Variation in pathogenicity among the three subspecies of Phytophthora alni on detached leaves, twigs and branches of Alnus glutinosa
The pine shoot beetle Tomicus piniperda as a plausible vector of Fusarium circinatum in northern Spain
The European race of Gremmeniella abietina hosts a single species of Gammapartitivirus showing a global distribution and possible recombinant events in its history