10397: Integration of fertility management, cultivar selection and alternative spray treatments to optimize control of foliar diseases of greenhouse grown tomatoes

Dafermos, N.G.; Kasselaki, A.M.; Malathrakis, N.E. and Leifert, C. (2007) Integration of fertility management, cultivar selection and alternative spray treatments to optimize control of foliar diseases of greenhouse grown tomatoes. Paper presented at 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

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Summary

Powdery mildew caused by Leveillula taurica (Lev.) Arn. is one of the most serious foliar diseases of greenhouse and open field tomato. The disease is currently controlled with the use of organic fungicides and sulphur, the latter being the only product permitted in organic crops. The aim of this study was to investigate the potential of controlling the disease by integrating: a) hybrids of low susceptibility to the disease, b) organic fertilisers (chitin) and c) alternative spray treatments. Some of the combinations of the above factors were highly effective in decreasing the percentage of disease severity. Specifically the combination of the hybrid of low susceptibility with the addition of chitin in the substrate and the spray treatment Milsana®+chitosan, was equally effective to sulphur. These results indicate that the combination of the above factors could probably be used as an alternative to sulphur for control of L. taurica in the greenhouse.

Document Language:	English
Keywords:	Leveillula taurica, integrated control, powdery mildew, tomato, chitin, fertility management
Subject Areas:	Crop husbandry > Crop health, quality, protection
Research affiliation:	European Union > QualityLowInputFood > Subproject 3: Crop production systems International Conferences > QLIF Congress 2007 > 3 Crop production / soil management
Total budget (Euro):	0
Orgprints ID Number:	10397
Contact:	Kasselaki, Dr. Anna-Maria
Deposited On:	14 March 2007
EPrint Type:	Conference paper
Published?:	Published
Type of presentation:	Paper
Peer Review Status:	Peer-reviewed and accepted
Additional Publishing Information:	The final version of this paper is published in: Niggli, Urs; Leifert, Carlo; Alföldi, Thomas; Lück, Lorna and Willer, Helga, Eds. (2007) Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). University of Hohenheim, Germany, March 20 – 23, 2007. Research Institute of Organic Agriculture FiBL, CH-Frick.http://orgprints.org/10417/ Printed copies may be ordered from the FiBL Shop at www.shop.fibl.org.
Related Links:	http://orgprints.org/10417/

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