How to Treat Mycelium On Your Lawn

How to Treat Mycelium On Your Lawn: A Comprehensive Guide

Discover the best methods to treat mycelium on your lawn, ensuring a vibrant and healthy landscape. Learn how to remove mycelium effectively and prevent its reoccurrence.

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A lush, well-maintained lawn is a source of pride for homeowners. However, sometimes unwanted elements like mycelium can disrupt the beauty of your outdoor space. Mycelium, the root-like structure of fungi, can lead to the emergence of unsightly and potentially harmful mushrooms. But worry not! In this comprehensive guide, we will walk you through the process of treating mycelium on your lawn effectively, ensuring a green and inviting landscape.

How to Treat Mycelium On Your Lawn

How to Treat Mycelium On Your Lawn
Polo Fields Lawn Service

Mycelium is a common issue in lawns, especially in damp and shaded areas. Addressing this concern requires a combination of preventive measures and effective treatment methods. Let’s delve into the details:

Identifying Mycelium and Its Impact


Before jumping into solutions, it’s crucial to identify mycelium and understand its impact. Mycelium appears as a white, cobweb-like growth on the soil’s surface, often accompanied by mushrooms. While mushrooms can add a whimsical touch to your lawn, some species can be toxic to pets and humans. Moreover, mycelium can compete with grass for nutrients, potentially leading to thinning or discolored patches.

Regular Mowing and Proper Watering

Maintaining your lawn through regular mowing and proper watering can play a pivotal role in significantly reducing mycelium growth. When you mow your lawn at the recommended height, you prevent excess moisture from accumulating—a condition that fungi, including mycelium, thrive in. This proactive approach also contributes to a well-manicured appearance.

Moreover, embracing a practice of deep, infrequent watering proves beneficial in discouraging mycelium. By allowing the soil to dry out slightly between waterings, you encourage grass roots to delve deeper into the ground. This deep-rooted growth not only strengthens your lawn but also creates an environment that is less hospitable for mycelium to establish itself. As grass roots extend further below the surface, they naturally compete for nutrients, water, and space with the mycelium, further impeding its growth.

In essence, this dual strategy of appropriate mowing heights and well-timed watering forms a formidable defense against mycelium proliferation. It aligns with the philosophy of fostering a robust, resilient lawn that showcases your commitment to a healthy outdoor space.

Improve Drainage and Sunlight Exposure

Mycelium finds its optimal conditions for growth in areas that are damp, shaded, and suffer from inadequate drainage. To counteract this, it’s crucial to take proactive steps to create an environment that’s less favorable for mycelium development.

Start by addressing the drainage situation in your lawn. Proper drainage is essential to prevent the accumulation of excess moisture, which mycelium thrives on. Consider installing effective drainage systems that redirect water away from problem areas. By allowing water to flow freely and preventing stagnant pools, you create an inhospitable habitat for mycelium to establish itself.

Additionally, consider the practice of lawn aeration as a powerful tool in your mycelium prevention arsenal. Aeration involves perforating the soil with small holes, facilitating better air circulation, and encouraging the movement of nutrients and water throughout the root zone. This practice not only disrupts mycelium growth conditions but also offers a host of benefits for your grass.

Improved air circulation and increased sunlight penetration are the twin gifts of aeration. As you break up compacted soil, you create an environment where grass roots can access more oxygen, nutrients, and moisture. This shift in soil structure impedes the growth of mycelium and promotes overall grass health, leading to a greener, more vibrant lawn.

Apply Fungicides

When facing severe mycelium infestations, turning to fungicides can prove to be a potent solution. Fungicides are designed to target and control fungal growth, including the mycelium that might be overtaking your lawn. This step, while powerful, demands precision and adherence to guidelines to yield the desired results.

Begin by selecting a fungicide that is tailored to your specific lawn type. Different grass varieties may require different formulations, so it’s crucial to choose the right one to maximize effectiveness. Once armed with the appropriate fungicide, meticulous application is paramount. Follow the manufacturer’s instructions meticulously, as they provide valuable insights into dosage, timing, and application techniques.

