Southern NSW root and crown disease paddock survey – 2014 and 2015

Abstract

Key findings »» 55% of paddocks tested in 2014 and 80% of paddocks in 2015 had crown rot. »» 90% of paddocks tested in 2014 and 2015 had take all. »» The previous crop grown in the paddock can greatly influence the pre-sowing levels of crown rot and take all in the following year, particularly in a cereal on cereal rotation. »»Most paddocks with pre-sowing levels of crown rot and take all had increased inoculum levels throughout the growing season. »» Crop rotation and duration, and stubble management can reduce crown rot and take all infection risk.