Studies on black cherry (Prunus serotina Ehrh.) occurrence in the area of comparative tree species examination, Nagylózs.
Coenological studies have been carried out in Nagylózs 5F experimental forest subcompartment (Győr-Moson-Sopron county) to examine the occurrence of invasive black cherry in different forest stands planted in 1969. According to our monitoring results, black cherry is present in all parcels of the forest subcompartment and shows considerable spreading in the surrounding areas. Among the 12 studied parcels, the species became dominant in the canopy layer of sweet chestnut, Norway spruces and Scots pine parcels; where the presence of the former planted trees had decreased considerably. It occurs only infinitesimally, mainly with seedlings in linden parcels with high canopy closure. Statistical analyses confirmed negative correlation between the canopy closure and black cherry dominance in shrub layer. According to our studies, we would like to draw the attention to the importance of canopy closure and shading effect of the second canopy layer during the control of black cherry.