Why Some St. Louis Trees Suddenly Drop Large Limbs Even When They Look Healthy
Tree Safety

Why Some St. Louis Trees Suddenly Drop Large Limbs Even When They Look Healthy

A tree can have green leaves and a full canopy while still containing hidden structural weaknesses. Internal decay, weak branch unions, cracks, root damage, old storm injuries, or excessive limb weight may cause a major branch to fail. Foliage shows that part of the tree is still moving water and producing energy. It does not […]

Continue reading from Why Some St. Louis Trees Suddenly Drop Large Limbs Even When They Look Healthy

What an Arborist Looks for When a Tree Is Leaning but Hasn’t Fallen
Tree Risk Evaluation

What an Arborist Looks for When a Tree Is Leaning but Hasn’t Fallen

An arborist does not judge a leaning tree by its appearance or trunk angle alone. We consider whether the lean is new or increasing, the condition of the roots and soil, trunk integrity, canopy balance, recent property changes, and what the tree could strike. Some trees grow at an angle for decades and develop enough […]

Continue reading from What an Arborist Looks for When a Tree Is Leaning but Hasn’t Fallen

Emerald Ash Borer in St. Louis, MO: When to Treat or Remove Ash Trees
Tree Diseases, Tree Health

Emerald Ash Borer in St. Louis, MO: When to Treat or Remove Ash Trees

Key Takeaways Emerald ash borer (EAB) has killed the vast majority of untreated ash trees across the greater St. Louis region since it was first confirmed in Missouri, and infested trees that go untreated typically die within two to four years. Early-stage infestations, generally those affecting less than 30 to 50 percent of the canopy, […]

Continue reading from Emerald Ash Borer in St. Louis, MO: When to Treat or Remove Ash Trees