Kill Mushroom Fungus in Garden Beds & Yards

The best way to prevent and control mushroom disease in your garden is by combining cultural practices and fungicides. The most important thing you can do is to keep your soil healthy. Healthy soils are less likely to harbor pathogens that cause diseases like mushroom rot.

If you have an established garden bed or yard, you should not need to use chemicals to control this pathogen. However, if you planted new plants, you will want to apply some fungicide before the mushrooms start growing. Read this article to learn more.

What is Mushroom Fungus?

Mushroom fungus is a fungus that typically grows in moist, shady areas. The fungi produce spores that can spread through the air and infect people and animals. This fungal infection causes symptoms such as black spots on leaves, stems, and fruits. In severe cases, the infected plant may die. Mushrooms grow on decaying wood found in forests, parks, gardens, and other outdoor spaces.


Mushroom poisoning can cause various symptoms, including nausea, vomiting, diarrhea, abdominal pain, and fever. In severe cases, it can lead to organ failure and death. Symptoms usually appear within 24 hours after exposure.


Mushroom poisoning is caused by consuming mushrooms that contain toxins. These toxins can be produced by the mushroom itself or by bacteria or other organisms living on it. Some types of mushrooms are poisonous, while others are safe to eat.


Mushroom fungi thrive in damp, dark environments. They are often found in forests or near trees and shrubs. If enough moisture is present, mushroom fungi can also be found in gardens, lawns, or even in your home.

What are the different types of Mushroom fungi?

Mushroom fungi come in many different shapes and sizes. Some are small and delicate, while others are large and thick. The most common type of mushroom fungus is the white button mushroom. Other types include the oyster mushroom, shiitake mushroom, portobello mushroom, and more. There are many types of mushroom fungal infections. Some of these include:

  • Agaricus bisporus (common white button mushroom)
  • Boletus edulis (edible bolete)
  • Coprinus comatus (shaggy ink cap)
  • Flammulina velutipes (brown-capped chanterelle)
  • Lactarius deliciosus (delicate milkcap)
  • Lepista nuda (white false morel)
  • Panaeolus subbalteatus (pink panaeolus)
  • Psathyrella candolleana (candle cup)
  • Tricholoma matsutake (snowbank Tricholoma)

How does Mushroom fungi spread?

The primary reproduction method for most fungi, including mushrooms, is spores. Spores are tiny, single cells that can travel through the air and water to find new places to grow. They germinate and grow into new fungi when they land in a suitable environment.

Water: Many species of mushrooms also reproduce via microscopic threads called hyphae. Hyphae can break off from the main body of the fungus and float away in water droplets. When these hyphae land in a suitable environment, they grow into new fungi.

Animals: Some mushrooms reproduce by using animals to spread their spores. For example, the fly agaric mushroom (Amanita muscaria) produces small red caps with white spots that are attractive to flies. The flies eat the caps and then spread the spores in their droppings as they fly to other areas, looking for food.

People: People can get mushroom fungal infections from contaminated foods or drinks. You could become ill if you have eaten mushrooms that were not properly cooked, washed, or stored. You should avoid eating wild mushrooms unless you know exactly where they came from and how they were prepared. It’s best to cook all fresh mushrooms before eating them.

Plants: Mushrooms can also infect plants. This happens when an infected plant releases spores into the air. Then, people breathe in the spores and become sick.

How can you prevent Mushroom Fungus from spreading?

1. Sanitize all of your gardening tools before and after use. This will help to prevent the spread of any spores that may be on your tools.

2. If you see any mushroom fungus growing in your garden, remove it immediately. Do not compost it, as this will only spread the spores.

3. Avoid walking through areas where the mushroom fungus grows, which can also spread the spores.

4. Keep your garden free of debris and dead leaves, as these can provide a perfect breeding ground for mushroom fungus spores.

5. Avoid over-watering your plants, as this can encourage the growth of mushroom fungus.

6. Use mulch around your plants to reduce evaporation and retain moisture.

7. Clean up fallen leaves regularly so they don’t become an ideal place for mushroom fungus to grow.

8. Make sure that you dispose of your garbage properly. For example, garbage cans should never be left open, allowing insects to enter and feed on the contents.

9. Don’t let pets roam freely in your yard, as they could carry mushroom fungus spores back indoors.

10. Wash your hands frequently when working outdoors, as this will help to prevent the transfer of any spores that might be present.

11. Be careful when handling wild mushrooms, as they can contain harmful bacteria or viruses.

12. Always wash produce thoroughly before eating.

How can you treat Mushroom fungi in Garden Beds & Yards?

Mushroom fungus is usually treated with fungicides. These chemicals kill the fungus but do not harm humans or animals. Therefore, they are safe for children and pets.

1. Apply a thick layer of mulch around your plants. Mulching helps keep weeds down and reduces soil exposure to sunlight. It also prevents the buildup of excess moisture, which encourages the growth of mushrooms.

2. Spray your plants with a solution containing copper sulfate. Copper sulfate kills the fungus without harming the plant. You can buy copper sulfate at home improvement stores. Follow the directions carefully.

3. Sprinkle some baking soda around your plants. Baking soda has a mild acidity that discourages the growth of many fungi.

4. Mix one part bleach with four parts water. Bleach contains chlorine gas, which is toxic to most organisms. However, it does have antifungal properties. Soak your plants in this mixture until the roots begin to rot. Then rinse them well with fresh water.

5. Pour some dish soap onto a sponge and soak it in warm water. Squeeze out the excess liquid and apply it directly to the affected area. The soap will break down the cell walls of the fungus, killing it.

