Yellow leaf spot variety trials—southern NSW 2011–13

Abstract

Key findings • Fungicide reduced YLS levels in most trials but failed to eliminate the disease completely. • Observed differences in disease levels were broadly in agreement with published variety resistance ratings. • Yield losses were observed in the more susceptible varieties at moderate infection levels. • Frost events in October 2013 caused variable damage to varieties and impacted on yield comparisons. • At Wagga Wagga in 2011 and 2012, and Cowra in 2013 low disease levels in trials despite inoculations resulted in no significant yield loss associated with disease.