sentences:  Dispersal of conidiospores and ascospores via running or splashing water provides evidence for the year-to-year intensification and increasing progression of symptoms.Both spore types have also been found dispersed on the wind in the vicinity of diseased trees, yet the means of becoming airborne is still uncertain.There is speculation that this dispersal by air may in fact be due to spore release via rain droplets which become free in air as the droplets evaporate.