6. Dilute household ammonia (one teaspoon per gallon of water) and spray it on infected plants. Ammonia is highly effective against fungal infections.

7. Mix equal amounts of hydrogen peroxide and water. Hydrogen peroxide is a powerful disinfectant. Mix two parts water and three parts hydrogen peroxide to make hydrogen peroxide. This mixture will last for several weeks if stored in a sealed container.

8. Mix 1/4 cup of vinegar with 2 cups of hot water. Vinegar is acidic and can cause damage to plants. But it is very effective against certain kinds of fungi.

9. Mix one tablespoon of salt and one quart of boiling water. Salt is an excellent way to discourage the growth of mushrooms. If you use too much salt, however, it may burn your plants.

10. Use homemade compost tea by mixing one part compost with five parts water. Compost tea is made from organic matter such as grass clippings, vegetable scraps, manure, and other garden waste. Add enough water to cover the material completely. Let the mixture sit for 24 hours. Then, strain the mixture through a fine mesh strainer into another container. Repeat this process every few days until the compost tea no longer smells like rotting vegetation.

11. Make a natural fungicide by adding one-half cup of borax to one gallon of water. Borax is a mineral compound found naturally in volcanic rock. Borax is used to control various insects and diseases in plants.

12. Mix one part white vinegar with nine parts water. White vinegar is acidic and can be harmful to plants. But it works well against mushroom fungus.

13. Mix one part baking soda with eight parts water. Baking soda is alkaline and can prevent the spread of the fungus.

14. Mix one part sulfuric acid with ten parts water. Sulfuric acid is corrosive and should only be handled with gloves. It is also dangerous to animals and people who come in contact with it.

15. Mix one part hydrogen peroxide with five parts water. Hydrogen peroxides are extremely strong oxidizers. They can destroy any organic materials they touch.

What are the consequences of ignoring Mushroom fungi?

Mushroom fungi are a type of fungi that can be found in soil, on plants, and in decaying matter. It is often mistaken for a plant because it has a stem and a cap.

What it does:

Mushroom Fungus feeds on organic matter and can cause problems for plants by competing with them for nutrients. It can also cause diseases in humans and animals if ingested.

How can you safely remove Mushroom fungi?

  • Wear gloves when handling the mushroom.
  • Do not touch your face while handling the mushroom.
  • Wash your hands thoroughly after handling the mushroom.

Tools needed:

  • A sharp knife
  • A cutting board
  • A bowl of water
  • A brush

Steps to take:

  • Cut off the mushroom’s stalk.
  • Place the mushroom in a bowl of water.
  • Brush away dirt and debris from the mushroom.
  • Use a knife to cut out the gills.
  • Dry the mushroom with paper towels.
  • Store the dried mushroom in an airtight container.

Frequently Asked Questions [FAQs]

1: How Does Mushroom Fungus Develop And Spread?

Mushroom fungus, or fungal disease, develops and spreads through spores. The fungus produces these spores and can be carried by wind, water, insects, animals, and even humans. When conditions are favorable, spores germinate and develop into fungal growth, which can then spread rapidly, especially in moist and humid environments.

2: What Are Some Preventive Measures To Avoid Mushroom Fungus?

To prevent mushroom fungus, it is crucial to create an environment that is not favorable for its growth. This involves maintaining proper air circulation and reducing moisture levels, as fungus thrives in damp conditions.

Additionally, avoiding overwatering or creating standing water in gardens, removing fallen leaves and debris, and pruning dense vegetation can help prevent fungal growth.

3: What Are Some Organic Methods To Kill Mushroom Fungus?

Organic methods to kill mushroom fungus involve using natural ingredients and techniques. Some effective options include neem oil, a natural fungicide spraying on affected areas, and a mixture of baking soda and water, which can be applied as a foliar spray. Another option is a compost tea solution made with beneficial bacteria and fungi that can help suppress fungal growth.

4: What Are Some Chemical Options To Kill Mushroom Fungus?

Chemical options to kill mushroom fungus include fungicides specifically designed for fungal diseases. Before using any chemical product, it is important to read and follow the instructions carefully to ensure proper application.

Common fungicides for controlling fungal diseases in gardens include copper-based products, sulfur-based products, and systemic fungicides like azoxystrobin or chlorothalonil.

5: Can I Prevent Mushroom Fungus Without Using Chemicals?

Yes, it is possible to prevent mushroom fungus without using chemicals. You can greatly reduce the risk of fungal diseases by implementing good gardening practices and maintaining a healthy garden environment.

This includes proper plant spacing to allow air circulation, regular pruning to increase sunlight penetration, avoiding overhead watering, and timely removal of diseased or dead plant material. Additionally, using natural remedies like compost tea or neem oil can prevent and control fungal growth.


Maintaining good soil conditions is the best way to keep your garden healthy. Good drainage helps prevent disease-causing bacteria and other harmful microorganisms from growing. When planting new seeds, always choose well-drained soils. Avoid over-fertilizing and overwatering. Use mulch to retain moisture and protect roots. Remove weeds regularly so they don’t compete with your crops for nutrients.

About the Author

Virginia E. Hayes is a gardening enthusiast who loves to write about gardening tools, safety issues, and ways to keep gardens clean and safe. With her vast experience in gardening, she provides valuable insights and tips to help fellow gardening enthusiasts to enhance their gardening experience. Her passion for gardening and writing has made her a sought-after author in the gardening community.

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