Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu The rain we have had has also been favorable for powdery mildew which is a minor disease of tomato in fields that have not been sprayed. It is more common in backyard gardens and… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Downy mildew on cucumber continues to spread in North Carolina and is now present in Ohio. There was a new report of downy mildew from Virginia Beach, VA this week. Although the winds are… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Bacterial brown spot was identified in pole beans as well as a commercial field of baby limas this week. Brown spot is usually only seen in wet seasons. The reddish-brown bordered irregular spots look… Continue Reading
Gordon Johnson, Extension Ag Agent, Kent Co.; gcjohn@udel.edu One of the most common problems in drip irrigated vegetables with plastic mulch is over-irrigating or under-irrigating. The following are guidelines from the Delaware Commercial Vegetable Production Recommendations guide: “Calculating the length… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Disease Severity Value (DSV) Accumulation as of July 1, 2009 is as follows: Location: Shadybrook Farms, Little Creek, DE in Kent County. Greenrow: May 1 LATE BLIGHT EARLY BLIGHT Date Daily DSV Total DSV… Continue Reading
