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Tree Pests & Diseases

Colorado trees face a unique mix of pests and diseases driven by the state's dry climate, high elevation, temperature swings, and periodic drought stress. Insects such as bark beetles, emerald ash borer, aphids, and spider mites often target trees that are already weakened by lack of water or compacted soils, while fungal diseases like cytospora canker, fire blight, and various needle casts take advantage of environmental stress and poor growing conditions.

Shrub Pests & Diseases

Colorado's shrubs face a unique set of pest and disease pressures shaped by the state's high elevation, intense sun, alkaline soils, and wide temperature swings. Stress from drought, winter desiccation, and late spring freezes often weakens shrubs, making them more vulnerable to insects and pathogens that might otherwise be secondary concerns. Many issues don't appear overnight; they build over seasons, gradually reducing vigor, thinning foliage, and increasing susceptibility to more serious decline.

Lawn Pests & Fungus

Colorado lawns contend with a range of pests and diseases influenced by the state's dry climate, alkaline soils, intense sun, and dramatic temperature shifts. Insects such as white grubs, billbugs, sod webworms, and chinch bugs can damage turf by feeding on roots or blades, often becoming most active when lawns are stressed by drought or improper watering. Lawn diseases — including necrotic ring spot, dollar spot, brown patch, and snow mold — are frequently tied to moisture imbalance, compacted soils, and poor airflow.