INCIDENCE OF ANNOSUM ROOT AND BUT ROT ON ABIES BORNMULLERIANA AND ABIES CILICICA

The present study was carried out during 2008 in order to determine the presence of Annosum root and butt rot on living Abies bornmülleriana and Abies cilicica trees in 3 different stands located in Bolu and Antalya (Akseki) provinces. Totally, 255 wood samples, taken from fresh stump surfaces of fir trees just after felling, were carried to laboratory and examined for the existence of the anamorph stage of Heterobasidion (Spiniger meineckellus (Olson) Stalpers) species. Disease incidence was 28.2% and 18.8% on the pure and mixed stands of A. bornmülleriana in Bolu, respectively, and 11.5% on the pure A. cilicica stand in Akseki. It is concluded that 78.5 % of discs cut from A. cilicicawere contaminated by airborne spores of the fungus