They're the tiny, fuzzy yellow or brown balls on oak leaves and ... of galls around oak trees across Houston. That's not ...

killing millions of oak trees across 76 Texas counties. It’s a fungal disease that interrupts their vascular system, preventing water from traveling from the roots to the leaves and eventually ...

Shannon Medical Center's Dr. Chris Christodoulou said March's peaking tree pollen levels could negatively impact people with seasonal allergies.