- What are worm castings?<\/a><\/li>
- How to deal with earthworm castings<\/a>
- Grab the rake<\/a><\/li>
- Adjust your watering routine<\/a><\/li>
- Raise the mowing height<\/a><\/li>
- Lower the earthworm population<\/a><\/li><\/ul><\/li>
- How to control earthworms<\/a>
- Remove thatch\u00a0<\/a><\/li>
- Manually remove the earthworms<\/a><\/li>
- Introduce a natural enemy<\/a><\/li>
- Reduce organic matter\u00a0<\/a><\/li><\/ul><\/li>
- What are the disadvantages of worm castings?<\/a><\/li>
- What are the benefits of worm castings?<\/a>
- Benefits of worm castings for the lawn<\/a><\/li>
- Benefits of worm castings for the garden<\/a><\/li><\/ul><\/li>
- FAQs about how to deal with earthworm castings on your lawn<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>
What are worm castings?<\/span><\/h2>
![\"close-up](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/04\/rsz_1earthworm-pile-g55adbc753_1280.jpg\")
Pixabay<\/a><\/figcaption><\/figure> As worms wiggle beneath your yard\u2019s surface, they consume soil, microorganisms, and organic matter. The material passes through the worm\u2019s digestive system and exits as waste, also known as worm castings. Worm castings look like small piles of soil and are roughly the size of a quarter. Don\u2019t mistake these piles for molehills, which look like little volcanoes in the yard. <\/p>
Worm waste contains essential nutrients like nitrogen, phosphorus, potassium, iron, calcium, and sulfur. The worm\u2019s digestive system creates a coating around the waste, which allows for the gradual release of nutrients similar to slow-release fertilizer. Worm castings also contain soil microbes<\/a> that improve nutrient availability, decomposition, and disease and pest suppression. <\/p>
Worm castings peak in autumn but can pop up in the yard at any time of year. They\u2019re a common maintenance problem in golf courses. However, some people love worm castings so much that they make their own vermicompost bins<\/a> to break down their kitchen scraps \u2014 though it\u2019s worth noting that red wigglers are more suited to this task than your backyard earthworms.<\/p>
How to deal with earthworm castings<\/span><\/h2>
When earthworm castings are ruining your lawn\u2019s curb appeal, the last thing you want to do is spray the yard with non-selective pesticides to eliminate the worms. Killing all the worms in your yard might control the castings, but it will only create more problems for your lawn. Pesticides also can harm other beneficial insects. <\/p>
To keep the earthworm castings under control, here\u2019s what you can do: <\/p>
Grab the rake<\/span><\/h3>
![\"Rake](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/06\/rake-leaves_800.jpg\")
Peggychoucair<\/a> | Pixabay <\/figcaption><\/figure> Clear your lawn of earthworm castings by raking or sweeping the soil piles when they\u2019re dry. Collecting them while wet won\u2019t do any good, so don\u2019t perform this task after a rain shower. <\/p>
Once you\u2019ve raked or swept up the castings, toss them in your compost bin or garden soil. While you enjoy a clean yard, your plants will enjoy free fertilizer. <\/p>
Adjust your watering routine<\/span><\/h3>
Overwatering encourages worms to rise to the surface (which is where they\u2019ll leave their castings). <\/p>
In other words, you don\u2019t want your lawn\u2019s surface to be consistently moist. That\u2019s why it\u2019s better to water your lawn<\/a> less often and for long periods than to water too often and for short periods. Watering infrequently and for long periods also encourages a deeper root system and is healthier for your lawn. <\/p>
And don\u2019t give your lawn more water than it needs\u2013\u2013 most established lawns need only 1 to 1.5 inches of water per week<\/strong>. To determine how long you need to water:<\/p>
- Place empty tuna or cat food cans around your lawn. <\/li>
- Turn on your sprinkler.<\/li>
- Time how long it takes for the cans to fill up with 1 to 1.5 inches of water. If it takes a different amount of time for different areas, find the average. <\/li> <\/ol>
