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Spring Leaf Diseases in Northern VA- What Every Property Owner Should Know

  • holly4704
  • Apr 16
  • 2 min read
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Spring in Northern Virginia brings fresh foliage, blooming trees—and unfortunately, the rise of common tree leaf diseases. From Anthracnose to Apple Scab, these fungal infections can defoliate and weaken your trees if not addressed early. At Potomac Tree and Shrub, we’re committed to preserving the health of your urban forest with expert diagnosis, treatment, and preventative care. Learn how to spot early signs of infection, why proper spring fertilization matters, and when to call in a Certified Arborist. Protect your landscape investment this season with our comprehensive guide to spring leaf disease management.


Read on to identify symptoms, take action, and keep your trees thriving this spring.


Common Spring Leaf Diseases in Northern Virginia


Northern Virginia’s temperate climate is the perfect environment for several fungal leaf diseases that emerge in spring. Here are a few of the most common:


1. Anthracnose


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This disease affects oak, ash, maple, and dogwood trees. It causes irregular brown spots, leaf curling, and early leaf drop. Anthracnose thrives in cool, wet spring weather.

Learn more from Penn State Extension


2. Apple Scab


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Affects crabapples and apple trees. Look for olive-green to black spots on leaves and fruit. If untreated, trees can become defoliated by early summer.

More info from University of Minnesota Extension


3. Leaf Spot (Cercospora, Septoria, etc.)


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Many shade trees and ornamentals are vulnerable to different leaf spot fungi. Symptoms include dark, circular spots and yellowing leaves.


4. Powdery Mildew


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This common disease affects dogwoods and crepe myrtles, coating leaves in a white or gray powdery growth, especially in shady areas.


Early Detection: Signs to Watch for This Spring


  • Discolored or spotted leaves

  • Early leaf drop

  • White, powdery coating on leaves

  • Leaf distortion or curling

  • Sparse canopy by early summer


If you see these symptoms, early intervention is key. Potomac Tree’s Certified Arborists can diagnose the issue and create a treatment plan tailored to your trees.


Why Spring Treatment Matters


Spring is the best time to address fungal leaf issues before they worsen. Preventative fungicide sprays and proper tree fertilization can significantly reduce disease impact and improve overall health.


We recommend deep root fertilization to strengthen your trees' natural defenses. Learn more about our tree fertilization services.


When to Call a Certified Arborist


Some homeowners may attempt to manage leaf diseases on their own, but a professional inspection ensures proper diagnosis and treatment. Our team at Potomac Tree uses ISA-certified methods to assess, treat, and prevent tree diseases across Northern Virginia.


Act Now Before Damage Spreads


Don’t wait until your trees are thinning, dropping leaves early, or showing signs of stress. Schedule your spring tree health assessment today with Potomac Tree and Shrub. Our team will inspect, diagnose, and recommend the best treatment plan to protect your trees from seasonal threats—before the damage becomes costly.


Call us at 571.354.1153 or book your consultation online to get started.


Healthy trees are strong trees—and spring is the best time to act.



 
 
 

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