Red Oak Losing Limbs in Summer: Drought Stress, Not Borers

Understanding Summer Limb Failure Your red oak dropping green leaves and solid (non-hollow) limbs during calm conditions is classic summer limb failure—a drought-induced phenomenon, not borer damage or disease. Borers le

Maple Tree Dripping Sticky Sap? It's Likely Slime Flux, Not Aphids

Identifying the Real Culprit Behind the Mess Brown, frothy, sweet-smelling puddles under your maple—without visible aphids—point to slime flux (wetwood), a bacterial heartwood infection. Internal fermentation generates g

Rescuing a Heat-Stressed Laurel Oak Planted in Summer

Why Summer Planting Causes Transplant Shock Planting a 12-foot laurel oak in summer heat is the worst possible timing. The trees root ball dries rapidly as surrounding soil wicks away moisture, while foliage demands exce

Assessing a Hazardous Mature Oak: When Removal Is the Only Safe Option

Understanding the Decay Process in Your Century-Old Oak The rotting, falling branches near the trunk indicate heartwood decay fungi that entered through an old wound—likely decades ago. The fungus has slowly colonized th

Controlling Locust Root Sprouts Without Killing Your Lawn

Why RootX Is the Wrong Tool for the Job RootX is designed for sewer lines—it kills all roots, including your grass. Never use it in landscape settings. Effective Strategies for Locust Sprout Control If the Stump Is Fre

Diagnosing Browning in Newly Planted Cedars: Water, Shade, or Dust?

Why Are Your Cedars Turning Brown in the Center? Concrete dust from a neighbors project is not the cause of interior browning—dust damage appears first on outer, new growth. The real culprits are likely cultural: Common

Selecting Elm and Zelkova Cultivars for Kansas Zone 6a Landscapes

Three Excellent Tree Choices for South Central Kansas All three selections—Emerald Sunshine elm (Ulmus propinqua), Allee elm (Ulmus parvifolia), and Wireless zelkova (Zelkova serrata)—are fully hardy to Zone 5, making th

Hurricane Salt Damage: Will Your Trees Recover?

Understanding Salt Injury After Coastal Storms Hurricane Earls salt-laden winds have turned your trees foliage brown in early September—a classic sign of salt spray damage. The good news: for most deciduous trees, this i

Diagnosing and Managing Slime Flux on Honey Locust Trees

What Is That Dark, Frothy Sap Seeping From Your Tree? The root beer colored, foul-smelling liquid oozing from your honey locusts trunk is classic slime flux (wetwood)—a bacterial infection of the heartwood. Unlike insect

Saving a Mature Spruce After Root Damage During Construction

Assessing Root Cutting Impact on Established Trees When construction severs roots of a 40-year-old spruce, the trees survival depends on the percentage of root system lost. Roots typically extend 1.5 times the branch spr

Oak Leaf Galls: Identifying Those Colorful Bumps on Your Tree

What Causes Yellow and Red Bumps on Oak Leaves? Those small, colorful protrusions on your oaks foliage are leaf galls—abnormal growths triggered by tiny gall wasps (family Cynipidae). While they may resemble fungal infec

Identifying and Managing Cherry Pouch Galls on Your Tree

What Are Those Finger-Like Growths on Cherry Leaves? If youve noticed slender, finger-like projections dangling from your cherry trees leaves—accompanied by curling and drying foliage—youre likely dealing with cherry pou

Newly Planted Sycamores Declining: Water, Mulch & Stake Removal

Richmond, CA: HOA-planted sycamores (June/July last year) look dead—little foliage, yellow-brown leaves. High wind area. Diagnosis Sycamores drought-sensitive; need regular water. Sprinkler 3×/wk, 5 min may not soak roo

Dalbergia sissoo Roots & In-Ground Pool: Remove Tree Immediately

Dalbergia sissoo 10 ft from in-ground pool. Will root shoots penetrate wall? Yes—High Risk Spread 30–40 ft → roots 45–60 ft. Invasive; large surface roots. 10 ft is far too close. Action Remove ASAP. Link: Dave’s Garde

Scrub Oak Bulging Base & Bark Separation: Borer Damage

100+ scrub oaks N. of Sacramento; one has bulging base (18″), bark separating/crumbing. Diagnosis: Borers Bark separation + frass = borer larvae feeding under bark. Treatment Spray trunk with Onyx or Merit (penetrate ba

Topping Spruce for Neighbor’s View: Just Say No

Neighbor wants to top spruce at roof line. Bad idea. Why Topping Destroys Trees Shortens life. Creates weakly attached regrowth (hazard). Disfigured forever. Only works on young spruces (become hedges). Response “Sorry

Large Oak Cavity with Standing Water: Drain & Foam, Don't Cement

Big horizontal oak with huge cavity holding 3–4 gallons nasty water. Drill drain hole? Fill with cement/foam? Modern Arboriculture: Leave Open Cement/foam expands differently than wood → new damage. Tree strength = new

Best Shade Tree Near House & Septic in Mobile, AL: Small & Sturdy

Need fast shade tree near 2-story house, 10–15 ft from septic tank, 30 ft from leach field. Mobile, AL (high rain). No big limbs, good lumber, deciduous. Hates hickory nuts, live oaks, water oaks. Eucalyptus? Septic Real

Transplanting Young Oaks in Mid-September: Wait for Leaf Drop

Two young oaks need moving in mid-September. Is it okay? Better to Wait Wait until native oaks drop leaves (dormancy). If can’t wait, move at first fall color. Post-Move Care Mulch 3″ (not on trunk) — holds moisture. Ch

Twig Girdler on Prize Oak: Sanitation Saves Next Year

Old twin oak dropping twig clusters—twig girdler/pruner. Will it kill tree? How to save? No, It Won’t Kill Insects lay eggs in twigs, girdle them, twigs fall. Larvae overwinter in fallen twigs. Control: Sanitation Gathe