Sclerotinia stem rot is a fungal disease of canola, that can cause significant yield losses exceeding 20% under conducive conditions. Initially only common in parts of the Geraldton port zone, it
Spot form net blotch (SFNB) has become increasingly more common due to the widespread cultivation of susceptible varieties, such as La Trobe, RGT Planet and Spartacus CL.
For successful management of sclerotinia stem rot in most years it is critical to target fungicides at early stage of bloom (20-30%), but optimal timing can vary depending on the season, in particu
Previous research in high rainfall zones or above average seasons has shown that in cases where leaf spot disease levels are high very early, fungicide application at or before first node (Z31) is
