Plant Protect. Sci., 2002, 38(11):536-538 | DOI: 10.17221/10548-PPS

Occurrence of pathotypes of Diplocarpon rosae on roses in Belgium

L. Leus, G. Kegelaers, E. Van Bockstaele, M. Höfte
1 Department of Plant Genetics and Breeding, CLO, 9090 Melle, Belgium
2 Laboratory of Phytopathology, FLTBW, Ghent University, 9000 Ghent, Belgium E-mail: l.leus@clo.fgov.be

Monospore cultures of black spot (Diplocarpon rosae Wolf) were established from isolates collected on outdoor grown roses at different locations in Belgium. These monospore cultures were tested on rose cultivars and species with different levels of natural resistance to examine the possible existence of different pathotypes. For this purpose a screening protocol including scoring after artificial infection was developed on in vitro plantlets. Differences between the examined isolates proved that there exist different pathotypes of Diplocarpon rosae in Belgium.

Keywords: black spot; Diplocarpon rosae; Rosa spp.; monospore cultures; pathotypes

Published: December 31, 2002  Show citation

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Leus L, Kegelaers G, Van Bockstaele E, Höfte M. Occurrence of pathotypes of Diplocarpon rosae on roses in Belgium. Plant Protect. Sci. 2002;38(SI 2 - 6th Conf EFPP):536-538. doi: 10.17221/10548-PPS.
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