Yellowing Up. Help! - Knowledgebase Question

Dallas, Te
Question by rhernandez_1
September 23, 2009
My yard has St. Augustine grass and there are portions that are starting to yellow and thin out. Started out a small spot and then spread. Why is that and what can I do to fix? We recently had heavy rain for about 2 weeks straight. Not sure if the yellowing started before or after.

Answer from NGA
September 23, 2009


Yellowing turf can indicate an insect problem (chinch bugs, grubs), or a need for fertilizer or even a need for iron. I can't really diagnose the problem without seeing it. Here's a website from Texas A & M with photos of St. Augustine infested with chinch bugs.

Check out the photos to see if they match. If not, here's another helpful publication:

Hope these help you determine the cause of the yellowing in your lawn.

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