The timing of fungicide application is a strategic move that can significantly influence its impact. Fungicides wield their highest efficacy when applied during the active growth phase of mycelium. This typically aligns with the cooler months, when mycelium activity is heightened. By targeting this period, you optimize the chances of effectively combating mycelium growth.

It’s important to underscore that fungicides are not a one-size-fits-all solution. While they can be potent tools, their proper usage demands careful attention. Overapplication or deviation from instructions can lead to suboptimal results or even environmental harm. To ensure the best outcome, consider seeking advice from lawn care professionals or experts in mycology.

Incorporating fungicides into your mycelium management strategy requires precision and a firm grasp of your lawn’s unique characteristics. When executed with care, this approach can prove to be a powerful ally in the battle against mycelium infestations, ultimately contributing to a thriving, fungi-free lawn that you can proudly showcase.

Raking and Removal

Engaging in the battle against mycelium doesn’t always necessitate elaborate solutions—sometimes, simplicity holds the key. One such straightforward method involves the humble act of raking, an action that can yield significant benefits in curbing mycelium growth.

When mycelium establishes its presence, it often forms an intricate network beneath the surface. Raking these areas can disrupt this network, unraveling the mycelium structure and exposing it to the elements. Air and sunlight, two formidable foes of mycelium, come into play here. Exposing mycelium to these natural elements impedes its growth, rendering it less viable and less likely to proliferate.

Equally important is the proper disposal of the raked material. To prevent the inadvertent spread of mycelium, ensure that the raked remnants are gathered and disposed of appropriately. Sealing them in a bag and discarding them in the trash can halt the potential journey of mycelium spores to new locations.

Embracing this simple yet effective technique of raking can be an integral part of your arsenal in managing mycelium growth. By exposing mycelium to the forces of nature and denying it the environment it thrives in, you contribute to a healthier, more resilient lawn that flourishes without the encumbrance of mycelium’s presence.


Q: What is mycelium, and why is it a concern for my lawn? 

A: Mycelium is the thread-like structure of fungi that grows beneath the surface of the soil. It often appears as a white, cobweb-like growth and can lead to the emergence of mushrooms. While some mushrooms are harmless, others can be toxic to pets and humans. Mycelium can also compete with grass for nutrients, potentially causing thinning or discoloration of your lawn.

Q: Can mycelium growth be prevented? 

A: Yes, there are preventive measures you can take to minimize mycelium growth. Proper lawn care practices such as regular mowing, proper watering, and improving soil health can discourage mycelium from taking hold. Adequate sunlight exposure and promoting good drainage are also key to preventing mycelium growth.

Q: How does proper mowing help prevent mycelium growth? 

A: Mowing your lawn at the recommended height helps prevent excess moisture accumulation, which mycelium thrives on. By keeping your grass at the appropriate height, you create a less favorable environment for mycelium to grow. Additionally, regular mowing helps maintain a healthy and vibrant lawn.

Q: What role does watering play in preventing mycelium growth? 

A: Proper watering is essential to prevent mycelium growth. Deep, infrequent watering encourages grass roots to grow deeper into the soil, making it more challenging for mycelium to establish itself. Avoid overwatering, as it can create a damp environment conducive to mycelium growth.

Q: How can I improve drainage in my lawn? 

A: Adequate drainage is crucial to preventing mycelium growth. Consider installing proper drainage systems, especially in areas prone to water accumulation. Aerating your lawn can also improve air circulation and water penetration, reducing the likelihood of mycelium developing.

Q: Are commercial fungicides effective in treating mycelium? 

A: Yes, commercial fungicides can be effective in treating mycelium, especially in cases of severe infestations. Choose a fungicide formulated for your specific lawn type and follow the manufacturer’s instructions carefully. It’s best to apply fungicides during the active growth phase of mycelium, typically in cooler months.

Q: Can raking help remove mycelium from my lawn? 

A: Yes, raking the affected areas can help break up the mycelium network and expose it to air and sunlight. This can inhibit its growth and make it easier to manage. Be sure to dispose of the raked material properly to prevent further spread.

