There have been numerous reports of corn smut throughout the state of New Jersey the past few weeks. Corn smut (also called common smut), caused by Ustilago maydis, is found infecting corn throughout most of the world. In most years, corn smut is reported in New Jersey , but reports are limited to just a […]
Continue reading...Box tree moth confirmed in MD, VA, and expanded quarantines in MI, OH. Plus+ IPM webinar recordings and 8/12 session
Box tree moth has been detected in MD and VA. Additionally quarantines have been expanded (7/21/25) in counties of Michigan and Ohio: Click here for: APHIS Expands Box Tree Moth (Cydalima perspectalis) Quarantines in Michigan and Ohio (July 2025) Click here for: Maryland BTM confirmed in Washington Co., MD. Click here for: Virginia BTM confirmed […]
Continue reading...July 26, 2025 Andy Wyenandt
Diagnosing pith necrosis in tomato
Symptoms usually begin to appear on random plants throughout the field as green fruit begins to mature. The bacterium (Pseudomonas corrugata) is ubiquitous to soils and develops when weather conditions (cooler nights/very hot, humid days) and cultural practices (i.e., excess heavy N use) lead to favorable conditions for disease development. Symptoms include the development of […]
Continue reading...July 26, 2025 Andy Wyenandt
Diagnosing Important Diseases In Tomato – Reference Guide
The following images consist of important diseases in tomato. These images can be used as a quick reference for diagnosing important fungal and bacterial pathogens. For best results, please turn your device (i.e., cell phone) sideways. For information on commercial control recommendations, please visit the tomato section of the 2022/2023 Mid-Atlantic Commercial Vegetable Production Guide. […]
Continue reading...July 25, 2025 Amanda Quadrel and Maria Cramer
Veg IPM Update 7/25/25
Greetings from the Veg IPM team! Sweet Corn Corn earworm moth captures are increasing, leading to 3- or 4-day spray intervals being needed throughout the state. When temperatures are high (>85 degrees F), shorten the spray interval by one day. Rotation is important for avoiding resistance, and there are four IRAC groups that are registered […]
Continue reading...July 25, 2025 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. […]
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