Overmatige vruchtvorming is waargenomen in Denemarken, de Bondsrepubliek Duitsland (Fagus) en Nederland (Quercus, Betuia, Fagus, en in zekere mate bij Ρ i nus). ###>Excessive fructification has been recorded in Denmark, the Federal Republic of Germany (Fagus), and the Netherlands (Quercus, Betula, Fagus and to some extend Pinus).