- Benefits of earthworms in your yard<\/a>
- \u2713 Improved soil health<\/a><\/li>
- \u2713 Decomposed thatch<\/a><\/li>
- \u2713 Improved soil structure<\/a><\/li>
- \u2713 Repaired topsoil<\/a><\/li>
- \u2713 Deeper roots<\/a><\/li>
- \u2713 Free mulch<\/a><\/li><\/ul><\/li>
- How to encourage earthworms in your yard<\/a><\/li>
- Disadvantages of earthworms in your yard<\/a>
- \u2717 Unsightly castings<\/a><\/li>
- \u2717 Uninvited wildlife<\/a><\/li><\/ul><\/li>
- How to control earthworms in your yard<\/a><\/li>
- When to hire a pro<\/a><\/li><\/ul> \t\t\t<\/div> \t\t<\/div><\/div>
Benefits of earthworms in your yard<\/span><\/h2>
Earthworms are more than just fish bait \u2013\u2013 they play an essential role in your lawn\u2019s health. As they chow down on your lawn\u2019s soil and decompose its organic matter, they benefit your lawn in several ways.<\/p>
Aristotle called earthworms the \u201cintestines of the earth,\u201d and for a good reason: <\/p>
\u2713 Improved soil health<\/span><\/h3>
Earthworms increase soil fertility with their worm castings (aka worm poop). <\/p>
Here\u2019s how:<\/strong> Earthworms consume soil, organic matter, and microbes, and as this material passes through their digestive system, it becomes concentrated with more<\/em> nutrients and microbes. As a result, the casting is more nutritious than the surrounding soil. <\/p>
OK, but how does increased soil fertility help your lawn? Think of it this way: <\/p>
Just like you need vitamins and minerals to grow strong and healthy, so does your grass. Your grass gets its nutrients from the soil. Fertile soil has plenty of nutrients for your grass, including potassium, nitrogen, and phosphorus, whereas sterile soil won\u2019t support your grass very well. <\/p>
The more fertile your soil, the healthier your lawn is likely to be. And the healthier your lawn, the less vulnerable it will be to weeds, pests, and disease. <\/p>
Worms also add nutrients to the soil when they die \u2013\u2013 their bodies decompose and add nitrogen to the soil. <\/p>
\u2713 Decomposed thatch<\/span><\/h3>
![\"Illustration](\"https:\/\/lawnlove.com\/blog\/wp-content\/uploads\/2022\/01\/thatch-illustration.jpg\")
Infographic by Juan Rodriguez<\/figcaption><\/figure> Thatch<\/a> is the layer of dead and living organic material accumulating between the soil surface and grass blades. Earthworms like to snack on organic matter, which means they love to snack on thatch. <\/p>
A thin layer of thatch is good for the lawn, but a thick thatch layer can be troublesome. A thatch layer that\u2019s one-half inch thick or more can turn into a breeding ground for pests and disease. It can also prevent water and fertilizer from accessing the soil. <\/p>
\u2713 Improved soil structure<\/span><\/h3>
Earthworms help loosen compact soil by creating tunnels as they wiggle about and eat, encouraging the movement of water, nutrients, and oxygen. Your turfgrass will struggle to grow if it can\u2019t drink, eat, or breathe, so it\u2019s always helpful to have these natural aerators<\/a> in your lawn. <\/p>
\u2713 Repaired topsoil<\/span><\/h3>
Earthworms help repair topsoil by leaving their nutrient-rich castings on the soil\u2019s surface. Topsoil is the earth\u2019s upper, outermost layer of soil, and its high fertility is necessary for crop and plant growth. <\/p>
Yet, due to the erosion, the planet is losing its topsoil at a rapid rate. Homeowners can combat erosion<\/a> and protect topsoil in various ways, including encouraging earthworm activity in the lawn and garden. <\/p>
\u2713 Deeper roots<\/span><\/h3>
As earthworms dig their tunnels, they make space for plant roots to grow deeper into the soil. The deeper your lawn\u2019s root system, the healthier and stronger its turf will be. <\/p>
\u2713 Free mulch<\/span><\/h3>
Think of earthworm castings in your yard as free mulch for your garden. The number of earthworm castings in your lawn (which look like smalls piles of soil) depends on the yard\u2019s earthworm population size and how often they rise to the surface<\/p>
When the castings are dry, rake them up and toss them in your garden. The castings add nutrients and plant food to the garden soil, and their high concentration of microbes can help ward off pests and diseases<\/a>. (You can also toss them in your compost pile). <\/p>
How to encourage earthworms in your yard<\/span><\/h2>
If the benefits of earthworms sound like a good deal to you, there are many ways you can increase their activity in your yard. Whether you want to maintain an existing earthworm population or encourage new earthworms to move in, the following tips and tricks can make your yard desirable to earthworms: <\/p>
