--- title: "Why is my Georgetown lawn dying? A diagnosis guide" description: "Brown patches in a Georgetown lawn are usually watering, bugs, or fungus, and the season tells you which. How to diagnose it before you waste water." canonical: https://georgetownlawnguide.com/guides/why-is-my-lawn-dying-georgetown/ source: https://georgetownlawnguide.com/guides/why-is-my-lawn-dying-georgetown/ --- 1. [Home](https://georgetownlawnguide.com/) 2. [Guides](https://georgetownlawnguide.com/guides/) 3. Why is my Georgetown lawn dying? A diagnosis guide # Why is my Georgetown lawn dying? A diagnosis guide [Reviewed against Texas A&M AgriLife Extension](/about-this-guide/) Last updated June 2026 ![A wide residential lawn turned brown and dried out during drought, with green trees and houses in the background.](/_astro/lawn-problem-patches.CNeqvPrM_kGnty.webp "A wide residential lawn turned brown and dried out during drought, with green trees and houses in the background.") Most Georgetown lawn problems trace back to one of four causes: watering, bugs, fungus, or grass-and-timing mistakes. The season and a quick tug on the grass usually tell you which. Photo: Famartin / Wikimedia Commons — [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) ( [source](https://commons.wikimedia.org/wiki/File:2016-09-18_14_16_18_Callery_Pears_and_a_brown,_dried_up_lawn_during_a_drought_along_Franklin_Farm_Road_in_the_Franklin_Farm_section_of_Oak_Hill,_Fairfax_County,_Virginia.jpg) ) ## Why is my Georgetown lawn dying? Most Georgetown lawn trouble comes down to four causes: how you water, chinch bugs, fungal disease, or grub worms. The fastest way to narrow it is the season plus a tug on the grass. Hot, dry summer points to chinch bugs or drought; cool, wet spring and fall points to fungus; turf that peels up like carpet points to grubs. Work in that order, because watering and mowing fixes solve more brown lawns than any pesticide. [Texas A&M AgriLife Extension — St. Augustinegrass Lawn Management](https://agrilifeextension.tamu.edu/wp-content/uploads/2025/07/St.-Augustinegrass-Lawn-Management.pdf) The expensive mistake is jumping straight to a product. People see brown grass, assume it is dry, and water more, which is exactly wrong if the real cause is chinch bugs or fungus. This guide routes you to the right answer based on what you are actually seeing, and each cause has its own detailed guide linked below. Georgetown lawn problems by symptom and season What you see When Likely cause Go to Even, uniform blue-gray wilt; recovers when watered Hot, dry stretches Drought / watering Watering guide Irregular yellow-to-brown patches spreading in full sun Hot, dry mid-summer Chinch bugs Chinch bug guide Circular rings, yellow-to-orange border; shoots pull from sheath Cool, wet spring and fall Brown patch (large patch) Brown patch and take-all guide Irregular thinning; runners lift; roots black and rotted Spring into early summer Take-all root rot Brown patch and take-all guide Turf peels up like carpet; animals digging at night Summer into fall Grub worms Grub worms guide Whole lawn pale or slow to green up Spring, or year-round Grass type, soil pH, or feeding timing Grass types + seasonal calendar The reflex to unlearn: more water Yellowing grass does not automatically need more water. Chinch bug damage and fungal disease both mimic drought, and both get worse with extra irrigation. On Georgetown’s slow-draining clay, overwatering also drives root rot and runs straight off into the street. Diagnose first, then act. ## Start here: is it how you water or mow? Before pests or disease, rule out the basics, because they cause most brown lawns. Georgetown sits on slow-draining clay with a two-day-per-week watering schedule, so both overwatering and shallow watering are common. Water deeply in the early-morning window with a cycle-and-soak approach, mow St. Augustine at 2 to 4 inches with a sharp blade, and never remove more than a third of the blade at once. [City of Georgetown Water Utility](https://georgetowntexas.gov/utilities/water/) A lawn watered at the wrong time or scalped too short browns out