Use of interactions of cultures to distinguish monilinia laxa from monilinia fructicola
Sonoda, R.M.; Ogawa, J.M.; Manji, B.T.
Plant Disease 66(4): 325-326
M. laxa and M. fruticola were distinguished by characteristic interactions between isolates when grown on oatmeal agar. Distinct black lines formed between M. fructicola and M. laxa colonies within 10 days and profuse microconidia by 20 days of incubation. Light, double lines were visible between some of the M. laxa isolates after 15-20 days of incubation. The formation of distinct lines within 10 days was used as one of the criteria that a benomyl-resistant Monilinia isolate with scalloped margins on potato-dextrose agar was M. fructicola.