{"id":120584,"date":"2025-02-28T15:36:41","date_gmt":"2025-02-28T18:36:41","guid":{"rendered":"https:\/\/www.lawnstarter.com\/blog\/?p=120584"},"modified":"2026-02-18T09:03:32","modified_gmt":"2026-02-18T12:03:32","slug":"signs-lawn-has-grubs","status":"publish","type":"post","link":"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/","title":{"rendered":"How to Tell If You Have Grubs in Your Lawn: 6 Warning Signs"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Unidentified lawn damage is unsettling, but lawn grubs are a common pest that\u2019s easy to identify: Brown patches, peeling grass, and birds digging in your yard are telltale signs of lawn grubs.&nbsp;<\/p>    <p class=\"wp-block-paragraph\">You can confirm them by digging up a 1-square-foot section of turf. Finding 10 or more white, C-shaped larvae usually means you have an infestation.<\/p>    <p class=\"wp-block-paragraph\">This guide shows you how to identify grub damage, confirm an infestation, and distinguish grubs from similar-looking lawn problems.<\/p>    <p class=\"wp-block-paragraph\"><strong>Think you have grubs?<\/strong> LawnStarter connects you with <a href=\"https:\/\/signup-web.lawnstarter.com\/cart\/contact-info?intent=fertilization\">local lawn treatment professionals<\/a> who can confirm the diagnosis and treat infestations fast. Get a free quote in seconds.<\/p>    <figure class=\"wp-block-table is-style-stripes has-medium-font-size\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Key Takeaways<\/strong><\/th><\/tr><\/thead><tbody><tr><td>\u2022 Grass that peels away like carpet means grubs have eaten the roots.<br>\u2022 Birds, raccoons, or skunks digging in your yard indicate a grub infestation.<br>\u2022 Dig up 1 square foot of turf to confirm: 10+ grubs means you need treatment.<\/td><\/tr><\/tbody><\/table><\/figure>   <div class=\"wp-block-ub-table-of-contents-block ub_table-of-contents\" id=\"ub_table-of-contents-d697f7dd-7269-42b9-aebb-1b422865b181\" data-linktodivider=\"false\" data-showtext=\"show\" data-hidetext=\"hide\" data-scrolltype=\"auto\" data-enablesmoothscroll=\"false\" data-initiallyhideonmobile=\"false\" data-initiallyshow=\"true\"><div class=\"ub_table-of-contents-header-container\" style=\"\"> \t\t\t<div class=\"ub_table-of-contents-header\" style=\"text-align: left; \"> \t\t\t\t<div class=\"ub_table-of-contents-title\" style=\"\">6 Tell-Tale Signs of Lawn Grubs:<\/div> \t\t\t\t \t\t\t<\/div> \t\t<\/div><div class=\"ub_table-of-contents-extra-container\" style=\"\"> \t\t\t<div class=\"ub_table-of-contents-container ub_table-of-contents-1-column\"> \t\t\t\t<ul style=\"\"><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#0-1-brown-or-yellow-patches\" style=\"\">1. Brown or Yellow Patches<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#1-2-grass-that-peels-back-like-a-loose-rug\" style=\"\">2. Grass That Peels Back Like a Loose Rug<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#2-3-increased-bird-and-animal-activity-in-your-yard\" style=\"\">3. Increased Bird and Animal Activity in Your Yard<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#3-4-dead-grass-in-irregular-patches\" style=\"\">4. Dead Grass in Irregular Patches<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#4-5-damage-timing-late-summer-to-fall-or-early-spring\" style=\"\">5. Damage Timing: Late Summer to Fall OR Early Spring<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#5-6-10-or-more-grubs-per-square-foot\" style=\"\">6. 10 or More Grubs Per Square Foot<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#6-how-to-tell-grubs-apart-from-other-lawn-problems\" style=\"\">How to Tell Grubs Apart from Other Lawn Problems<\/a><\/li><li style=\"\"><a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#10-faq\" style=\"\">FAQ<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>   <p class=\"wp-block-paragraph\"><strong>What are grubs?<\/strong> Grubs are the larval stage of beetles like Japanese beetles and June bugs. They live underground and feed exclusively on grass roots. While most lawns have a few grubs, the damage depends on the numbers, so catching them early is key.