John P. Clarkson

Efficacy of a Calcium Functional Fertiliser with a Calcium Transport Stimulant in Managing Cavity Spot of Carrot (Daucus carota subsp. sativus)

The marketable yield of carrot is reduced by carrot cavity spot disease (Pythium violae and P. sulcatum). In the UK, metalaxyl-M is the only approved fungicide. Good calcium nutrition can manage cavity spot, but calcium is not generally mobilised to the maturing carrot root. We r...