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Honey Fungus: A Comprehensive Guide for Gardeners

by Donna
3 minutes read

Honey Fungus: A Guide for Gardeners

What is Honey Fungus?

Honey fungus is a type of fungus that can cause serious problems in gardens. It gets its name from the honey-colored mushrooms that it produces. These mushrooms are often seen in late summer and autumn.

Honey fungus is actually a group of several different species of fungi that belong to the Armillaria genus. These fungi spread underground and attack the roots of woody and perennial plants. They can cause die-back, wilting, and eventually death of the affected plants.

How to Identify Honey Fungus

Honey fungus can be difficult to identify because it often doesn’t produce mushrooms above ground. However, there are some symptoms that you can look for:

  • Die-back of枝条or branches
  • Pale foliage
  • Lack of flowers
  • Bleeding or cracking bark
  • Eventual death of the plant

If you suspect that your plant may be infected with honey fungus, you can peel back some of the bark at ground level. If you see white strings of mycelium growing between the bark and the wood, this is a sign of infection. Other symptoms include bootlace-like fungal growths called rhizomorphs, which are red or purple at first and then turn black.

How Honey Fungus Causes Problems

Honey fungus spreads underground through its rhizomorphs. These rhizomorphs can extend up to 30 meters from the original source of infection. When they come into contact with the roots of other plants, they can infect them and cause them to decline and die.

There are different species of honey fungus, and some are more aggressive than others. The more aggressive species can kill healthy plants, while others may only cause problems for plants that are already weakened.

How to Control Honey Fungus

There are no chemical controls for honey fungus. The only way to control it is to remove the infected plant and all of its roots. This should be done as soon as possible to prevent the fungus from spreading to other plants.

Here are some other tips for controlling honey fungus:

  • Keep your plants healthy and well-watered. Healthy plants are less likely to be infected by honey fungus.
  • Avoid planting trees and shrubs too deeply. Plants that are planted too deeply are more likely to be infected by honey fungus.
  • Remove any dead or diseased plant material from your garden. This will help to reduce the risk of honey fungus spreading.
  • If you find honey fungus in your garden, map out the area where it is located. This will help you to avoid planting new plants in that area.

Honey Fungus and the Law

There are no laws that specifically address honey fungus. However, it is considered to be a nuisance, and it is your responsibility to prevent it from spreading to your neighbor’s property.


Honey fungus can be a serious problem for gardeners. However, by following the tips in this article, you can help to control and prevent this fungus from damaging your plants.

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