Q: Are there any DIY remedies for treating mycelium? 

A: While there are some DIY solutions, they may not be as effective as commercial fungicides. Vinegar solutions, baking soda, and hydrogen peroxide are among the remedies that people have tried. However, their efficacy can vary, and it’s advisable to consult a lawn care expert before using DIY treatments.

Q: Is it possible to completely eliminate mycelium from my lawn? 

A: While complete elimination of mycelium may be challenging, following preventive measures and applying targeted treatments can significantly reduce its growth and impact on your lawn. Consistency in lawn care practices is key to achieving the best results.

Q: When should I consider consulting a professional for mycelium treatment? 

A: If your efforts to treat mycelium are not yielding results or if the infestation is severe, it’s advisable to consult a lawn care professional. They can assess the situation, recommend appropriate treatments, and provide expert guidance on restoring your lawn’s health.

Q: Can mycelium growth indicate underlying soil issues? 

A: Yes, mycelium growth can be an indicator of poor soil health. Compacted soil, inadequate aeration, and poor drainage can create favorable conditions for mycelium to thrive. Addressing these soil issues can contribute to a healthier lawn overall.

Q: Are all mushrooms that grow from mycelium harmful? 

A: Not all mushrooms that emerge from mycelium are dangerous, but it’s essential to exercise caution. Some mushrooms can be toxic if ingested by pets or humans. Removing all mushrooms from your lawn is a prudent step to ensure the safety of your family and pets. If you’re unsure about the edibility of a mushroom, it’s best to err on the side of caution and remove it.

Q: Can I use homemade solutions to treat mycelium? 

A: While some homeowners opt for homemade solutions to address mycelium growth, the effectiveness of these remedies can vary. Vinegar, baking soda, and hydrogen peroxide are some of the commonly used substances. However, it’s important to note that these remedies might not provide the same level of control as commercial fungicides. Consulting a professional or a knowledgeable expert in lawn care can help you make an informed decision.

Q: How often should I water my lawn to prevent mycelium growth? 

A: The frequency of watering depends on factors such as the type of grass, climate, and soil conditions. In general, it’s recommended to water your lawn deeply but infrequently. Aim for 1 to 1.5 inches of water per week, delivered in one or two watering sessions. This approach encourages deep root growth, making it more challenging for mycelium to thrive.

Q: Can I achieve a mycelium-free lawn? 

A: While achieving a completely mycelium-free lawn might be challenging, implementing preventive measures can significantly reduce its growth and impact. Consistent lawn care practices, proper drainage, and targeted treatments when necessary can help you maintain a healthy and vibrant lawn with minimal mycelium presence.

Q: Should I consult a professional for severe mycelium infestations? 

A: If your lawn is experiencing a severe mycelium infestation that doesn’t respond to your efforts, it’s advisable to consult a lawn care professional. These experts have the knowledge and experience to assess the situation accurately, recommend appropriate treatments, and guide you toward restoring the health and beauty of your lawn.

Q: Can mycelium indicate soil compaction? 

A: Yes, mycelium growth can be a sign of soil compaction, which restricts the movement of air, water, and nutrients in the soil. Compacted soil can create conditions conducive to mycelium growth. Aeration, which involves perforating the soil with small holes, can help alleviate soil compaction and improve overall lawn health.

Q: Is there a specific season when mycelium is more likely to grow? 

A: Mycelium growth can occur year-round, but it’s often more prevalent during cooler and damp conditions. In regions with distinct seasons, mycelium is more likely to be active in the fall and spring when temperatures and moisture levels are favorable for its growth. Being vigilant during these seasons and implementing preventive measures can help manage mycelium.

Q: Can I reuse grass clippings from mowing my lawn? 

A: While grass clippings can be used as mulch or compost in other areas of your garden, it’s generally advisable not to use them in areas with mycelium growth. Clippings can potentially contain mycelium spores, which may contribute to its spread. Proper disposal of grass clippings from affected areas can help prevent further infestations.

Q: Is it necessary to remove mushrooms from my lawn? 