<\/p>    <h2 class=\"wp-block-heading\" id=\"0-1-brown-or-yellow-patches\">1. Brown or Yellow Patches<\/h2>    <figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"565\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/11\/AdobeStock_259493325.jpeg?wsr\" alt=\"patchy yellow grass\" class=\"wp-image-123254\" srcset=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/11\/AdobeStock_259493325.jpeg 800w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/11\/AdobeStock_259493325-300x212.jpeg 300w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/11\/AdobeStock_259493325-656x463.jpeg 656w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/11\/AdobeStock_259493325-150x106.jpeg 150w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/11\/AdobeStock_259493325-768x542.jpeg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Patchy yellow grass. Photo Credit: <a href=\"https:\/\/stock.adobe.com\/images\/grass-texture-grass-background-patchy-grass-lawn-in-bad-condition-and-need-maintaining-pests-and-disease-cause-amount-of-damage-to-green-lawns-lawn-in-bad-condition-and-need-maintaining\/259493325\" target=\"_blank\" rel=\"noreferrer noopener\">singjai<\/a> \/ Adobe Stock Free \/ <a href=\"https:\/\/stock.adobe.com\/license-terms\" target=\"_blank\" rel=\"noreferrer noopener\">License<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">The earliest warning sign is grass that turns gray-green, yellow, or brown in irregular patches. These discolored areas appear even when you&#8217;re watering regularly.<\/p>    <p class=\"wp-block-paragraph\"><strong>Why it happens:<\/strong> Grubs chew through grass roots, causing your lawn to lose its ability to absorb water and nutrients. The grass wilts and discolors from the roots up.<\/p>    <p class=\"wp-block-paragraph\"><strong>Key differences from drought damage:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li>Appears in irregular patches, not uniformly across your lawn<\/li>    <li>Doesn&#8217;t improve after deep watering<\/li>    <li>Grass feels spongy when you walk on it<\/li>    <li>Pulling the grass reveals damaged or missing roots<\/li> <\/ul>    <h2 class=\"wp-block-heading\" id=\"1-2-grass-that-peels-back-like-a-loose-rug\">2. Grass That Peels Back Like a Loose Rug<\/h2>    <p class=\"wp-block-paragraph\">According to <a href=\"https:\/\/agnr.umd.edu\/about\/directory\/ginny-rosenkranz\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ginny Rosenkranz<\/a>, principal agent associate at the University of Maryland Extension, &#8220;Sometimes pests will infiltrate the lawn, reducing (severing) the roots that help fuel blades of grass.\u201d<\/p>    <p class=\"wp-block-paragraph\">Without roots anchoring the turf, the grass becomes completely detached from the soil. So, as Rosenkranz says, \u201cIf the lawn appears to be \u2018patchy\u2019 or it is easy to pull up out of the ground, more investigation is needed.\u201d<\/p>    <p class=\"wp-block-paragraph\"><strong>Quick diagnostic test:<\/strong><\/p>    <ol class=\"wp-block-list\"> <li>Walk to a brown or thinning area.<\/li>    <li>Grab a handful of grass and pull upward.<\/li>    <li>Healthy grass should resist firmly.<\/li>    <li>If it comes up easily in sheets, suspect grubs.<\/li> <\/ol>    <h2 class=\"wp-block-heading\" id=\"2-3-increased-bird-and-animal-activity-in-your-yard\">3. Increased Bird and Animal Activity in Your Yard<\/h2>    <figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"556\" src=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/09\/raccoon-animal-wildlife-forest-1c4693d551f4ae17e2bd8a2abda0b2aa-1.jpg\" alt=\"Grey and brown raccoon in a lawn\" class=\"wp-image-120599\" srcset=\"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/09\/raccoon-animal-wildlife-forest-1c4693d551f4ae17e2bd8a2abda0b2aa-1.jpg 800w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/09\/raccoon-animal-wildlife-forest-1c4693d551f4ae17e2bd8a2abda0b2aa-1-300x209.jpg 300w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/09\/raccoon-animal-wildlife-forest-1c4693d551f4ae17e2bd8a2abda0b2aa-1-150x104.jpg 150w, https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/09\/raccoon-animal-wildlife-forest-1c4693d551f4ae17e2bd8a2abda0b2aa-1-768x534.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Raccoon in lawn. Photo Credit: <a href=\"https:\/\/www.pickpik.com\/raccoon-animal-wildlife-forest-woods-nature-12510\" target=\"_blank\" rel=\"noreferrer noopener\">Pickpik<\/a><\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">If you&#8217;re noticing torn-up patches of turf, the problem might not be the animals themselves, but what they&#8217;re hunting. According to Rosenkranz, raccoons and skunks often dig into lawns to feed on grubs they can smell beneath the surface.