and looks diseased when it is really just stressed. Get the fundamentals right first: the [Georgetown watering guide](/watering-georgetown-tx/) covers the cycle-and-soak schedule by address, and the [seasonal lawn calendar](/seasonal-lawn-calendar-georgetown/) covers when to fertilize, aerate, and apply pre-emergent so you are not stressing the lawn at the wrong time of year. ## Brown patches in the heat of summer? In hot, dry mid-summer, irregular patches that spread in full sun are usually chinch bugs or drought. The two look identical, so confirm before watering more. If a tug shows roots intact, do the coffee-can float test for chinch bugs. If the turf peels up like carpet with the roots gone, it is grubs instead, and you may see skunks or armadillos digging at night. [Texas A&M AgriLife Extension — St. Augustinegrass Lawn Management](https://agrilifeextension.tamu.edu/wp-content/uploads/2025/07/St.-Augustinegrass-Lawn-Management.pdf) Summer is bug season. Start with the [chinch bug guide](/guides/chinch-bugs-georgetown/) for the coffee-can test and treatment, and if the turf is lifting off the soil, switch to the [grub worms guide](/guides/grub-worms-georgetown/) for the dig test and the June-to-July treatment window. ## Circular or irregular patches in spring or fall? Patches that appear in the cool, wet shoulders of spring and fall are almost always fungal. Brown patch (large patch) makes roughly circular rings with a yellow-to-orange border, and diseased shoots pull easily from the leaf sheath. Take-all root rot rots the roots so whole runners lift off the soil, and it thrives in the alkaline clay common across Georgetown. [Texas A&M AgriLife Extension — Take-All Root Rot](https://agrilifeextension.tamu.edu/asset-external/take-all-root-rot/) Fungus is a spring and fall problem, driven by leaf wetness and Georgetown’s heavy clay. The [brown patch and take-all guide](/guides/brown-patch-take-all-georgetown/) walks through telling the two apart with the pull test and explains why local soil pH makes take-all so common here, plus the cultural fixes that actually work. ## Whole lawn pale or slow to green up? If the whole lawn looks pale rather than patchy, the cause is usually the grass type, the soil, or the timing of care rather than a pest. Central Texas soils are often alkaline above pH 7, which locks up granular iron and leaves the lawn yellow despite feeding. A lawn slow to green up in spring may just be waiting on soil temperature and frost dates, not failing. [Texas A&M AgriLife Extension — St. Augustinegrass Lawn Management](https://agrilifeextension.tamu.edu/wp-content/uploads/2025/07/St.-Augustinegrass-Lawn-Management.pdf) Match the care to the grass and the calendar. The [grass types guide](/guides/grass-types-georgetown/) explains how to identify what you have and why iron behaves the way it does in alkaline soil, and the [seasonal calendar](/seasonal-lawn-calendar-georgetown/) sets the right windows so you feed and treat when the lawn can actually use it. Still stuck? An operator who treats lawns, not just mows them, can put eyes on it. ## Worked through it and still not sure? When the season and the pull test still do not settle it, get a second set of eyes. The four big causes overlap visually, and treating the wrong one wastes water and money, so a Georgetown operator who diagnoses and treats lawns, not just mows them, can confirm what is actually happening and fix it. Start with watering if you have not already, since it solves more brown lawns than anything else. [City of Georgetown Water Utility](https://georgetowntexas.gov/utilities/water/) Diagnosis is the hard part; the fix is usually straightforward once you know the cause. [Get free quotes from a Georgetown operator](/operators/) who diagnoses and treats lawns, or if you have not ruled out the basics yet, start with the [Georgetown watering guide](/watering-georgetown-tx/) first. ## Why trust this guide Care guidance on this site cites Texas A&M AgriLife Extension. We are an independent guide, not a lawn-care operator, and we connect you with vetted local operators who do the work.