Effect of spray timing of flusilazole on the incidence and severity of phoma leaf spot (Leptosphaeria maculans and L. biglobosa) on winter oilseed rape

摘要

A field experiment with winter oilseed rape cultivars Courage and Canberra was done in the 2006/2007 growing season to investigate the effect of spray timing of carbendazim +flusilazole on incidence and severity of phoma leaf spot. For both cultivars, early treatments of fungicide (12 October 2006) were shown to be more effective than late treatment (12 November 2006) in decreasing the severity of phoma leaf spot in November and December.