%0 Research article
%T Incidence of butt rot at final felling and at first thinning of the subsequent rotation of Norway spruce stands in south-western Sweden
%A Rönnberg, Jonas
%A Berglund, Mattias
%A Johansson, Ulf
%D 2007
%J Silva Fennica
%V 41
%N 4
%R doi:10.14214/sf.272
%U https://silvafennica.fi/article/272
%X The incidence of butt rot in Norway spruce stands at final felling and  at first thinning of the subsequent rotation was investigated at 20  sites in south-western Sweden. There was a negative correlation between  the incidence at first thinning and the basal area of decayed trees at  final felling. Using incidence of decay or basal area of decayed trees  to predict disease transfer between rotations is difficult and requires  the inclusion of several factors, making predictions uncertain. The  level of infection found at final felling in this study varied between 7  and 71.8%, indicating that the risk of spore infection transfer to the  next rotation was probably quite low. Long-term experiments are required  to reveal the effect of stump treatment on disease transmission between  rotations.