Tree Care in Illinois
TreeCareAdvisors covers 57 communities across Illinois with localized tree care data, species guides, pest alerts, and cost estimates.
Common Trees in Illinois
Bur Oak
Toughest native oak - drought, cold, and wind tolerant. Massive specimens
Sugar Maple
Fall color champion, syrup production, but salt-sensitive along roads
White Birch (Paper Birch)
Iconic white bark, short-lived (40-50 years), bronze birch borer vulnerable
Eastern White Pine
Tall, fast-growing, soft needles - blister rust susceptible
Basswood (American Linden)
Excellent shade, fragrant flowers, attracts pollinators
Active Tree Threats in Illinois
Emerald Ash Borer (EAB) critical
Affects: All ash species (Fraxinus) - green, white, black, blue ash
Metallic green beetle native to Asia. Larvae feed under bark, cutting off water and nutrient transport. Tree dies within 2-5 years of infestation. Has killed hundreds of millions of ash trees in North...
Spotted Lanternfly high
Affects: Tree of Heaven (primary host), but feeds on 70+ species including maples, oaks, walnut, willow, birch, grape
Showy planthopper from Asia. Feeds on sap, excretes honeydew that promotes sooty mold. Doesn't usually kill trees directly but weakens them and creates a mess. Major agricultural pest on grapes and or...
Oak Wilt high
Affects: Red oak group (red, pin, scarlet, black - usually fatal). White oak group (white, bur, swamp white - slower, sometimes survivable).
Fungal disease (Ceratocystis fagacearum) that clogs water-conducting vessels. Red oaks can die within weeks. Spreads through connected root systems between nearby oaks and via beetles attracted to fre...
When to Prune in Illinois
Late winter (February-March). Oaks: November-March ONLY (oak wilt restriction)
Tree Service Tools
Tree Risk Quiz
Is your tree dangerous? Take the 5-question assessment.
Cost Calculator
Get an instant tree removal cost estimate for your area.
Species Guides
Care guides for 134 tree species with photos and maps.