Guide
Lawn fungus: prevention and control basics
Brown patch, dollar spot patterns, cultural fixes, and fungicide timing.
Most lawn fungus issues are moisture + temperature + susceptible grass + inoculum interacting. Cultural control (watering time, airflow, dew, height of cut, soil compaction) often comes before or alongside fungicides.
Prevention first
- Water deep and early; avoid unnecessary evening films on leaf blades.
- Mow tall enough for species and season—short scalped turf stresses faster.
- Reduce compaction where water won’t infiltrate (aeration when turf can recover).
When fungicides matter
Labels specify timing, rates, re-application intervals, and grass safety. Rotate modes of action where resistance is a concern; don’t rely on curative sprays alone if moisture problems remain.
In the app
Mark disease in check-ins when you see patterns—your roadmap can emphasize airflow and fungicide-category tasks when obvious signs are flagged.