A: Removing mushrooms from your lawn is recommended, especially if you have pets or children who might come into contact with them. While not all mushrooms are harmful, some can be toxic. Promptly removing mushrooms prevents accidental ingestion and reduces the chances of mycelium spreading further.

Q: How can I maintain a healthy lawn in the long term to prevent mycelium growth? 

A: To maintain a healthy lawn and prevent mycelium growth, practice consistent lawn care routines. This includes proper mowing, appropriate watering, fertilization, and soil testing. Address any underlying soil issues, improve drainage, and create an environment that supports strong grass growth. Regular maintenance and attention to your lawn’s needs will contribute to its vitality and resilience against mycelium and other challenges.

Q: Can mulching help prevent mycelium growth? 

A: Mulching can contribute to a healthy lawn by conserving moisture, improving soil structure, and reducing weed growth. However, if you’re dealing with mycelium issues, it’s important to choose your mulch carefully. Organic mulches like wood chips can create a damp environment that encourages mycelium growth. Consider using inorganic mulches or placing a barrier between the mulch and the soil to prevent excessive moisture accumulation.

Q: Can pets be affected by mycelium in the lawn? 

A: Yes, some species of mushrooms that emerge from mycelium can be toxic to pets if ingested. Dogs, in particular, may be curious and prone to eating mushrooms. To ensure the safety of your pets, promptly remove any mushrooms that appear on your lawn. Regularly inspect your yard for mushrooms and take preventative measures to discourage their growth.

Q: How can I ensure the effectiveness of fungicides in treating mycelium? 

A: To ensure the effectiveness of fungicides, follow the manufacturer’s instructions carefully. Apply the fungicide during the appropriate season, usually when mycelium is actively growing. Ensure thorough coverage of the affected areas, and consider repeating the application as recommended on the product label. If you’re unsure, consider consulting a lawn care professional for guidance.

Q: Is it necessary to remove the mycelium itself or just the mushrooms? 

A: Both the mycelium and the mushrooms should be addressed when managing mycelium growth. While removing the mushrooms prevents their potential ingestion, addressing the mycelium itself is crucial for long-term control. Mycelium serves as the root-like structure that gives rise to mushrooms, so removing it disrupts their growth cycle.

Q: Can composting contribute to mycelium growth? 

A: Composting can be a valuable practice for recycling organic materials and enriching your garden soil. However, avoid composting materials that might contain mycelium, such as mushroom scraps or grass clippings from areas with mycelium growth. Composting these materials could lead to the spread of mycelium spores when the compost is applied to other areas.

Q: Are there specific grass types that are more resistant to mycelium growth? 

A: Some grass types, like Bermuda grass and Kentucky bluegrass, are known for their resilience and resistance to mycelium growth. Choosing the right grass type for your region and lawn conditions can contribute to a healthier lawn that is less susceptible to mycelium infestations. Consult with local experts or lawn care professionals to determine the best grass variety for your area.

Q: Can over-fertilization contribute to mycelium growth? 

A: Yes, excessive fertilization, particularly with nitrogen-rich fertilizers, can create conditions that promote mycelium growth. Nitrogen encourages lush grass growth, which can create a favorable environment for mycelium. Follow recommended fertilization practices for your specific grass type and avoid over-fertilizing to prevent mycelium-related issues.

Q: What role does aeration play in preventing mycelium growth? 

A: Aeration involves perforating the soil to allow air, water, and nutrients to penetrate deeply. This practice can help improve soil structure, alleviate compaction, and promote healthy grass growth. By enhancing air circulation and water infiltration, aeration creates conditions that are less conducive to mycelium growth.

Q: Can mycelium spread from one lawn to another? 

A: While mycelium spores can spread, they are typically not as mobile as seeds. However, it’s still possible for spores to be transported by various means, including wind, water, and animals. To minimize the risk of mycelium spreading to neighboring lawns, promptly address mycelium growth and take preventive measures to discourage its development.

Q: How can I balance lawn aesthetics with mycelium prevention? 

