Black mold tends to grow in patchy / clumped areas. Best way to remove it is to dispose of the removable items or cut out that area of wallboard. Smaller areas less than 5 SF and there are no health issues to worry about are often easily addressed this way.
About Victor Coppola
Victor Coppola has over 20 years in diverse environmental and strategic planning experience in the environmental and land development industries. Look to Victor for eco-friendly consulting and installation services to developers of commercial, industrial and residential projects; private clients; governmental agencies; allied professionals and individuals targeted for enforcement of perceived environmental violations.