Basil downy mildew remains active. The weather this time of year is ideal for downy mildew development across many crops. Growers should remain diligent going into the fall with regular scouting and preventative fungicide applications.
Continue reading...September 27, 2013 Mark VanGessel
Considerations for Small Grain Weed Control
Mark VanGessel, Extension Weed Specialist; mjv@udel.edu For no-till fields, a non-selective herbicide needs to be used prior to planting. If grasses or perennial weeds are present, glyphosate is a better choice than paraquat. Fields worked with a vertical tillage implement for residue management still need a non-selective herbicide. These implements are not weed control tools. There […]
Continue reading...September 25, 2013 Kris Holmstrom and Joe Ingerson-Mahar
Veg IPM Update: Week Ending 9/25/13
Vegetable IPM Report 9-25-13 – Click to View | Download | Print Current Week’s Pest Maps – Available Maps for the week are highlighted European Corn Borer Map Corn Earworm Blacklight Map Corn Earworm Pheromone Map Brown Marmorated Stinkbug Map Vegetable IPM Pest Map Archive
Continue reading...September 21, 2013 Andy Wyenandt
Late Blight Reported: S.NJ Greenhouse Tomato – 9/21/13
An isolated case of Late blight has been confirmed in Southern New Jersey on a farm that was growing both field-grown and greenhouse-grown tomatoes. The pathogen originated in an old tomato planting that had been unsprayed since the last pick over 6 weeks ago. Left unscouted, the field developed Late blight and the pathogen moved into the greenhouse operation […]
Continue reading...September 20, 2013 Andy Wyenandt
Vegetable Disease Briefs – 9/20/13
Late blight has been reported in tomato on an organic farm near Long Valley in Morris County, New Jersey. The cooler weather along with longer periods of leaf wetness lasting into the morning hours this time of year makes conditions ideal for potential Late blight development. As a reminder, once fields or blocks of tomatoes […]
Continue reading...September 20, 2013 Andy Wyenandt
Vegetable Disease Update – 9/20/13
Carrots – Leaf blights – Powdery mildew, Alternaria and Cercospora. Alternaria and Cercospora are two soil-borne fungal pathogens that may cause early defoliation in carrots reducing yields and making harvest difficult. Both pathogens produce distinct symptoms on carrots.
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