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Fungicide composition

A composition and fungicidal technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of serious powdery mildew resistance, loss of agricultural production, unfavorable resistance control, etc., and reduce environmental pollution and pesticide residues. , reduce the cost of production and use, overcome the effect of disease resistance

Active Publication Date: 2013-04-24
SHENZHEN NOPOSION AGROCHEM
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Powdery mildew is an important fungal 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] Triazole fungicides mainly inhibit the biosynthesis of ergosterol, thereby inhibiting or interfering with the development of spores and haustoria, the growth of mycelia and the formation of spores. They have a better effect on powdery mildew, but powdery mildew bacteria in many areas It has developed resistance to triazole fungicides, and the effect of single use is not satisfactory
However, the relative price of single use is relatively high, and long-term single use is not conducive to resistance control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1: 51% Metrafenone·Difenoconazole Suspension Concentrate

[0068]

[0069] The original drug, dispersant, wetting agent, water and other components are uniformly mixed according to the proportion of the formula, and the 51% metrafenone difenoconazole suspension is obtained after grinding and / or high-speed shearing.

[0070] This embodiment is applied to the prevention and treatment of mango powdery mildew. Dilute 51% Metrafenone Difenoconazole Suspension Concentrate 5600 times (the effective concentration of Metrafenone is 89.3 μg / ml, and the effective concentration of Difenoconazole is 1.8 μg / ml) and spray it with water, 7 days after the drug and 15 days of control effect were 96.5%, 94.2%. 20% Metrafenone Suspension Concentrate by 2000 times (effective concentration is 100 μg / ml) and 10% difenoconazole water dispersible granule by 1000 times (effective concentration is 100 μg / ml), use the same method, after the medicine 7 The control effects were 83.1%...

Embodiment 2

[0071] Embodiment 2: 20% metrafenone·hexaconazole emulsion in water

[0072]

[0073] Add the original drug, solvent and emulsifier together to dissolve into a uniform oil phase; mix the water-soluble components with water to obtain a water phase; mix the oil phase with the water phase under high-speed stirring to obtain 20% benzene Hexaconazole aqueous emulsion.

[0074] This embodiment is applied to the prevention and treatment of wheat powdery mildew. 20% Metrafenone Hexaconazole Water Emulsion was diluted and sprayed with water 2000 times (the effective concentration of Metrafenone is 25 μg / ml, and the effective concentration of Hexaconazole is 75 μg / ml), and the control effect of 7 days and 15 days after treatment They are 89.7% and 92.9% respectively. 20% Metrafenone Suspension Concentrate is used 2000 times (effective concentration is 100 μg / ml) and 10% Hexaconazole Suspension Concentrate is 1000 times (effective concentration is 100 μg / ml), using the same method, ...

Embodiment 3

[0075] Embodiment 3: 5% metrafenone penconazole microemulsion

[0076]

[0077] Add the original drug, solvent, and emulsifier together to dissolve into a uniform oil phase; mix the water-soluble components with water to obtain a water phase; mix the oil phase with the water phase under high-speed stirring to obtain 5% benzene Penconazole microemulsion.

[0078] This embodiment is applied to the prevention and treatment of powdery mildew of melon. The 5% metrafenone·pentconazole microemulsion was diluted with water 500 times (the effective concentration of metrafenone is 40 μg / ml, and the effective concentration of penconazole is 60 μg / ml) and sprayed with water, the control effect of 7 days and 15 days after treatment They are 91.2% and 86.3% respectively. 500 times of 5% metrafenone suspension (effective concentration is 100 μg / ml) and 500 times of 5% penconazole suspension (effective concentration of 100 μg / ml) are used in the same way. They were 82.1% and 80.2% respe...

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Abstract

The invention relates to a fungicide composition which has active ingredients including metrafenone (A) and at least one selected from the following fungicide components (B): difenoconazole, hexaconazole, propiconazole, flusilazole, penconazole, myclobutanil, tetraconazole, triadimefon, metconazole, diniconazole, triflumizole or flutriafol.

Description

technical field [0001] The invention relates to a fungicidal composition, especially a fungicidal composition containing metrafenone. Background technique [0002] Powdery mildew is an important fungal 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] Triazole fungicides mainly inhibit the biosynthesis of ergosterol, thereby inhibiting or interfering with the development of spores and haustoria, the growth of mycelia and the formation of spores. They have a better effect on powdery mildew, but powdery mildew bacteria in many areas It has developed resistance to triazole fungicides, and the effect of single use is not ideal. In addition, most triazole fungicides are likely to cause phytotoxicity to crops during use. [0004] Metrafeno...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N35/04A01N55/10A01N43/50A01P3/00
Inventor 张洪曹明章张华东王新军孔建李广泽
Owner SHENZHEN NOPOSION AGROCHEM
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