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January 7, 2026
When winter’s chill arrives in Napa Valley, many homeowners think trees go dormant and are safe from disease — but that’s not always true. Some tree diseases thrive in cooler weather or become more obvious when leaves are gone and structure is exposed. Understanding common winter tree diseases helps you protect your landscape before costly damage happens. At Mike’s Tree Service, we help homeowners identify, prevent, and manage winter tree diseases so trees stay healthy year-round.
Your Local Tree Experts—Here When You Need Us
From storm damage to seasonal trimming, trusted tree care is just a click away. With decades of experience serving Napa, CA, we’re here to keep your landscape safe, healthy, and looking great—year-round. Reach out anytime for expert support.





