Grubs might be small, but they can cause big trouble for your lawn. These plump, white larvae feed on grass roots just below the surface, and if left unchecked, can turn a once-green yard into a dry, thinning patchwork. While some grub activity in the soil is common, an infestation can cause major damage, especially during late summer when these pests are actively feeding.
Knowing what to look for early can help prevent long-term damage. Spotting the signs before the infestation spreads is the simplest way to save your lawn from needing more serious repair. Whether you’ve seen unusual patches in your grass or noticed wildlife digging around more than usual, the subtle signs of grub activity are clues worth paying attention to.
Grubs don’t show themselves easily, so knowing what their presence looks like at the surface is the first step. Healthy lawns don’t usually show rapid browning or detach easily from the soil, so anything out of the ordinary should raise a flag.
Here are the most common signs to keep an eye on:
– Dead patches of grass: This is often the first thing homeowners notice. Large, irregular brown spots can show up even if you’re keeping up with watering. The grass may seem like it’s struggling without an apparent reason.
– Spongy or loose turf: Walk across your lawn and feel the ground. If it feels unusually soft or the grass pulls up like a loose carpet with little resistance, grubs may be eating away at the roots.
– Increased wildlife activity: Birds, skunks, raccoons, and even armadillos dig for grubs. If you’re seeing more animals poking around your yard, they might be treating it like an all-you-can-eat buffet.
– Rapid spread of damage: If brown spots increase quickly, especially during the warm end of summer, it’s likely that grubs are actively feeding and causing more root damage every day.
If one or more of these signs show up in your yard, don’t ignore them. Grub problems usually don’t get better on their own and can lead to extended lawn repairs if nothing is done.
Once you suspect a grub issue, the next step is confirming it. A quick soil inspection can give you a pretty clear answer. You don’t need any special tools or devices—just a shovel and a little patience.
Start by choosing a suspicious-looking area, especially where the grass is thinning or browning. Cut out a small square of turf about one foot across and two to three inches deep. Gently peel it back and take a look at the soil underneath. If you spot several white, soft-bodied larvae curled into a C-shape, you’ve likely got a grub problem.
Count how many you see in the square. While a few grubs here and there isn’t usually a big deal, five or more in one square foot could mean your lawn is at risk. Make sure to inspect a few sections of your lawn to get a more accurate picture of how widespread the problem might be.
Grubs tend to show up most in late summer and early fall, when they’re actively feeding and fattening up before cooler weather. That’s a good time of year to do your quick check, as they’ll be easier to see and more likely to cause noticeable damage.
One of the best ways to deal with grubs is to stop them from becoming a problem in the first place. Healthy grass grows stronger roots. Strong roots are better at withstanding minor grub activity and other common lawn pests. That’s why regular lawn upkeep matters even when everything looks fine on the surface.
Here are a few habits that go a long way in grub prevention:
– Mow at the right height. Keeping grass slightly taller helps the roots grow deeper, making your lawn more resilient.
– Water deeply but less often. Overwatering creates a shallow root system that grubs love.
– Rake and remove thatch. Too much thatch creates a barrier that locks in moisture and gives grubs a place to shelter.
– Overseed bare or thinning areas. Thicker lawns are harder for grub-damaging beetles to target for laying eggs.
Routine care like this helps give your lawn the best chance to fight off early grub activity before it turns into a full-blown infestation. Even if grubs do show up, lawns that are consistently maintained tend to recover faster.
There are times when simple prevention strategies aren’t enough. If your soil checks turn up a large number of grubs, or if lawn damage is getting worse day by day, it’s time to consider professional help. The longer the grubs feed, the more recovery your lawn will need, from root regrowth to patch repairs.
Recommended pest control companies can help assess the extent of the infestation and provide a thorough solution. Professionals know how to spot other signs that may go unnoticed and take steps that match the conditions of your yard, time of year, and grass type. That means safer treatment for your lawn and a quicker path back to healthy turf.
This also helps if you’re dealing with repeated grub problems each year. If beetles keep laying eggs in the same parts of your lawn, an expert can help interrupt that pattern, improve weak spots in your turf, and get everything balanced again.
After getting grubs under control, your next goal is to make sure they don’t return next season. Late summer and early fall are prime times for activity, so how you care for your lawn heading into these months matters.
Keep your mowing schedule steady, and use proper watering so soil doesn’t stay too wet or too dry. Pay attention to shady, damp spots where beetles may be more likely to lay their eggs. It’s also smart to do a simple grub check every late summer, even if the lawn looks fine. A quick lift of the turf in a few random areas can give you peace of mind.
The better shape your lawn stays in, the less appealing it becomes for grubs to settle in. Shifting your routine from reactive to proactive care can make all the difference.
Grubs can go unnoticed for a while, but by the time the signs become clear, the damage may already be underway. Early identification, followed by routine care and attention, is the most reliable way to keep your grass in good shape.
If you think your lawn might be showing any of these warning signs, acting quickly is always your best bet. Whether it’s handling a mild case before it grows or dealing with more serious damage, getting help from lawn professionals who know exactly what to look for can make sure your lawn stays thick, green, and grub-free.
Grub issues can be a headache, but tackling them early ensures your lawn stays lush and green. If you notice any signs of these pests, getting help from recommended pest control companies can make a world of difference. At Ryan Lawn & Tree, we’re ready to assist with expert solutions tailored to keep your lawn healthy. Explore our pest control services for more information.