Pest Scouting – Please refer to these documents for a full listing of insects pests for your area corresponding to growing degree-days (GDDs). Nursery and Landscape Pest Scouting Guide 2022 PDF (note this contains conifer pests as well) Conifer Pest Scouting Guide 2022 PDF Quick look guides for July (Borers and Scales) and (All other) Quick […]
Continue reading...July 14, 2022 Tim Waller
July Pest Scouting Nursery, Landscape, and Christmas Trees – Key borer and scale insect control timings
July 14, 2022 Andy Wyenandt
Diagnosing important diseases in Pepper – Reference Guide
Phytophthora blight causing plants to wilt and die Phytophthora blight – crown rot Phytophthora crown rot. Note the blackish-brown necrotic tissue at base of the stem Phytophthora sporulating on infected bell pepper fruit. Phytophthora fruit rot (L) and Pythium blight (R) Symptoms of Phytophthora blight on infected leaves. Under ideal conditions leaf infections can occur. […]
Continue reading...July 13, 2022 Kris Holmstrom and Joe Ingerson-Mahar
Vegetable IPM Update 07/13/22
Sweet Corn European corn borer (ECB) moth catches continue to be extremely low around the state. We are in between adult generations at this time. ECB population maps will resume if second flight catches rise to high enough numbers. The highest nightly trap catches of ECB for the week ending 07/13/22 are as follows: Hillsborough […]
Continue reading...July 13, 2022 Andy Wyenandt
Collar Rot and Alternaria Stem Rot of Tomato
Collar rot (Alternaria linariae) or Alternaria stem rot (Alternaria alternata f. sp. lycopersici) of tomato are common in young tomato plants. Either can be particularly troublesome in seedlings that have been held in transplant flats for an extended period of time before transplanting in hot, humid greenhouses. Collar rot infections often start where a leaflet branch has been […]
Continue reading...July 12, 2022 Andy Wyenandt
Diagnosing leaf diseases in sweet (and field) corn in the mid-Atlantic region
Dr. Alyssa Koehler, Field Crops Pathologist from the University of Delaware, recently posted a great diagnostic guide for important fungal leaf diseases in corn. Click here for more information. If you want to follow what is going on in Delaware you can sign up for their Weekly Crop Update by clicking here.
Continue reading...July 11, 2022 Andy Wyenandt
Vegetable Disease Update: 07-11-22
White mold has been reported in tomato and Southern blight in pepper in southern new Jersey this past week. Click here for more information. Early blight is being reported in tomato. Rhizoctonia root rot has been reported in summer squash. Click here for more information. Powdery mildew has been reported in cucurbit crops. For more […]
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