The avirulence profile of L. maculans population on the Prairies remained relatively stable from 2017 to 2021; only AvrLep1 increased noticeably. Even so, the current pathogen population is still highly diverse. Researchers should continue monitoring the pathogen population for early detection of resistance erosion to specific R genes, especially when new R genes are being...

A study of integrated management practices to manage clubroot show a benefit from hydrated lime treatments, particularly for clubroot-susceptible cultivars. “Canadian Canola Clubroot Cluster (C1) Pillar 1: Integrated Disease Management,” Sheau-Fang Hwang and Stephen Strelkov, University of Alberta AgriScience Program (Canola Cluster) under the Canadian Agricultural Partnership Read the full report on the Canola Research...

Farmers need an integrated approach to stop kochia. Take steps to deplete seedbanks, use cultural methods to rapidly achieve crop canopy closure, and apply a tank mix of pre-seed herbicides. “Glyphosate- or auxinic-resistant kochia and Russian thistle Prairie surveys,” Shaun Sharpe, Agriculture and Agri-Food Canada Saskatoon SaskCanola, Alberta Wheat, Manitoba Pulse & Soybean Growers, Manitoba...

Landscape composition affected flea beetle abundance, as well as seeding rate, temperature, predator presence and the type of pest control option selected. “Integrated approaches for flea beetle control II: Incorporating the impacts of plant density, ground predators, and landscape-scale predictive models in the management of flea beetles in the Canadian Prairies,” Alejandro Costamagna, University of...