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Bactericidal composition

The technology of a composition and fenprodone is applied in the directions of biocides, animal repellents, plant growth regulators, etc., which can solve the problems of increasing the difficulty of resistance control, the emergence of pathogen resistance, and the narrow sterilization spectrum, and achieves a reduction in field The effect of drug dosage, reduction of production and use costs, and improvement of control effects

Active 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

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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  • Bactericidal composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: 51% Benzodone·Carbendazim suspending agent

[0038]

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

[0040] This embodiment is applied to control mango powdery mildew. Dilute the 51% benzofenone·carbendazim suspension with water at a rate of 5600 times (the effective concentration of fenfenone is 89.3 μg / ml, and the effective concentration of carbendazim is 1.8 μg / ml), and the 7 days and 15 days after the drug is sprayed. The control effects were 93.5% and 88.2%, respectively. 20% benzoxanthone suspension is 2000 times (effective concentration is 100μg / ml) and 40% carbendazim suspension is 1000 times (effective concentration is 400μg / ml), using the same method, the control effect after 7 days They were 81.1% and 74.2%, respectively, and the control effec...

Embodiment 2

[0041] Example 2: 20% benzophenone·thiophanate-methyl suspension agent

[0042]

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

[0044]This embodiment is applied to control wheat powdery mildew. Dilute the 20% benzofenone·thiophanate-methyl suspension by 500 times (the effective concentration of benzofenone is 80 μg / ml, and the effective concentration of thiophanate-methyl is 320 μg / ml) with water to dilute and spray. The control effects were 93.7% and 90.2% respectively. 20% benzoxanthone suspension is 2000 times (effective concentration is 100μg / ml) and 40% thiophanate-methyl suspension is 500 times (effective concentration is 800μg / ml), used in the same way, 7 days after the drug. The control effects were 84.6% and 78.3%, respectively, and the control effects at 15 days after the ...

Embodiment 3

[0045] Example 3: 6% benzoxazone·chlorothalonil suspending agent

[0046]

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

[0048] This embodiment is applied to control melon powdery mildew. Dilute the 6% benzodiazepine·chlorothalonil suspension agent by 600 times (the effective concentration of benzofenone is 83.3μg / ml, and the effective concentration of chlorothalonil is 16.7μg / ml) with water to dilute and spray. The control effects were 94.7% and 90.3%, respectively. 5% benzophenone suspension is 500 times (effective concentration is 100μg / ml) and 50% chlorothalonil suspension is 1000 times (effective concentration is 500μg / ml), using the same method, the control effect after 7 days They were 82.1% and 78.3%, respectively, and the control effects at 15 days after th...

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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 present 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, which often causes heavy losses in agricultural production. In recent years, due to single drug use and unscientific drug use, powdery mildew resistance has become more and more serious, which has become a major problem in chemical control. [0003] Metrafenone, commonly known as Metrafenone in English, has lipophilicity, is 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 pathogen 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. It can be used to control powdery mildew of vari...

Claims

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Application Information

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Patent Type & Authority Patents(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