Watermelon downy mildew reported in North Carolina | North Carolina Cooperative Extension

Downy mildew, caused by the oomycete Pseudoperonospora cubensis, has been reported in watermelon in North Carolina. It was observed in Nash county (June 17, 2016) and the field presented 5% incidence with each infected plant/leaf having 50% severity. A recent report from Johnston county (June 23, 2016) was from a watermelon field with 5% incidence and 30% severity. A previous report earlier this month (June 1st, 2016) was on cucumber in Duplin county.

Source: Watermelon downy mildew reported in North Carolina | North Carolina Cooperative Extension