The true Dry Rot fungus is the more serious requiring fast specialist action to avoid extensive damage. It is malignant and will spread even through thick walls in search of timber to attack.Timber affected by dry rot is brown, dry and brittle with cuboidal fractures and can be crumbled by hand.
It requires over 20% moisture level for spore germination. When dry rot occurs, fine greyish hyphae strands develop from the spore spreading to form mycelial growth which varies from grey to pure white in wet conditions.
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