- Amend your soil so that the pH is between 6.0 and 7.0<\/strong> (this is also the optimal pH for growing grass).\u00a0<\/li>
- Give the worms plenty of organic matter to chow down on<\/strong>. Sprinkling compost across the lawn as a topdressing is a great way to add more organic matter.<\/li>
- Aerate the soil. <\/strong>Worms won\u2019t find your yard too inviting if its soil is compact. Why? Because worms need oxygen, and compact soil prevents the movement of oxygen. Loosen the soil with an aerator so that worms have better access to air as they work.\u00a0<\/li>
- Keep your lawn watered and the soil moist<\/strong>. Earthworms don\u2019t like dry conditions.\u00a0<\/li>
- Reduce your use of pesticides.<\/strong> Pesticides can harm worms and negatively affect their reproduction. Instead, practice a good lawn care routine<\/a> that keeps the pests and weeds at bay.\u00a0<\/li>
- Avoid tilling the soil;<\/strong> otherwise, you might kill the earthworms.\u00a0<\/li> <\/ul>
Disadvantages of earthworms in your yard<\/span><\/h2>
Earthworms are a great help in the yard and garden, but sometimes, the presence of earthworms may prove irksome when their population is high. Too many earthworms might lower your lawn\u2019s curb appeal and invite critters, like moles and other wildlife. <\/p>
\u2717 Unsightly castings<\/span><\/h3>
Finding a few castings in the yard is normal. But sometimes, castings can overtake the lawn, especially when many worms live in the soil. For some homeowners, these unsightly castings can be a dealbreaker. <\/p>
\u2717 Uninvited wildlife<\/span><\/h3>
When your soil is overflowing with earthworms, the yard may attract hungry animals, like moles, gophers, and armadillos. These pests can tear up your lawn in search of food, destroying its curb appeal and your hard work.<\/p>
How to control earthworms in your yard<\/span><\/h2>
Had enough with returning moles and excessive worm castings? Depending on your tolerance level, sometimes the disadvantages of too many earthworms outweigh the benefits. <\/p>
The key to earthworm control isn\u2019t<\/em><\/strong> to exterminate the entire worm population. You still want your lawn to reap the benefits of these decomposers. Here are some ways you can lower the number of earthworms in your yard without wiping them out completely: <\/p>
- Adjust your watering routine.<\/strong> If earthworms are rising to the yard\u2019s surface and leaving behind their castings, it might mean you\u2019re overwatering. Most established lawns need only 1 to 1.5 inches of water per week.\u00a0<\/li>
- Remove thatch with a dethatcher. <\/strong>Remember, earthworms love to snack on thatch. Removing thatch from the lawn can help eliminate one of their food sources.\u00a0<\/li>
- Manually remove the worms.<\/strong> After a heavy rainstorm, worms will wiggle their way to the surface. Grab the earthworms and sell them to a local garden center, use them as fishing bait, or toss them in your compost bin to begin vermicomposting<\/a>.\u00a0<\/li>
- Introduce a natural enemy. <\/strong>Birds will gladly gulp down your lawn\u2019s earthworms. Attract birds to the yard<\/a> with a bird feeder.\u00a0<\/li>
- Reduce the use of organic matter<\/strong> as a soil amendment, such as compost topdressing. Earthworms love organic matter, and removing this food source can help keep their numbers under control.\u00a0<\/li>
- Never use pesticides<\/strong> to control an earthworm infestation. Doing so could exterminate all the worms in the yard and harm the ecosystem.\u00a0<\/li> <\/ul>
When to hire a pro<\/span><\/h2>
Worms might be a big help in the lawn, but they can\u2019t carry the whole thing on their backs. Give these hard workers some assistance by hiring a local lawn care professional<\/a>. From mowing the lawn to aerating the soil, a lawn care pro can maintain your lawn\u2019s beauty while also encouraging a healthy earthworm population. <\/p>
Main Photo Credit: Katja Schulz | Flickr<\/a> | CC BY 2.0<\/a><\/p>","protected":false},"excerpt":{"rendered":"
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- Remove thatch with a dethatcher. <\/strong>Remember, earthworms love to snack on thatch. Removing thatch from the lawn can help eliminate one of their food sources.\u00a0<\/li>
- Give the worms plenty of organic matter to chow down on<\/strong>. Sprinkling compost across the lawn as a topdressing is a great way to add more organic matter.<\/li>
- \u2717 Uninvited wildlife<\/a><\/li><\/ul><\/li>
- \u2713 Decomposed thatch<\/a><\/li>
- \u2713 Improved soil health<\/a><\/li>