Varietal impact on final soil populations of Pratylenchus thornei – Wongarbon 2015

Abstract

Key findings • Cereal variety choice can have a large impact on the build-up of Pratylenchus thornei (Pt) populations within paddocks which can then impact on the performance of following crops and/or varieties in the rotation. • Significant differences were evident between varieties with a 22-fold difference in final Pt populations between the best (Suntop[PBR]) and worst (Mitch[PBR]) variety. • Very susceptible varieties should be avoided in paddocks with known Root Lesion Nematode (RLN) populations as they can increase the population to high risk levels in one season. • There was no significant difference between varieties in the level of crown rot inoculum they developed during the season based on post-harvest PreDicta B® assessment.