The purpose of this paper is to review the literature on fungus activity to determine what is relevant to its prevention and eradication on cultural property. The literature shows the need to consider all aspects of the life cycle. Presently used prevention, control, and eradication measures usually consider only the vegetative growth of the fungus. The conidia (asexual spore) activation and germination are precursors to vegetative growth and must be considered in these measures. The literature also shows; that in reference to conidia activation and germination, some conservation treatments may be putting artifacts in jeopardy of future fungi activity and that the absolute moisture content of materials is as important as the relative humidity or their water activity. The imformation is presented as a basis for discussion, bearing in mind that if humidity and temperature are controlled no dignificant growth will occur even if spores are activated. -- CAL