Lawn Pests & Fungus

Colorado's lawns face a unique set of challenges due to the state's semi-arid climate, high altitude, and variable weather conditions.

LAWN PESTS

Colorado lawns contend with a range of pest and fungal issues that are closely tied to the region’s climate, soil conditions, and irrigation practices. High altitude sun exposure, compacted or alkaline soils, and periods of both drought and sudden moisture create stress that weakens turfgrass over time. When lawns are under stress, they become far more susceptible to insects and disease, often showing symptoms that develop gradually before turning into widespread thinning or dead patches.

Common lawn pests in Colorado include white grubs, billbugs, sod webworms, and chinch bugs. White grubs feed on grass roots, causing turf to lift easily from the soil and brown out despite regular watering. Billbugs and sod webworms damage grass stems and crowns, leading to irregular dead spots that are often mistaken for drought stress. Chinch bugs tend to thrive in hot, dry conditions, sucking moisture from grass blades and accelerating decline during the peak of summer.

Lawn Pests

LAWN FUNGUS

Fungal diseases are frequently linked to excess moisture, poor drainage, or improper watering schedules. Conditions such as necrotic ring spot, fairy ring, dollar spot, and leaf spot are common in Colorado lawns, particularly during warm days followed by cool nights. Many of these fungi persist in the soil for years, flaring up when environmental conditions are favorable. Symptoms can range from circular patches and thinning turf to straw-colored rings and greasy-looking lesions on grass blades.

Long-term lawn health depends on addressing the underlying causes rather than reacting to surface symptoms alone. Proper mowing height, deep and infrequent watering, core aeration, and balanced fertilization all play a role in strengthening turf and reducing vulnerability. When pests or fungal issues are identified early, targeted treatments combined with improved cultural practices can restore turf density, improve root health, and help Colorado lawns remain resilient through seasonal extremes.

Lawn Fungus