<\/p>    <p class=\"wp-block-paragraph\">While these animals reduce grub numbers, their digging often causes more visible damage than the grubs themselves.&nbsp;<\/p>    <p class=\"wp-block-paragraph\"><strong>Common grub predators and their patterns:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li><strong>Crows and starlings:<\/strong> Peck small holes, work in groups, most active at dawn<\/li>    <li><strong>Raccoons and skunks:<\/strong> Create cone-shaped divots 2-3 inches deep, dig at night<\/li>    <li><strong>Moles:<\/strong> Create raised tunnels while hunting grubs (also eat earthworms)<\/li>    <li><strong>Armadillos<\/strong> (southern states): Dig shallow, broad holes<\/li> <\/ul>    <p class=\"wp-block-paragraph\"><strong>Important:<\/strong> Occasional visits by one or two birds are normal. Persistent daily wildlife activity in specific areas suggests a grub population large enough to attract predators.<\/p>    <h2 class=\"wp-block-heading\" id=\"3-4-dead-grass-in-irregular-patches\">4. Dead Grass in Irregular Patches<\/h2>    <p class=\"wp-block-paragraph\">As the grass feeding continues, discolored grass eventually dies. Grub damage creates irregular dead patches, not neat circular spots from <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/common-lawn-diseases\/\">common lawn diseases<\/a>.<\/p>    <p class=\"wp-block-paragraph\"><strong>Typical grub damage patterns:<\/strong><\/p>    <ul class=\"wp-block-list\"> <li>Scattered patches from softball-sized to several feet across<\/li>    <li>Mostly concentrated in sunny areas where beetles lay eggs<\/li>    <li>No distinct circular or ring pattern (unlike fungal diseases)<\/li> <\/ul>    <p class=\"wp-block-paragraph\">Critical point: Dead grass from grubs won&#8217;t recover because the root system is gone. These areas need overseeding after treating the infestation; otherwise, new grass will be eaten as well. For more information on overseeding, check out our article on <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-overseed-lawn\/\">How to Overseed a Lawn in 8 Simple Steps<\/a>.<\/p>    <h2 class=\"wp-block-heading\" id=\"4-5-damage-timing-late-summer-to-fall-or-early-spring\">5. Damage Timing: Late Summer to Fall OR Early Spring<\/h2>    <p class=\"wp-block-paragraph\">By late summer, grub damage becomes visible: \u201cAdult (beetles) lay their eggs in 1-2 inches of soil from June to August,\u201d Ronsenkranz says.<\/p>    <p class=\"wp-block-paragraph\">However, some of these pests have multi-year lifecycles. \u201cWhen the soil gets cold from winter weather, the grubs move deeper into the soil and move back up to feed on the roots when spring warms the soil,\u201d she says.<\/p>    <p class=\"wp-block-paragraph\">In sum, look out for damage during these times of the year:<\/p>    <ul class=\"wp-block-list\"> <li><strong>Late summer and peak in early fall (August &#8211; October)<\/strong><\/li>    <li><strong>Spring (March &#8211; May)<\/strong><\/li> <\/ul>    <p class=\"wp-block-paragraph\">Damage outside these windows? It&#8217;s likely not grubs. Explore other common pest problems with our article: <a href=\"https:\/\/www.lawnstarter.com\/blog\/pest-control\/common-insect-pests-damaging-lawn\/\">Common Insect Pests Damaging Your Lawn<\/a><\/p>    <h2 class=\"wp-block-heading\" id=\"5-6-10-or-more-grubs-per-square-foot\">6. 10 or More Grubs Per Square Foot<\/h2>    <p class=\"wp-block-paragraph\">The only way to definitively confirm a grub problem is to dig into your soil and count them. This takes around 10 minutes and removes all guesswork.<\/p>    <p class=\"wp-block-paragraph\"><strong>The grub confirmation test, according to Rosenkranz:<\/strong><\/p>    <p class=\"wp-block-paragraph\"><strong>What you&#8217;ll need:<\/strong> Shovel or spade, garden gloves<\/p>    <p class=\"wp-block-paragraph\"><strong>Steps:<\/strong><\/p>    <ol class=\"wp-block-list\"> <li>Choose a damaged area (patchy grass, loose turf, or wildlife digging).<\/li>    <li>Cut three sides of a 1-foot section of lawn with your shovel, going 2-3 inches deep.<\/li>    <li>Roll back the sod, like opening a book.