Antifungal Effectiveness of Nanosilver Colloid against Rose Powdery Mildew in Greenhouses

Hae Sic Kim; Hyun Suk Kang; Gyo Jin Chu; Hong Sik Byun

doi:10.4028/www.scientific.net/SSP.135.15

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Formation of Hollow Zinc Oxide by Oxidation and Subsequent Thermal Treatment
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Antifungal Effectiveness of Nanosilver Colloid against Rose Powdery Mildew in Greenhouses
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Antifungal Effectiveness of Nanosilver Colloid against Rose Powdery Mildew in Greenhouses

Abstract:

The antifungal effectiveness against rose powdery mildew using antimicrobial nanosilver colloidal solution was investigated. Double-capsulized nanosilver was prepared by chemical reaction of silver ion with aid of physical method, reducing agent and stabilizers. The average diameter of nanosilver was about 1.5 nm. They were highly stable and very well dispersive in aqueous solution. The Transmission electron microscopy and UV-vis spectrometer were used for measurements of size analysis and their stability, respectively. The nanosilver colloidal solution of concentration of 5000 ppm was diluted in 10 ppm of 500 kg and sprayed at large area of 3306 m2polluted by rose powdery mildew. The white rose powdery mildew fade out above 95 % after 2 days and was not recurred for a week. The antifungal effects were observed by an optical microscope and photographs.

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Nanocomposites and Nanoporous Materials VIII

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Periodical:

Solid State Phenomena (Volume 135)

Pages:

15-18

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.135.15

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Online since:

February 2008

Authors:

Hae Sic Kim, Hyun Suk Kang, Gyo Jin Chu, Hong Sik Byun

Keywords:

Antifungal, Nanosilver, Powdery Mildew, Rose

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References

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