For the past 3 years we have used Vapona Insecticide Pest Strips for the control and prevention of museum pests in insect collections. During this time no museum pests have attacked museum specimens in the presence of Vapona, 2,2-dichlorovinyl dimethyl phosphate. The yellow plastic strips (6.3 cm × 25.4 cm) were cut into pieces of approximately 2 cm by 6.3 cm and placed in wooden Schmidt boxes and cardboard insect boxes of a similar size. New strips are added to insect boxes once a year. As of this writing we have not seen any indication of color change or deposits on the museum specimens exposed to DDVP. This material has also been used to protect herbarium specimens and vertebrate study skins. The manufacturer of Vapona resin strips has indicated that 1 resin strip of 161 cm2 (25 in.2) should fumigate 28.27 m3 (1000 ft3) of room space. A Schmidt box contains .03528 m3 (1.26 ft3). Therefore, according to the recommendations of the manufacturer a piece of Vapona resin strip containing 0.2 cm2 should theoretically fumigate an insect box; the use of 6.45 cm2 (1 in.2) would be over 32 × the required amount.
Document Type: Research Article
Publication date: January 1, 1969
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