Pattern check
Bare and thinning areas
Look at traffic, shade, soil condition, establishment failure, and whether living crowns or runners remain before filling the area.
Lawn problems
Treat the cause—not the color brown.
Brown, yellow, bare, and thin turf are symptoms. Start with the pattern and site history, then narrow the cause before you repair or apply a treatment.
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Complete topic cluster
Dog urine spots
Compare urine damage with disease, identify living versus dead turf, repair by grass type, and prevent repeat damage.
Open the dog urine hub →Water check
Dry or irregular brown patches
Compare irrigation coverage, rainfall, slope, soil drying, and the boundary of the symptom before assuming disease.
Plant check
Possible disease or insects
Inspect individual leaves, roots, crowns, spread pattern, and seasonal conditions; use local extension diagnosis when the signs overlap.
Input check
Fertilizer or chemical injury
Consider application shape, overlap, spills, recent products, and whether damage follows equipment or treatment paths.
Site check
Compaction, drainage, and traffic
A lawn can keep failing where the site problem remains. Read puddling, hard soil, paths, pet routes, and wear before repairing turf.
When the answer is not clear
Local diagnosis beats a confident guess.
Photograph the whole pattern and close leaf symptoms, note recent weather and lawn inputs, and contact your county cooperative-extension office before applying a pesticide or rebuilding a large area.
Use the diagnosis path →