Fungal Control (Source)
Tree Bracket Fungi (Source)
A type of fungus that attacks the heartwood of living trees. As given from the name, you can usually find them sticking out of the tree trunk like shelves. The fungus spreads and generally becomes very tough and sturdy.
Tree bracket fungus is a disease that attacks the tree's heartwood, eventually weakening the trunk until it loses structural integrity and falls down. Once a tree has been infected it is almost impossible to get rid of! Even though there is nothing to do once the tree has been infected, there are steps to prevent it:
Fungi prefer moist and wet environment because these conditions allow fungal spores to thrive and multiply, so make sure your trees grow well away from bodies of water.
Birds Nest Fungi (Source)
Birds nest fungi is a tiny fungus that grows on the floor. This fungi decomposes organic substrates causing it to play an important role in the soils integrity and the cycle of the soils nutrients.
On top of the important role birds nest fungus plays, they are also completely safe for other plants. Even though this type of fungi is not the most appealing, it can be beneficial to its surroundings.
To control the spread of fungi to other areas of your backyard or garden, you can rake the soil which disturbs the fungi and slow down its growth. You can also lay mulch in areas where you do not want fungi to grow as it prevents the fungi from attaching to the debris underneath the soil.
Tree Lichen (Source)
Tree lichen is a symbiotic relationship between fungus and algae. In this relationship, both the fungi and algae benefit greatly off one another. The fungi is especially good at trapping and collecting moisture for the algae. In return, the algae helps the fungi create food though photosynthesis.
Tree lichen is not harmful because it does not penetrate deep enough through the tree to cause any damage.
Canadian Advocates Against Pesticides