© 1968 by Institute of Chartered Foresters
Peridermium pini (Pers.) Lev. and the Resin-top Disease of Scots Pine
I. A Review of the Literature
Forestry Commission, University of Aberdeen
A brief history of the taxonomy of Peridermium pini is given. The various descriptions which appear in the literature are discussed. Infection experiments have shown that stem wounds can become infected, but most natural lesions result from needle infection. Young stands are generally resistant to P. pini, but at 30 to 40 years of age about one-third of the trees become susceptible while the others remain resistant. Resistance to P. pini appears to be heritable although good quantitative data on this point are lacking. The host ranges and geographical distributions of P. pini and Cronartium flaccidutn (Alb. and Schw.) Wint., a closely related species, are given.