Cereal disease management and diagnostics What we learned in 2021 to improve management in 2022

Abstract

Key findings • Favourable climatic conditions in 2021 resulted in the increased prevalence of a range of cereal diseases across NSW, especially the wheat leaf diseases stripe rust, septoria tritici blotch (STB) and yellow leaf spot (YLS). • In combination with increased cereal stubble loads produced in 2021, pathogen levels are likely to be elevated again in 2022. • Predicted La Niña conditions over summer will maintain or increase the risk of stripe rust in 2022. • Multiple stripe rust pathotypes were prevalent across NSW in 2021. Keep up to date with the latest varietal resistance ratings. • Minimise disease impacts in 2022 by using an integrated approach to management. • NSW DPI plant pathologists can assist with correct diagnosis and advice on appropriate management options.