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Combination sterilization composition

A composition and crop technology, applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of high price and resistance of bacteria, and achieve the reduction of production and use costs, improvement of drug efficacy, and reduction of selection pressure. Effect

Active Publication Date: 2010-01-06
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The price of cyprodinil is relatively high when used alone, and it is easy to cause drug resistance of bacteria

Method used

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  • Combination sterilization composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1: 10.2% Cyprodinil·Pyrimethol EC

[0049] Cyprodinil 10%, pyrimethrin 0.2%, N-methylpyrrolidone 10%, Nongru 1601# 5%, Nongru 500# 5%, xylene supplemented to 100%.

[0050]This embodiment is applied to the control of strawberry powdery mildew. Dilute and spray 10.2% cyprodinil · pyrimethol EC 400 times (the effective concentration of cyprodinil is 250 μg / ml, and the effective concentration of pyriflux is 5 μg / ml) with water, and the prevention and treatment of 7 days and 15 days after treatment The effects were 90.8% and 88.2%, respectively. 15% cyprodinil suspension was used in the same way by 500 times (the effective concentration of cyprodinil was 300 μg / ml) and 20% pyrimethol EC by 1000 times (the effective concentration was 200 μg / ml). The control effects of days and 15 days were 85.1%, 84.5% and 76.4%, 71.2%, respectively. The synergistic effect of the combination of cyprodinil and pyrimethrimol is obvious, and the control effect on strawberry powdery m...

Embodiment 2

[0053] Embodiment 2: 5% cyprodinil·pyrimolsulfonate microemulsion

[0054] Cyprodinil 2.5%, pyrimethrin sulfonate 2.5%, N-methylpyrrolidine 10%, isopropanol 10%, Nongru 500# 5%, Nongru 1601# 5%, water to 100% .

[0055] This embodiment is applied to the control of grape powdery mildew. Dilute and spray 5% cyprodinil·pyrimidin sulfonate microemulsion by 200 times (the effective concentration of cyprodinil is 125 μg / ml, and the effective concentration of pyrithrimol sulfonate is 125 μg / ml). The control effects of 7 days and 15 days were 95.7% and 93.2% respectively. 20% cyprodinil suspension concentrate is used in the same way by 1000 times (effective concentration is 200 μg / ml) and 20% pyrithrimol sulfonate wettable powder is used in the same way (effective concentration is 200 μg / ml). The control effects of 7 days and 15 days were 78.4%, 76.3% and 86.4%, 78.3%, respectively. The synergistic effect of the combination of cyprodinil and pyrithrimol sulfonate is obvious, and t...

Embodiment 3

[0058] Embodiment 3: 25% cyprodinil·pyrimetholsulfonate emulsion in water

[0059] Cyprodinil 10%, pyrithrimol sulfonate 15%, N-methylpyrrolidone 10%, calcium dodecylbenzene sulfonate 5%, Nongru 600# 5%, water to make up to 100%.

[0060] This example is applied to powdery mildew of zucchini. Dilute and spray 25% cyprodinil·pyrimidin water emulsion 1000 times (the effective concentration of cyprodinil is 100 μg / ml, and the effective concentration of pyrithrimol sulfonate is 150 μg / ml) with water, after the medicine The control effects of 7 days and 15 days were 96.9% and 95.8% respectively. 20% Cyprodinil Suspension Concentrate 1000 times (effective concentration is 200 μg / ml) and 25% pyridyl sulfonate emulsifiable concentrate 1000 times (effective concentration is 250 μg / ml), used in the same way, 7 days after the medicine and 15 days of control effect were 82.7%, 80.3% and 87.3%, 81.3%. The synergistic effect of the combination of cyprodinil and pyrithrimol sulfonate is o...

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Abstract

The invention relates to a sterilization composition which comprises the effective components of cyprodinil (A) and ethirimol or bupirimate (B), wherein the weight ratio of A and B is 50:1 to 1:50. A and B have obvious synergistic action after combination, and are used for controlling powdery mildew of crops such as vegetables, wheat, fruit trees, flowers and the like.

Description

technical field [0001] The invention relates to a bactericidal composition, in particular to a compound bactericidal composition containing cyprodinil. Background technique [0002] Powdery mildew is a very important disease, which occurs occasionally on cucumber, wheat, grape, flowers and other crops, causing heavy losses. At present, protective fungicides and triazole fungicides are mainly used to control powdery mildew. According to literature reports, powdery mildew bacteria in some places in China have developed resistance to triazole agents, so new alternative control agents are urgently needed. [0003] Cyprodinil, English common name Cyprodinil, chemical name 4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine, is a protective fungicide. The mechanism of action of cyprodinil is a methionine biosynthesis inhibitor, which works after spore germination, prevents fungi from penetrating the cell wall of crops, and can also inhibit the growth of mycelia. It can be used to ...

Claims

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Application Information

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IPC IPC(8): A01N43/54A01P3/00
Inventor 张洪殷如龙张承来曹明章刘胜召孔建
Owner SHENZHEN NOPOSION AGROCHEM
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