Fungus and Dry Rot, Many types of fungus occur on materials other than wood. Mildew is one example. Only where there is food, dampness and temperatures between 60 and 90 degrees, can fungus grow. Dry rot is the decay of wood caused by certain fungi that carries water into the wood that they infest. Advanced stages of dry rot can cause wood to lose its structural integrity and can give the wood a crumbly appearance. Every year billions of dollars are spent to repair the damage caused by dry rot.
Treatments, To control a decay fungus infection, one must eliminate the source of the moisture and the infected wood must be removed. In most cases, when an invisible fungus infection comes visible the wood has been seriously weakened. A dried up fungus infection will come again if moisture reoccurs.