Leaves look pale or yellow: Often nutrient availability issues, irrigation imbalance, or soil-related stress (not always “needs more fertilizer”). Over-fertilizing can create other problems, so targeted feeding is typically smarter than blanket applications.
Sticky residue on cars/patios (honeydew): Frequently caused by sap-feeding insects like aphids or some scale species—sometimes accompanied by black “sooty mold” growing on the sticky film.
Bumps on twigs or white “shells” on leaves: Can indicate scale insects. These pests are protected by waxy coverings, which is why timing and product choice matter.
Thinning canopy, dead tips, branch dieback: Usually multi-factor: drought stress, compacted soil, previous insect pressure, or disease. A professional assessment helps prioritize the most fixable items first (water pattern, root health, and targeted control).