Insect Control with the Fumigant Vikane

Scientists with the Conservation Analytical Laboratory investigated the potential interaction between Vikane and proteins and dyes. For proteinaceous materials—silk, leather, and gelatin—the methods of investigation were amino acid analysis, colorimetric measurements, tensile strength, pH, and elemental analysis before and after accelerated aging. For dyes, UV/vis spectrophotometry and TLC were employed.

While little to no visible damage to materials was noted when Vikane was properly used, scientists concluded that the selection criteria for a fumigant must be based on an in-depth analysis of its possible effect on the physical and chemical properties of exposed artifacts. The results indicated that there are some possibilities for damage to the materials that should be considered before fumigation is performed. Additionally, it was determined that documentation of fumigation should be recorded for each object so that future treatments take the fumigation history into account.

Related research conducted in collaboration with the University of Florida examined the efficacy of sulfuryl fluoride against adult, larvae, and eggs of carpet beetles. Methyl bromide has been an effective fumigant for dermestid beetles; however, its potential for producing malodorous compounds in some animal products is unsatisfactory for museum application. Vikane has proven to be a likely substitute, yet little was known of its efficacy for dermestids. This study produced information not just for the museum community but for all users of space fumigants.

Canadian Conservation Institute, the Conservation Analytical Laboratory of the Smithsonian Institution, the University of Florida