Are microconidia infectious principles in Neonectria ditissima?

Abstract Comparative studies of different isolates Neonectria ditissima obtained from canker lesions and rotten fruit showed that both five-septate macroconidia aseptate microconidia were capable germination by germ-tube formation, but growth commenced earlier proceeded faster the former than latter type spore. Further, following wound inoculation apple with numbers conidia (50, 500 or 5000 per wound) resulting rot always significantly larger microconidia, in conidial types lesion size increased higher inoculum loads. These data confirm are causing infections, indicate their contribution to success pathogen field is probably negligible.