I have received four new reports of late blight in Maryland in the last two days. These outbreaks include a two acre planting of tomatoes in St. Mary’s county, a potato field on the eastern shore, a 15 acre field of tomatoes near Crisfield in Somerset County, and a small tomato planting in Garrett County near the location where late blight was confirmed last month. The genotype of the pathogen isolates involved in these new reports are being determined. All tomato and potato plantings are at risk for late blight in Maryland and Delaware. Growers should consult the Commercial Vegetable Recommendation Guide and apply appropriate targeted fungicides (http://extension.udel.edu/ag/vegetable-fruit-resources/commercial-vegetable-production-recommendations/).
