NEW BRUNSWICK, N.J. — Cucurbit downy mildew was confirmed on cucumber in southern New Jersey (Cumberland County). This is the second report of CDM in New Jersey this growing season.
All cucumber growers in New Jersey are encouraged to add downy mildew specific fungicides to their weekly maintenance spray programs. All growers should scout cucumber plantings as well as all other cucurbit crops for symptoms.
CDM has also been reported on cucumber in Maryland, Delaware and Pennsylvania. To track the progress of cucurbit downy mildew in the US through the CDMpipe website through NCSU please click here.
— Rutgers Cooperative Extension