How do weather and climate impact boxwood blight? A modeling approach to aiding in boxwood disease management

Dr. Len Coop • September 15, 2022

Presented by Len Coop - Associate Professor @Oregon Integrated Pest Management Center, Oregon State University, Corvallis, Oregon (USA)


Boxwood blight is a fungal disease that can decimate boxwood plantings in most all settings and environments. The degree of injury can vary widely, depending on cultivar susceptibility, local disease severity, and weather, from nearly symptom-free to total destruction and death of boxwood plants. Dr. Len Coop will present how weather and climate affect both where the disease is of most concern, and when conditions may be most favorable for disease build-up. A demonstration of online tools will be given so that boxwood managers can apply these principles towards reducing and controlling this disease. Now boxwood blight model predictions can be delivered according to a subscriber's settings in their email in-box, making management decisions easier and less time consuming.

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By Dr. Jerry Weiland January 30, 2026
Learn how your nursery production practices can impact boxwood blight risk and your potential for outbreaks. Whether you’re currently dealing with this disease or working to prevent it, understanding key risk factors is essential for protecting your entire boxwood inventory. Join plant disease expert Jerry Weiland as he examines real-world case studies demonstrating how boxwood blight enters nurseries and spreads via common production activities. This webinar will cover critical factors that influence disease development and spread, including plant size and spacing, cultivar selection, environmental conditions (temperature and moisture), and fungicides. You’ll leave with practical management recommendations and actionable strategies for preventing and controlling boxwood blight in your operation.
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