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| Fungi
are made of single or multi-cellular threads (Hyphae). They
form the mycelium. With the hyphae, the fungus invades the wood
and extracts nutrients, importantly, cellulose, polysaccharides,
and lignin. Carbohydrates, fats, and proteins that the fungus
also needs can be found only in the healthy cells of the tree.
Enzymes make it possible for the fungus to extract these substances
from the cells. Fungi are aerobic life forms and therefore need
oxygen. The fungus needs water because of physiological reasons.
Light is also needed by most fungi in order to form buds. Wood
destroying fungi can survive some dry spells without damage.
Warm and humid weather is optimal for them. |
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| Fungi
penetrate a tree through wounds. One can often see that a tree
is affected with fungi when that fungus has started to sprout
buds. Wood destroying fungi diminish the stability and endanger
the tree. The process of the destruction of the wood until the
death of the tree can take years. The length of time is dependent
on the type of tree and fungi. Avoid wounds to the tree or the
roots (lawn mower, digging, swings, etc.). Wood decomposing
fungi attack a host plant in three different ways. |
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White
Rot: Through white rot, lignin decomposes. The wood becomes
lighter in color, softens, and frays. Swelling causes the volume
of wood to increase. |
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Brown
Rot: Through brown rot, the cellulose decomposes, not the
lignin. The wood becomes brown and breaks into pieces until
it turns into a brown dust. Image |
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Molding
Rot: Molding
rot is similar to brown rot. Additionally, it also decomposes
very sodden wood. An expert should be contacted if your tree
has wood decomposing fungi. |
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| An
expert should be contacted if your tree has wood decomposing
fungi. |
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| Removing
the fruiting body will not help your tree. |
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