Scab disease of firethorn at selected localities in Slovakia
Gabriela Juhásová, Helena Ivanová, Katarína Adamčíková, Marek Kobza, Andrea Čerevkováhttps://doi.org/10.17221/461-PPSCitation:Juhásová G., Ivanová H., Adamčíková K., Kobza M., Čerevková A. (2004): Scab disease of firethorn at selected localities in Slovakia. Plant Protect. Sci., 40: 42-48.
The health state of firethorn, Pyracantha coccinea, was evaluated in different types of functional urban greenery at locations in Slovakia during 2001 (34 sites) and 2002 (18 sites). The occurrence of scab disease, caused by the fungus Spilocaea pyracanthae, was recorded. The degree of damage to firethorn fruits was evaluated; it ranged from 3.6% to 98.8% (2001) and from 9.1% to 38.5% (2002). Germination of conidia of the fungus ranged between 42 and 50% at 24–25°C after 24 h, and from 49% to 61% after 48 h. The germination of conidia collected on different parts of the plants from July to September was compared. Conidia taken from olive-green spots on fruits in September had the highest germination (53–89%).
Pyracantha coccinea; Spilocaea pyracanthae; Slovakia