Raise the mowing height<\/span><\/h3>
If you want your lawn to reap the benefits of worm castings but don\u2019t like how they look, raise your mowing height. The taller grass will help cover the castings. <\/p>
Lower the earthworm population<\/span><\/h3>
Sometimes, excessive worm castings are a sign of a high earthworm population. To lower the number of earthworms in your yard, consider making conditions less hospitable (but don\u2019t exterminate them with pesticides). Learn how to control earthworms in the section below. <\/p>
How to control earthworms<\/span><\/h2>
If your yard is overflowing with worm castings, there are some steps you can take to lower worm activity. Earthworms benefit your lawn\u2019s soil, so you don\u2019t want to eliminate them all \u2013\u2013 just enough to minimize the unsightly castings. <\/p>
Remove thatch <\/span><\/h3>
![\"Illustration](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration.jpg\")
Infographic by Juan Rodriguez<\/figcaption><\/figure> Thatch is the layer of dead and living organic matter that accumulates between the soil surface and the grass blades. Earthworms love to munch on the thatch layer<\/a>, so you can encourage them to search elsewhere for food by getting rid of their snack. <\/p>
How, you ask? By dethatching your lawn<\/a> with a dethatcher, power rake, or vertical mower. You\u2019ll run your tool of choice all over your lawn to remove the layer, then clean up the debris. If you\u2019d rather not do it yourself, professional dethatching costs<\/a> around $190 an hour<\/strong>.<\/p>
Manually remove the earthworms<\/span><\/h3>
After a heavy rainstorm, worms will often wiggle to the surface. Pick up the earthworms and toss them in your compost bin, sell them to a local garden center, or use them as fishing bait. <\/p>
Introduce a natural enemy<\/span><\/h3>
Birds will gladly keep your earthworm problem in check. Invite birds to your yard<\/a> with bird feeders and birdbaths. <\/p>
Chickens also can help control worms, but they\u2019re not always a good option. Why? Because you\u2019ll have to deal with chicken poo on the lawn instead of worm poo. <\/p>
Reduce organic matter <\/span><\/h3>
Do you routinely add compost as a top dressing over your lawn<\/a>? You may be encouraging the worms with these tasty lawn treatments. Minimize the application of organic matter to help ward off earthworms. Removing grass clippings also will restrict organic material on the lawn. <\/p>
What are the disadvantages of worm castings?<\/span><\/h2>
Worm castings offer significant health benefits for the lawn\u2019s soil, but worm castings have drawbacks when they take over the yard. <\/p>
- A yard with too many worm castings can look unkempt and ruined with a lumpy and uneven feel.<\/li>
- Worm castings can make lawn mowing difficult and even dull the mower blades. <\/li>
- Excessive castings in the yard also might signify that your soil has a high number of earthworms. This makes it an attractive hunting ground for moles, gophers, and armadillos, which can easily tear up your lawn. <\/li> <\/ul>
What are the benefits of worm castings?<\/span><\/h2>
![\"picture](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2023\/11\/warm-casting.jpg\")
Lou Wagstaffe<\/a> | Canva Pro | License<\/a><\/figcaption><\/figure> Worm castings aren\u2019t all bad. Many homeowners would be pleased to find worm castings<\/a> in their yards due to their benefits and uses. <\/p>
Benefits of worm castings for the lawn<\/span><\/h3>
- Increased soil fertility:<\/strong> As the soil, microbes, and organic matter pass through the earthworm, the invertebrate\u2019s digestive system adds more microbes and nutrients to its digesting food. As a result, the castings are more nutritious than the surrounding soil. Okay, but what\u2019s the big deal about nutritious soil? The bottom line is that worm castings improve your lawn\u2019s soil health, which ultimately improves the health of your turfgrass. And the healthier your turfgrass, the more beautiful and robust it will be. <\/li> <\/ul>
