention and treatment of wheat powdery mildew. The 20% metrafenone · thiophanate-methyl suspension was diluted and sprayed with water 500 times (the effective concentration of metrafenone was 80 μg / ml, and the effective concentration of thiophanate-methyl was 320 μg / ml). The control effects of days were 93.7% and 90.2%. 20% metrafenone suspension was used 2000 times (effective concentration is 100 μg / ml) and 40% thiophanate-methyl suspension was 500 times (effective concentration was 800 μg / ml), used in the same way, 7 days after the medicine The control effects were 84.6% and 78.3% respectively, and the c...

Embodiment 3

[0045] Example 3: 6% Metrafenone Chlorothalonil Suspension Concentrate

[0046]

[0047] The original drug, dispersant, wetting agent, water and other components are uniformly mixed according to the ratio of the formula, and after grinding and / or high-speed shearing, a 6% metrafenone·chlorothalonil suspension is obtained.

[0048] This embodiment is applied to the prevention and treatment of powdery mildew of melon. Dilute and spray 6% metrafenone·chlorothalonil suspension 600 times (the effective concentration of metrafenone is 83.3 μg / ml, and the effective concentration of chlorothalonil is 16.7 μg / ml) with water. The control effects were 94.7% and 90.3% respectively. 500 times of 5% metrafenone suspension (effective concentration is 100 μg / ml) and 1000 times of 50% chlorothalonil suspension (effective concentration of 500 μg / ml), using the same method, the control effect of 7 days after the drug They were 82.1% and 78.3%, respectively, and the control effects were 76.5...

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Abstract

The invention relates to a bactericidal composition. The bactericidal composition comprises metrafenone (A) and at least one of (B) which are used as active ingredients, wherein the (B) comprises carbendazim, thiophanate-methyl and chlorothalonil; and the mass ratio of the (A) to the (B) is (50:1)-(1:50). After the (A) and the (B) are compounded, the composition has an obvious synergistic effect, and is used for preventing and controlling powdery mildew of cucumber, eggplant, balsam pear, melon, wheat, strawberry, mango, grape, apple and chrysanthemum.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a bactericidal composition for preventing and treating powdery mildew. Background technique [0002] Powdery mildew is an important disease in agricultural production, often causing heavy losses in agricultural production. In recent years, due to single drug use and unscientific drug use, the drug resistance of powdery mildew has become more and more serious, which has become a major problem in chemical control. [0003] Metrafenone, the English common name Metrafenone, is lipophilic, easily absorbed by plants, and has a unique mechanism of action. It inhibits the growth of pathogens by interfering with the transmission and action of pathogenic motor proteins, and has no cross-resistance with other fungicides. It is effective against almost all growth stages of pathogenic bacteria, including spore formation and germination, and can be used to prevent and control powdery mildew of va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/34A01N47/18A01N37/34A01N35/04A01P1/00
Inventor 张洪曹明章张华东王新军李广泽孔建
Owner SHENZHEN NOPOSION AGROCHEM
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