Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Both barley that is still in the field and wheat that was not sprayed with fungicides are beginning to blacken in the field. The blackening of the heads is caused by several fungi that… Continue Reading
Joanne Whalen, Extension IPM Specialist; jwhalen@udel.edu Alfalfa Continue to sample for potato leafhoppers on a weekly basis. We continue to see both the adult and nymph stage. As indicated before, the nymphs can cause damage very quickly so sample fields… Continue Reading
Kate Everts, Vegetable Pathologist, University of Delaware and University of Maryland; keverts@umd.edu Late blight of tomato is present in fields in Somerset County, Maryland. The disease can be recognized by large grey to brown lesions on the leaves. Associated leaf… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Disease Severity Value (DSV) Accumulation as of June 17, 2009 is as follows: Location: Shadybrook Farms, Little Creek, DE in Kent County. Greenrow: May 1 LATE BLIGHT EARLY BLIGHT Date Daily DSV Total… Continue Reading
Bob Mulrooney, Extension Plant Pathologist; bobmul@udel.edu Downy mildew on cucumbers was found in another field of commercial cucumbers in Columbus County in southeastern NC this week. Downy mildew was also observed for the first time in sentinel plots in SC… Continue Reading