- Free and eco-friendly fertilizer:<\/strong> Since worm castings act as a natural fertilizer for your lawn, you\u2019ll save money on costly commercial fertilizers and protect the environment from harsh chemicals. <\/li> <\/ul>
- Repaired topsoil:<\/strong> Earthworms that expel their castings on the soil surface help rebuild topsoil, the most fertile layer of soil. The planet is losing topsoil at a rapid rate due to erosion, yet topsoil is necessary for growing crops and grass. <\/li> <\/ul>
- Free and nutrient-rich mulch:<\/strong> Don\u2019t know what to do with the worm castings in your lawn? Rake them up and sprinkle them in your garden. Even your vegetables enjoy a health kick now and then. <\/li> <\/ul>
Brownie points:<\/strong> Earthworms offer more than just their castings. Earthworms have many benefits for the lawn<\/a>, including thatch control and aeration. <\/p>
Benefits of worm castings for the garden<\/span><\/h3>
When worm castings appear in your yard, why not toss them in your garden as mulch? Your plants will love the added nutrients, and your garden soil will appreciate the health boost. <\/p>
- Beneficial microbes:<\/strong> Earthworm castings have a high concentration of microbes that help repel pests and soil-borne plant diseases. That means your fruits, flowers, and veggies will likely grow healthier, and you can rely less on pesticides. <\/li> <\/ul>
- Nutritional boost: <\/strong>Castings are highly nutritious and provide food for plants, speeding up germination and producing a higher yield. <\/li> <\/ul>
- Slow-release fertilization with no burns:<\/strong> When the manure exits the worm, the worm forms a mucus coating around the manure that allows the nutrients to release into the soil slowly. The worm casting is a \u2018slow release\u2019 fertilizer that won\u2019t burn your plants<\/a> like some commercial fertilizers can. <\/li> <\/ul>
- Improved moisture retention: <\/strong>Worm castings help retain moisture in the soil, which can prove helpful for plants that can\u2019t tolerate dry soils. <\/li> <\/ul>
FAQs about how to deal with earthworm castings on your lawn<\/span><\/h2>
What kills earthworms in lawns?<\/span><\/h3>
Certain pesticides intended for other pests, such as carbaryl and imidacloprid, are toxic to earthworms in your lawn<\/a>. <\/p>
Lawn care and gardening experts don\u2019t recommend killing earthworms.<\/strong> While it may be tempting to treat earthworms like any other pest, they are crucial to the environment and your lawn\u2019s health. The mere presence of earthworms is a sign your soil is healthy. Pesticides could threaten that health.<\/p>
Rather than a scorched earth approach that harms earthworms and other beneficial creatures, focus on integrated pest management<\/a>. Integrated pest management<\/strong> prioritizes prevention and cultural practices, with pesticides as a last resort. This strategy has better long-term success since it solves the root of the problem rather than attacking only the symptoms. <\/p>
Why are worms coming out of my lawn?<\/span><\/h3>
Worms come out of the lawn for food, to mate, or when it rains. Scientists still debate why worms surface in the rain<\/a>, but the most common theory is that it\u2019s easier and faster for them to move above ground when it\u2019s wet out. <\/p>
What eats earthworms?<\/span><\/h3>
Besides birds, many creatures hunt earthworms<\/a> for food, such as:<\/p>
- Badgers<\/li>
- Cluster flies<\/li>
- Devil\u2019s coach horse beetles<\/li>
- Foxes<\/li>
- Moles<\/li> <\/ul>
However, it\u2019s not wise to encourage all earthworm predators. Some will dig up your yard in search of food, which means you\u2019re trading one unsightly problem for another.<\/p>
Should I put earthworms in my yard?<\/span><\/h3>
Though they provide many benefits, putting earthworms in your yard<\/a> is unnecessary. This may sound confusing after we\u2019ve explained all their benefits, but hear us out. <\/p>
Earthworms aren\u2019t a necessity for a healthy lawn or garden. They\u2019ll likely show up in healthy soil, but they aren\u2019t a cure-all solution for your lawn care or gardening woes. You\u2019ll need a combination of several beneficial lawn treatments<\/a> to keep your grass healthy. <\/p>
