Woolen carpeting has been protected against carpet beetle and clothes moth damage in the home by on-location oil-solution spray applications of DDT for at least 2 decades. DDT for protecting woolens against insect damage was suggested as early as 1944 (Anonymous 1944) and was used extensively for this purpose until 1969 when some of its recommended uses were canceled. PerthaneĀ® (a mixture of 1,1-dichloro-2,2-bis(p-ethylphenyl)ethane (95%) and related reaction products (5%)) and StrobaneĀ® (terpene polychlorinates (65% chlorine)) had been recommended for other mothproofing applications for many years, and in 1969 it was suggested that they be recommended as replacements for DDT for carpet spray treatments. However, the pest-control industry did not favor use of these compounds for on-location spray treatments for woolen carpets. Members of the industry indicated that because dust has a tendency to adhere to woolen fibers treated with these insecticides there would probably be rapid soiling of carpets treated with them. Therefore, tests were conducted at the Savannah Laboratory of the Stored-Product Insects Research Branch with these insecticides and 4 other compounds to determine their suitability as on-location carpet treatments.