Plant Protect. Sci., 2002, 38(11):494-496 | DOI: 10.17221/10533-PPS

Chitosan in the control of rose powdery mildew and downy mildew

T. Wojdyła
Division of Plant Protection, Research Institute of Pomology and Floriculture, 96-100 Skierniewice, Poland

Microcrystalline chitosan at concentrations from 0.025% to 0.2% was evaluated in the control of Sphaerotheca pannosa var. rosae and Peronospora sparsa. Shrubs were sprayed with chitosan 4 times at weekly intervals. Depending on the concentration used, chitosan reduced development of powdery mildew from 43.5% to 77% and its effectiveness was similar to triforine at concentration 0.03% (standard). Observations of rose leaves under light microscopic, which had been done 24 h after spraying showed, that chitosan caused strong hyphae deformation which almost completely collapse. Cell walls of the pathogen were sunken, corrugated and longitudinally cracked. When applied against P. sparsa effectiveness of the compound at concentration 0.0625% was similar like oxadixil at dose 0.016% (standard) and ranged from 55% to 74%. Efficacy of chitosan decreased with increasing of its concentration.

Keywords: rose; Sphaerotheca pannosa var. rosae; Peronospora sparsa; control; chitosanFigure

Published: December 31, 2002  Show citation

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Wojdyła T. Chitosan in the control of rose powdery mildew and downy mildew. Plant Protect. Sci. 2002;38(SI 2 - 6th Conf EFPP):494-496. doi: 10.17221/10533-PPS.
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    References

    1. BENHAMOU N., NICOLE M. (1999): Cell biology of plant immunisation against microbial infection: The potential of induced resistance in the controlling plant diseases. Plant Physiol. Biochem., 37: 703-719. Go to original source...
    2. BORKOWSKI J. (1998): Effectiveness of chitosan applied as spray on growth, healthiness and yield of tomato. In: ORLIKOWSKI L.B., SKRZYPCZAK CZ. (eds): Biological Agents and their Effectiveness in the Control of Plant Pathogens. Skierniewice, April 23-24: 123-126.
    3. B ORKOWSKI J., N IEKRASZEWICZ A., S TRUSZCZYK H. (2000): Inď??uence of chitosan on the growth and healthiness of the lettuce "Zimowa Nansena", top onion and glasshouse tomato "Corindo". Seventh Workshop "New Aspects an Chemistry and Application of Chitin and its Derivatives, Poznań, October 17-18th, 2000, Polish Chitin Society, Łódź (2000).
    4. LAFONTAINE P.J., BENHAMOU N. (1996): Chitosan treatment an emerging strategy for enhancing resistance of greenhouse tomato plants to infection by Fusarium oxysporum f.sp. radicis-lycopersici. Biocontrol Sci. Techn., 6: 111-124. Go to original source...
    5. P OSPIESZNY H. (1995): Inhibition of tobacco mosaic virus (TMV) infection by chitosan. Phytopath. Pol., 10 (XXII): 69-74.
    6. P OSPIESZNY H., Ż OŁOBOWSKA L., M AĆKOWIAK A., STRUSZCZYK H. (1995): Antibacterial activity of chitin derivatives. In: ORLIKOWSKI L.B., SKRZYPCZAK CZ. (eds): Biological Control of Soil-Borne and Post-Harvest Pathogens. Skierniewice: 99-102.
    7. STÖSSEL P., LEUBA J.L. (1984): Effect of chitosan, chitin, and some aminosugars on growth of various soilborne phytopathogenic fungi. Phytopathol. Z., 111: 82-90. Go to original source...

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