An excess amount of earthworms also can harm the local ecosystem, especially since many species aren\u2019t native to North America. It\u2019s best to attract and encourage the existing population rather than introduce them where they didn\u2019t exist before.<\/strong><\/p>
What other pests cause mounds of soil?<\/span><\/h3>
Besides earthworms, mounds of soil may be left by several digging creatures, such as:<\/p>
- Armadillos<\/li>
- Bobcats<\/li>
- Chipmunks<\/li>
- Coyotes<\/li>
- Deer<\/li>
- Foxes<\/li>
- Gophers<\/li>
- Mice<\/li>
- Mole crickets<\/li>
- Moles<\/li>
- Rabbits<\/li>
- Raccoons<\/li>
- Rats<\/li>
- Skunks<\/li>
- Snakes<\/li>
- Squirrels<\/li> <\/ul>
To stop animals from digging<\/a>, follow these methods:<\/p>
- Eliminate food sources, water, and shelter<\/li>
- Use physical barriers like above or below-ground fencing<\/li>
- Apply homemade or commercial chemical deterrents<\/li>
- Use lights, scents, sounds, or sprinklers as scare tactics<\/li>
- Set traps (following any legal guidelines)<\/li> <\/ul>
Find a balance and hire a pro<\/span><\/h2>
Is your lawn suffering from worm poo blemishes, but you don\u2019t want to eradicate the presence of earthworms? Hiring a local lawn care professional<\/a> can help you strike a balance. <\/p>
Skilled in their craft, a lawn care expert can get to the root of your worm casting problem without eliminating your helpful worm population. They can keep your lawn healthy and neat without sacrificing the benefits earthworms provide. From weekly mowings to regular maintenance, leave your lawn in good hands. <\/p>
- Improved moisture retention: <\/strong>Worm castings help retain moisture in the soil, which can prove helpful for plants that can\u2019t tolerate dry soils. <\/li> <\/ul>
- Slow-release fertilization with no burns:<\/strong> When the manure exits the worm, the worm forms a mucus coating around the manure that allows the nutrients to release into the soil slowly. The worm casting is a \u2018slow release\u2019 fertilizer that won\u2019t burn your plants<\/a> like some commercial fertilizers can. <\/li> <\/ul>
- Nutritional boost: <\/strong>Castings are highly nutritious and provide food for plants, speeding up germination and producing a higher yield. <\/li> <\/ul>
- Beneficial microbes:<\/strong> Earthworm castings have a high concentration of microbes that help repel pests and soil-borne plant diseases. That means your fruits, flowers, and veggies will likely grow healthier, and you can rely less on pesticides. <\/li> <\/ul>
- Free and nutrient-rich mulch:<\/strong> Don\u2019t know what to do with the worm castings in your lawn? Rake them up and sprinkle them in your garden. Even your vegetables enjoy a health kick now and then. <\/li> <\/ul>
- Repaired topsoil:<\/strong> Earthworms that expel their castings on the soil surface help rebuild topsoil, the most fertile layer of soil. The planet is losing topsoil at a rapid rate due to erosion, yet topsoil is necessary for growing crops and grass. <\/li> <\/ul>
- Free and eco-friendly fertilizer:<\/strong> Since worm castings act as a natural fertilizer for your lawn, you\u2019ll save money on costly commercial fertilizers and protect the environment from harsh chemicals. <\/li> <\/ul>
- Increased soil fertility:<\/strong> As the soil, microbes, and organic matter pass through the earthworm, the invertebrate\u2019s digestive system adds more microbes and nutrients to its digesting food. As a result, the castings are more nutritious than the surrounding soil. Okay, but what\u2019s the big deal about nutritious soil? The bottom line is that worm castings improve your lawn\u2019s soil health, which ultimately improves the health of your turfgrass. And the healthier your turfgrass, the more beautiful and robust it will be. <\/li> <\/ul>
- Benefits of worm castings for the garden<\/a><\/li><\/ul><\/li>
- Manually remove the earthworms<\/a><\/li>
- Adjust your watering routine<\/a><\/li>
- How to deal with earthworm castings<\/a>