Regional crown rot management – Coonamble 2013

Abstract

Key findings • QT14381, LRPB Lancer[PBR], LRPB Spitfire[PBR] and Sunguard[PBR] were between 0.93 t/ha to 0.54 t/ha higher yielding than EGA_Gregory[PBR] under high crown rot pressure. • Targeting fungicide application at the base of plants increased yield under high crown rot pressure by 0.57 t/ha with droppers and 0.44 t/ha with the on crop application. However, these strategies do not provide complete control still being 1.21–1.34 t/ha lower yielding than no fungicide application under lower crown rot levels. Application 50 cm above crop height provided no benefit. • Slashing reduced yield by 0.57 t/ha with no added CR but had no yield penalty with added CR.