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Scheper, R.W., Fisher, B.M., Bowen, J.K., Amponsah, N.T. and Hedderley, D.I. 2019. Successive passaging through an apple host of six low-virulent <i>Neonectria ditissima </i>isolates increased virulence in one of them. New Zealand Plant Protection. 72, (Jul. 2019), 103–116. DOI:https://doi.org/10.30843/nzpp.2019.72.300.