<\/li>    <li>Search the soil and count any white, C-shaped grubs in the soil, with a brown or tan head.<\/li> <\/ol>    <p class=\"wp-block-paragraph\">\u201cIf only 1-5 grubs are found, it is usually not a problem, but if 10-20 C-shaped white grubs are found in a square foot of soil, there is a problem,\u201d Rosenkranz says.<\/p>    <p class=\"wp-block-paragraph\"><strong>Found grubs above the threshold?<\/strong> Read our guide, <a href=\"https:\/\/www.lawnstarter.com\/blog\/home-garden\/lawn-grubs-how-kill\/\">Lawn Grubs: How and When to Kill Them<\/a>, for treatment products, timing, and prevention.<\/p>    <h2 class=\"wp-block-heading\" id=\"6-how-to-tell-grubs-apart-from-other-lawn-problems\">How to Tell Grubs Apart from Other Lawn Problems<\/h2>    <p class=\"wp-block-paragraph\">Several lawn issues create brown patches that look similar to grub damage. Here&#8217;s how to tell them apart.<\/p>    <p class=\"wp-block-paragraph\"><strong>What grubs look like:<\/strong> Grubs are white, C-shaped larvae with brown heads that live underground. You won&#8217;t see them on the surface, so confirming grubs always requires digging.<\/p>    <h3 class=\"wp-block-heading\" id=\"7-grubs-vs-chinch-bugs\">Grubs vs. Chinch Bugs<\/h3>    <p class=\"wp-block-paragraph\"><strong>Similarities:<\/strong> Both cause yellowing grass that turns brown<\/p>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>Grubs<\/strong><\/td><td><strong>Chinch Bugs<\/strong><\/td><\/tr><tr><td><strong>Location of pest<\/strong><\/td><td>Underground in soil<\/td><td>On grass blades at soil level<\/td><\/tr><tr><td><strong>Turf peels away<\/strong><\/td><td>Yes, very easily<\/td><td>Sometimes, but not as easily<\/td><\/tr><tr><td><strong>Root damage<\/strong><\/td><td>Severe, roots completely eaten<\/td><td>Minimal root damage<\/td><\/tr><tr><td><strong>Time of year<\/strong><\/td><td>Late summer\/fall or spring<\/td><td>Mid to late summer (heat)<\/td><\/tr><tr><td><strong>Visible insects<\/strong><\/td><td>Must dig to find<\/td><td>Visible with close inspection at grass base<\/td><\/tr><\/tbody><\/table><\/figure>    <p class=\"wp-block-paragraph\"><strong>Test it:<\/strong> Part the grass and look at the soil surface. Chinch bugs are tiny (1\/5 inch) black insects with white wings that you can see crawling around. Grubs are underground and require digging.<\/p>    <p class=\"wp-block-paragraph\"><strong>Related:<\/strong> <a href=\"https:\/\/www.lawnstarter.com\/blog\/pest-control\/get-rid-of-chinch-bugs\/\">How to Get Rid of Chinch Bugs on the Lawn<\/a><\/p>    <h3 class=\"wp-block-heading\" id=\"8-grubs-vs-brown-patch-disease\">Grubs vs. Brown Patch Disease<\/h3>    <p class=\"wp-block-paragraph\"><strong>Similarities:<\/strong> Both cause brown, dead grass in patches<\/p>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>Grubs<\/strong><\/td><td><strong>Brown Patch Disease<\/strong><\/td><\/tr><tr><td><strong>Shape of damage<\/strong><\/td><td>Irregular, scattered<\/td><td>Circular rings, often with green centers<\/td><\/tr><tr><td><strong>Turf pulls away<\/strong><\/td><td>Yes, easily<\/td><td>No, still rooted<\/td><\/tr><tr><td><strong>Root condition<\/strong><\/td><td>Eaten away<\/td><td>Present but infected<\/td><\/tr><tr><td><strong>Time of day<\/strong><\/td><td>No pattern<\/td><td>Often worse in morning<\/td><\/tr><tr><td><strong>Moisture<\/strong><\/td><td>Prefer moist soil, but generally unrelated<\/td><td>Worse in humid, wet conditions<\/td><\/tr><\/tbody><\/table><\/figure>    <p class=\"wp-block-paragraph\"><strong>Test it:<\/strong> Circular patches with defined edges usually point to disease, not grubs.<\/p>    <p class=\"wp-block-paragraph\"><strong>Related:<\/strong><\/p>    <p class=\"wp-block-paragraph\">\u2013 <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/what-is-brown-patch\/\">What is Brown Patch Disease?