A: Achieving a balance between a visually appealing lawn and mycelium prevention involves implementing proper lawn care practices. Regular mowing, appropriate watering, and soil improvement contribute to a healthy lawn that is less prone to mycelium growth. By focusing on overall lawn health, you can enjoy both a beautiful landscape and reduced mycelium presence.

Q: Are there any cultural practices that can help prevent mycelium growth? 

A: Yes, several cultural practices can aid in preventing mycelium growth. Avoid overwatering, as excess moisture creates favorable conditions for mycelium to thrive. Ensure proper soil drainage by addressing any areas of standing water. Maintain a healthy pH level in your soil through regular soil testing and appropriate amendments. These practices collectively create an environment that is less conducive to mycelium growth.

Q: Can mycelium growth be influenced by the type of soil in my lawn? 

A: Yes, the type of soil in your lawn can play a role in mycelium growth. Compacted soils with poor drainage provide an ideal habitat for mycelium to thrive. Improving soil structure through practices like aeration and adding organic matter can help create an environment that is less favorable for mycelium development.

Q: Can I use preventive fungicide applications to avoid mycelium issues? 

A: While some homeowners consider using preventive fungicide applications, it’s important to exercise caution. Overuse of fungicides can lead to the development of resistant fungal strains and harm beneficial soil organisms. Instead of relying solely on fungicides, focus on maintaining good lawn care practices and addressing issues like poor drainage and soil compaction.

Q: Are there any natural predators of mycelium that can help control its growth? 

A: There are no known natural predators of mycelium, as it is a fundamental part of the fungal life cycle. However, implementing practices that create an environment unfavorable for mycelium growth, such as proper aeration and drainage, can help manage its presence. Fostering a healthy ecosystem in your lawn can also contribute to balanced fungal populations.

Q: Can applying lime to the soil prevent mycelium growth? 

A: Lime can help adjust soil pH and improve soil structure, but its direct impact on mycelium growth is limited. While maintaining an optimal pH level can contribute to overall lawn health, it’s important to focus on a holistic approach to lawn care that includes proper mowing, watering, and soil improvement.

Q: Can lawn diseases be mistaken for mycelium growth? 

A: Yes, some lawn diseases can lead to symptoms that resemble mycelium growth. For example, fairy ring disease can cause circles of dark green grass surrounded by rings of mushrooms. If you’re unsure about the cause of lawn issues, consider seeking the advice of a lawn care professional who can accurately diagnose the problem and recommend appropriate solutions.

Q: Can mycelium growth be more prevalent in shaded areas? 

A: Yes, mycelium growth is often more prevalent in shaded areas with reduced sunlight and airflow. Shaded conditions create a damp environment that mycelium thrives in. To address mycelium growth in shaded areas, focus on improving air circulation, trimming back overhanging branches, and promoting proper drainage.

Q: How can I monitor my lawn for signs of mycelium growth? 

A: Regular monitoring is essential to catch mycelium growth early. Inspect your lawn for any signs of white, cobweb-like growth on the soil surface, along with the emergence of mushrooms. Promptly address any areas that show signs of mycelium and implement preventive measures to avoid its spread.

Q: Can overseeding help prevent mycelium growth? 

A: Overseeding involves spreading grass seed over existing turf to promote thicker grass growth. While overseeding can contribute to a healthier lawn, it may not directly prevent mycelium growth. However, a denser grass cover can create conditions that are less favorable for mycelium to establish itself.

Q: What should I do if my lawn experiences recurring mycelium growth? 

A: If mycelium growth continues to be an issue despite your efforts, consider seeking the expertise of a lawn care professional. They can assess the underlying factors contributing to the problem, provide tailored solutions, and help you develop a long-term strategy to maintain a mycelium-free lawn.

Q: Can mycelium growth impact the overall appearance of my lawn? 

A: Yes, mycelium growth can impact the appearance of your lawn by creating white, web-like patches and producing mushrooms. These patches can appear unsightly and disrupt the uniformity of your lawn. By addressing mycelium growth and implementing preventive measures, you can maintain a lawn that is both healthy and visually appealing.

