Abstract
Young barley plants at the two tiller stage were inoculated with a suspension of Ascochyta phyllachoroides Sacc. & Malbr. f. melicae Fautrey conidia. After 14 days, apparently healthy leaves were removed, surface sterilised, and incubated on malt extract agar. A. phyllachoroides f. melicae was successfully reisolated from these leaves. The teleomorph Didymella phleina Punith. & Årsvoll, known to occur overseas as a pathogen of barley and other grasses, developed ascomata in vitro. This is the first record of D. phleina in New Zealand.