- 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.
http://resources.rothamsted.ac...
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.