- Phoma leaf spot Jon West
New Phoma Forecast
There is a new forecast for Phoma leaf spot timing on oilseed rape which can be viewed below.
This information is critical at this time of year for deciding an autumn fungicide spraying regime. More information on this disease can be found here: Phoma stem canker of oilseed rape
This forecast has been produced with data and input from Croprotect and Rothamsted expert Jon West.