Cerna Landscape | Emergency Landscapers in Renton, WA

This is a very common question for Renton homeowners. Brown patches can be caused by both. We start with a thorough inspection to check for sprinkler head damage or misalignment that creates dry spots. If irrigation is fine, we'll look for signs of common local lawn diseases like red thread or dollar spot. Proper diagnosis is key to applying the right treatment, whether it's a repair or a targeted fungicide application.

Sloped yards in our area often lead to runoff and poor water penetration. Our approach includes adjusting sprinkler run times to shorter, more frequent cycles (cycle and soak) to prevent waste, and we may recommend switching to rotary nozzles or drip irrigation for sloped beds to ensure water reaches the roots efficiently. A professional audit can identify the specific zones that need adjustment.

Prevention focuses on cultural practices suited to our weather. We recommend proper mowing height (not too short), core aeration to reduce thatch and improve air circulation, and careful morning watering schedules so grass blades dry during the day. A balanced, seasonal fertilization program from Cerna Landscape strengthens your lawn's natural defenses against the diseases common in our region.