For issues with South Texas Lawns, I always recommend submitting a sample to the Texas Plant Disease Diagnostic Lab (https://plantclinic.tamu.edu/). Analysis often reveals multiple issues, including lesser-known fungal pathogens and pests. Proper diagnosis is very important to treat the issue effectively.

Submit sample Texas Plant Disease Diagnostic Lab

• D-1178 Plant Disease Diagnostic Form

Common Lawn Issue Publications

• How to Diagnose and Manage Large Patch Disease
• Take All Root Rot
• Warm Season Turfgrass – Urban Landscapes
• White Grubs in Texas Turfgrass

More Helpful Links and Publications

• Aggie Turf Publications
• The Weed, Insect, and Disease Control in Turfgrass guide
• Turf Grass Cultivation