The recovery of #Puccinia graminis from aecia on #Berberis is nearing completion, with 36 samples collected in 2026 tested on a dozen grass and cereal species. Third year of data for Alicia Culot's PhD thesis, providing valuable information on primary hosts and formae speciales.
Frédéric Suffert
First 2026 sampling day for stem #rust (#Puccinia graminis) on barberry (#Berberis vulgaris) around Dijon. On the Chenôve plateau, the aecia are already showing up!
Frédéric Suffert
Fantastic diversity of shapes of #Puccinia graminis aecia, likely influenced by developmental stage, resistance level of #Berberis vulgaris, inoculum pressure, weather conditions at infection, and formae speciales (around Dijon, France). But can you identify the intruder? 🤔
