Authors
Bożena Cwalina-Ambroziak
Department of Phytopathology and Entomology, University of Warmia and Mazury, Olsztyn, Poland
Maciej Nowak
Department in Olsztynek, Olsztynek, Poland
© 2012 Bożena Cwalina-Ambroziak, Maciej Nowak, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.