Q: Can mycelium growth affect the health of my grass? 

A: Yes, mycelium growth can potentially affect the health of your grass. Mycelium competes with grass for nutrients and moisture, which can lead to thinning or discolored patches. Additionally, the presence of mycelium can indicate underlying soil issues such as compaction or poor drainage. Addressing mycelium growth is crucial for maintaining a healthy and thriving lawn.

Q: Are there any environmentally friendly ways to control mycelium growth? 

A: Yes, there are environmentally friendly approaches to managing mycelium growth. Practices such as proper lawn care, improving soil health, and promoting biodiversity can contribute to a balanced ecosystem that is less conducive to mycelium development. These approaches align with sustainable lawn management and minimize the need for chemical interventions.

Q: Can mycelium growth spread to other plants in my garden? 

A: While mycelium is specific to fungi, it can indirectly impact other plants in your garden. For example, if mycelium growth is associated with damp conditions or poor drainage, these factors can affect the health of nearby plants as well. By addressing mycelium growth and creating optimal growing conditions, you can promote the overall health of your garden.

Q: Are there any signs that mycelium growth is subsiding? 

A: Signs that mycelium growth is subsiding include a reduction in the white, cobweb-like appearance on the soil’s surface and a decrease in the number of mushrooms emerging from the mycelium. Additionally, the overall health and appearance of your grass may improve as mycelium growth diminishes.

Q: How can I effectively dispose of mycelium-infested material? 

A: Proper disposal of mycelium-infested material is crucial to prevent its spread. Gather the affected grass, soil, or debris and seal it in a plastic bag before disposing of it in the trash. Avoid composting or using the material in other areas of your garden, as this could lead to the introduction of mycelium spores in new locations.

Q: Can mulch contribute to mycelium growth in flower beds? 

A: While mulch can provide numerous benefits to flower beds, organic mulches like wood chips can create a favorable environment for mycelium growth if they remain consistently damp. Consider using inorganic mulch or placing a barrier between the mulch and the soil to discourage excessive moisture accumulation and potential mycelium development.

Q: Can mycelium growth be exacerbated by heavy rainfall? 

A: Yes, heavy rainfall can contribute to mycelium growth, particularly in areas with poor drainage. Excess moisture creates conditions that are favorable for mycelium to thrive. Adequate drainage, proper grading, and well-designed landscape features can help mitigate the impact of heavy rainfall on mycelium growth.

Q: How long does it take to see results after applying fungicides? 

A: The timeframe for seeing results after applying fungicides can vary depending on factors such as the type of fungicide used, the severity of the infestation, and environmental conditions. Some fungicides may require several weeks to take full effect. It’s important to follow the manufacturer’s instructions and be patient as you monitor the progress.

Q: Can mycelium growth be affected by the pH of the soil? 

A: Yes, the pH of the soil can influence mycelium growth. Mycelium tends to thrive in slightly acidic to neutral pH ranges. Maintaining a balanced pH through soil testing and appropriate amendments can create an environment that is less conducive to mycelium development.

Q: How can I prevent mycelium growth from recurring? 

A: Preventing recurring mycelium growth requires consistent maintenance and vigilance. Continue implementing proper lawn care practices, improve soil health, and address underlying issues such as poor drainage. Regularly monitor your lawn for any signs of mycelium growth and take prompt action if it reappears to prevent its spread.

Q: Can mycelium growth impact the resale value of my property? 

A: While mycelium growth itself may not directly impact the resale value of your property, it can affect the overall aesthetics and health of your lawn. Curb appeal plays a significant role in property value, and a mycelium-infested lawn can detract from the visual appeal of your home’s exterior. Addressing mycelium growth can contribute to a well-maintained and attractive outdoor space.


Maintaining a mycelium-free lawn requires a combination of proactive measures and targeted treatments. By identifying mycelium, improving drainage, practicing proper lawn care, and using appropriate fungicides, you can enjoy a vibrant and healthy landscape. Remember, consistency is key when it comes to preventing and treating mycelium growth. So, roll up your sleeves, follow these tips, and watch your lawn thrive!