<\/a><br>\u2013 <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-treat-brown-patch-disease\/\">How to Treat Brown Patch Disease in Your Lawn<\/a><\/p>    <h3 class=\"wp-block-heading\" id=\"9-grubs-vs-soil-compaction\">Grubs vs. Soil Compaction<\/h3>    <p class=\"wp-block-paragraph\"><strong>Similarities:<\/strong> Both cause thin, struggling grass; both make grass vulnerable to stress<\/p>    <figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>Grubs<\/strong><\/td><td><strong>Compaction<\/strong><\/td><\/tr><tr><td><strong>Turf peels away<\/strong><\/td><td>Yes, very easily<\/td><td>No, still rooted<\/td><\/tr><tr><td><strong>Root length<\/strong><\/td><td>Roots eaten\u2014very short or gone<\/td><td>Shallow roots due to dense soil<\/td><\/tr><tr><td><strong>Wildlife digging<\/strong><\/td><td>Common<\/td><td>Never<\/td><\/tr><tr><td><strong>Grubs in soil<\/strong><\/td><td>10+ per square foot<\/td><td>Few or none<\/td><\/tr><tr><td><strong>Affected areas<\/strong><\/td><td>Can appear anywhere<\/td><td>Often in high-traffic areas<\/td><\/tr><\/tbody><\/table><\/figure>    <p class=\"wp-block-paragraph\"><strong>Test it:<\/strong> The grub confirmation test (digging up a square foot) instantly differentiates these. No grubs means not a grub problem. Consider <a href=\"https:\/\/www.lawnstarter.com\/landscaping\/lawn-aeration\">lawn aeration services<\/a> if compaction is the issue.<\/p>    <p class=\"wp-block-paragraph\"><strong>Related:<\/strong><\/p>    <p class=\"wp-block-paragraph\">\u2013 <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-compacted-soil\/\">How to Tell You Have Compacted Soil<\/a><br>\u2013 <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/how-to-fix-compacted-soil\/\">How to Fix Compacted Soil<\/a><\/p>    <h2 class=\"wp-block-heading\" id=\"10-faq\">FAQ<\/h2>    <div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1771041929386\"><strong class=\"schema-faq-question\">Can Healthy Lawn Practices Prevent Grub Infestations?<\/strong> <p class=\"schema-faq-answer\">No. While proper mowing, deep watering, and regular aeration make your lawn more resilient, they don&#8217;t prevent grubs. Adult beetles fly in from neighboring properties to lay eggs regardless of your lawn care.<br\/><br\/>However, a healthy lawn will be more resistant to damage. As Rosenkranz explains, \u201cKeeping your lawn mostly grub-free can be achieved by cutting the blades of grass 2 \u00bd to 3 inches tall (depending on your grass type).\u201d<br\/><br\/>She notes that \u201ctaller blades of grass provide more shade to the soil, keeping it cooler and reducing heat stress on the roots.\u201d Moreover, if a lawn is properly fertilized, \u201cthe lawn roots can absorb the nutrients and grow stronger without having to share the nutrients with the blades of grass.\u201d<br\/><br\/>There are also preventive grub-control treatments you can include in your lawn care maintenance routine.\u00a0<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1771041945655\"><strong class=\"schema-faq-question\">Why Do Grubs Damage Only Parts of My Lawn?<\/strong> <p class=\"schema-faq-answer\">Grubs concentrate where adult beetles laid eggs, which isn&#8217;t uniform. Rosenkranz explains that beetles prefer sunny, moist areas of a healthy, irrigated lawn. Once hatched, larvae don&#8217;t travel far, creating localized damage patches rather than affecting your entire lawn.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1771041952222\"><strong class=\"schema-faq-question\">Can You Have Grubs Without Seeing Animals Digging?<\/strong> <p class=\"schema-faq-answer\">Yes. Wildlife activity suggests a large population, but many infestations go unnoticed. Factors include grub density, predator presence (dogs and coyotes deter raccoons), and location (urban areas have fewer foraging animals). You can have 10-15 grubs per square foot without ever seeing wildlife. Always confirm by digging and counting.<\/p> <\/div> <\/div>    <h2 class=\"wp-block-heading\" id=\"11-ready-to-solve-your-grub-problem\">Ready to Solve Your Grub Problem?<\/h2>    <p class=\"wp-block-paragraph\">Now you know exactly how to identify grub damage, confirm an infestation, and differentiate grubs from other lawn problems. If you find 10 or more grubs per square foot, your next step is to treat.<\/p>    <p class=\"wp-block-paragraph\"><strong>Want professional help?<\/strong> LawnStarter connects you with top-rated <a href=\"https:\/\/signup-web.lawnstarter.com\/cart\/contact-info?intent=fertilization\">local lawn treatment pros<\/a> who can handle diagnosis, treatment, and repair. Get a free instant quote today.