Lawn fungus or brown spots — San Francisco, California
Brown, yellow, or dead patches appearing on your lawn — especially circular or ring-shaped patterns — often indicate a fungal disease rather than drought or insect damage. Common lawn fungi include brown patch (Rhizoctonia), dollar spot, fairy ring, and snow mold. Fungal infections typically strike when warm days combine with humid nights and poor air circulation. Over-watering, excessive nitrogen fertilization, and mowing too short all increase vulnerability. Early intervention is critical: a small brown patch can spread across an entire yard within 1–2 weeks under favorable conditions. Professional diagnosis ($50–$150 for a lawn inspection) identifies the specific fungus and treatment — fungicide applications run $100–$300 per treatment, and most lawns need 2–3 applications spaced 14–21 days apart.
Waarom dit veel voorkomt in San Francisco
Tight urban lots, rooftop gardens, and fog-tolerant plantings define SF landscaping, while California drought rules push drought-tolerant and water-efficient designs. Steep hillside lots frequently need retaining-wall and drainage work to manage winter runoff.
Who to call
For this problem in San Francisco, call a: Hovenier
Vind een Hovenier in San FranciscoSymptoms to look for
- Circular or ring-shaped brown or yellow patches expanding over days
- Grass blades with tan lesions or dark borders at the edge of dead areas
- White, pink, or gray cottony fungal growth visible on grass in early morning dew
- Mushrooms appearing in a ring or arc pattern in the lawn
- Dead patches that don't recover after watering, unlike drought stress
Spoeddienst in San Francisco
Emergency home services in San Francisco are available 24/7 at premium rates — expect $150–$300+/hour for after-hours plumbing or electrical, the highest tier in the US. Response times average 45–90 minutes given hilly terrain and parking scarcity. Always verify an active CSLB license and proper DBI permits.