Mixed sterilization combination

A composition and crop technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of high cost and resistance, and achieve the improvement of drug efficacy, the reduction of production and use costs, and the obvious synergistic effect. Effect

Active Publication Date: 2010-02-17
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Boscalid is a new type of high-efficiency agent for the control of crop powdery mildew, but it is expensive to use alone and has the risk of resistance

Method used

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  • Mixed sterilization combination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1: 10.2% boscalid · pyrithrimol sulfonate EC

[0046] Boscalid 10%, pyrimethrin sulfonate 0.2%, N-methylpyrrolidone 10%, Nongru 1601# 5%, Nongru 500# 5%, xylene supplemented to 100%.

[0047] This embodiment is applied to the control of strawberry powdery mildew. Dilute and spray 10.2% boscalid·pyrimolsulfonate EC 400 times (the effective concentration of boscalid is 250 μg / ml, and the effective concentration of pyrithrimolsulfonate is 5 μg / ml) with water. Day and 15 days of control effect were 94.8%, 92.2%. 15% boscalid suspending agent is used in the same way at 500 times (boscalid effective concentration is 300 μg / ml) and 10% pyrithrimol sulfonate EC is used at 1000 times (effective concentration is 100 μg / ml), The control effects were 86.1%, 85.5%, 73.4%, 71.8% after 7 days and 15 days after the medicine. The synergistic effect of boscalid and pyrithrimol sulfonate was obvious, and the control effect on strawberry powdery mildew was significantly better t...

Embodiment 2

[0050] Embodiment 2: 5% boscalid · pyrimethrimol sulfonate microemulsion

[0051] Boscalid 2.5%, pyrimethrin sulfonate 2.5%, N-methylpyrrolidine 10%, isopropanol 10%, Nongru 500# 5%, Nongru 1601# 5%, water to 100% .

[0052] This embodiment is applied to the control of grape powdery mildew. Dilute 5% boscalid·pyrimolsulfonate microemulsion by 250 times (the effective concentration of boscalid is 100 μg / ml, and the effective concentration of pyrithrimolsulfonate is 100 μg / ml) and spray it with water. The control effects of 7 days and 15 days were 95.7% and 93.2% respectively. 20% boscalid suspending agent is used at 1000 times (the effective concentration is 200 μg / ml) and 10% pyrithrimol sulfonate emulsifiable concentrate is used at 1000 times (the effective concentration is 200 μg / ml) in the same way, 7 days after the medicine and 15 days of control effect were 86.4%, 84.3% and 82.4%, 80.3%. Boscalid and pyrithrimol sulfonate have obvious synergistic effects, and the cont...

Embodiment 3

[0055] Example 3: 25% boscalid · pyrithrimol sulfonate emulsion in water

[0056] Boscalid 10%, pyrithrimol sulfonate 15%, N-methylpyrrolidone 10%, calcium dodecylbenzenesulfonate 5%, Nongru 600# 5%, water to make up to 100%.

[0057] This example is applied to powdery mildew of zucchini. Dilute and spray 25% boscalid·pyrimolsulfonate aqueous emulsion 1000 times (the effective concentration of boscalid is 100 μg / ml, and the effective concentration of pyrithrimolsulfonate is 150 μg / ml) with water. The control effects of 7 days and 15 days were 96.9% and 95.8% respectively. 25% boscalid suspending agent is used at 1000 times (effective concentration is 250 μg / ml) and 25% pyrithrimol sulfonate EC is used at 1000 times (effective concentration is 250 μg / ml), and used in the same way, 7 days after the medicine and 15 days of control effect were 88.7%, 86.7% and 87.3%, 84.3%. The synergistic effect of boscalid and pyrithrimol sulfonate was obvious, and the control effect on Zygod...

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Abstract

The invention relates to a sterilization combination which contains the effective components of boscalid and bupirimate or ethirimol, wherein the mass proportion of the two effective components is 50:1 to 1:50. After mixing, the boscalid and the bupirimate or the ethirimol have obvious synergism, and are used for preventing and treating powdery mildew of crops such as vegetables, wheats, 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 boscalid. Background technique [0002] Powdery mildew is a very important disease, which occurs occasionally on cucumber, wheat, grape, flowers and other crops, causing heavy losses. According to literature reports, powdery mildew has developed resistance to triazoles, and new fungicides for powdery mildew control are urgently needed. [0003] Boscalid, English common name boscalid, chemical name: 2-chloro-N-(4′-chlorobiphenyl-2-yl) nicotinamide, is a new type of nicotinamide fungicide developed by BASF, Germany, with a wide bactericidal spectrum , has protective and therapeutic effects, and can be used to prevent and treat powdery mildew. Mainly by inhibiting mitochondrial succinate dehydrogenase, hindering the tricarboxylic acid cycle, interfering with cell division and growth. Inhibits spore germination, mycelial growth and sporoc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01N43/40A01P3/00
Inventor 张洪张承来曹明章刘胜召殷如龙张建明刘硕
Owner SHENZHEN NOPOSION AGROCHEM
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