<\/p>    <p class=\"wp-block-paragraph\"><strong>Additional lawn care resources:<\/strong><\/p>    <p class=\"wp-block-paragraph\">\u2013 <a href=\"https:\/\/www.lawnstarter.com\/blog\/pest-control\/how-to-control-summer-lawn-pests\/\">Summer Lawn Pests and How to Get Rid of Them<br><\/a>\u2013 <a href=\"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/why-is-grass-dying-despite-watering\/\">Why Is My Grass Dying Even Though I Water It?<\/a><\/p>    <p class=\"wp-block-paragraph\">Main Image: Crow tearing up a lawn for grubs. Image Credit: <a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:Corvus_corone_tearing_up_lawn_JdP_2018-01-02.jpg\" target=\"_blank\" rel=\"noreferrer noopener\">Marie-Lan Nguyen<\/a> \/ Wikimedia Commons \/ <a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\" target=\"_blank\" rel=\"noreferrer noopener\">CC BY 4.0<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>The most common signs you have grubs in your lawn include brown patches, grass that peels back, and bird activity. Learn how to identify these pests.<\/p>\n","protected":false},"author":130,"featured_media":120602,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[9],"class_list":["post-120584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lawn-care-2","tag-lawn-care"],"acf":[],"featured_image_src":"https:\/\/www.lawnstarter.com\/blog\/wp-content\/uploads\/2024\/09\/1024px-Corvus_corone_tearing_up_lawn_JdP_2018-01-02.jpg?wsr","author_info":{"display_name":"Maria Isabela Reis","author_link":"https:\/\/www.lawnstarter.com\/blog\/author\/maria-isabela-reis\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Tell If You Have Grubs in Your Lawn<\/title>\n<meta name=\"description\" content=\"The most common signs you have grubs in your lawn include brown patches, grass that peels back, and bird activity. 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As Rosenkranz explains, \u201cKeeping your lawn mostly grub-free can be achieved by cutting the blades of grass 2 \u00bd to 3 inches tall (depending on your grass type).\u201d<br\/><br\/>She notes that \u201ctaller blades of grass provide more shade to the soil, keeping it cooler and reducing heat stress on the roots.\u201d Moreover, if a lawn is properly fertilized, \u201cthe lawn roots can absorb the nutrients and grow stronger without having to share the nutrients with the blades of grass.\u201d<br\/><br\/>There are also preventive grub-control treatments you can include in your lawn care maintenance routine.\u00a0","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#faq-question-1771041945655","position":2,"url":"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#faq-question-1771041945655","name":"Why Do Grubs Damage Only Parts of My Lawn?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Grubs concentrate where adult beetles laid eggs, which isn't uniform. Rosenkranz explains that beetles prefer sunny, moist areas of a healthy, irrigated lawn. Once hatched, larvae don't travel far, creating localized damage patches rather than affecting your entire lawn.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#faq-question-1771041952222","position":3,"url":"https:\/\/www.lawnstarter.com\/blog\/lawn-care-2\/signs-lawn-has-grubs\/#faq-question-1771041952222","name":"Can You Have Grubs Without Seeing Animals Digging?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. Wildlife activity suggests a large population, but many infestations go unnoticed. Factors include grub density, predator presence (dogs and coyotes deter raccoons), and location (urban areas have fewer foraging animals). You can have 10-15 grubs per square foot without ever seeing wildlife. Always confirm by digging and counting.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/posts\/120584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/users\/130"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/comments?post=120584"}],"version-history":[{"count":1,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/posts\/120584\/revisions"}],"predecessor-version":[{"id":150890,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/posts\/120584\/revisions\/150890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/media\/120602"}],"wp:attachment":[{"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/media?parent=120584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/categories?post=120584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lawnstarter.com\/blog\/wp-json\/wp\/v2\/tags?post=120584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}