Disinsection. In order to protect fabrics from insect attacks, fungicides are placed in cabinets and display cases or sprayed with them. Of course, the basic protection against pests is ensured by regular harvest control, maintaining cleanliness and appropriate environmental conditions, airing. Textiles newly admitted to museums must be disinfected.
Insecticides placed in shop windows include:. p-dwuchlorobenzen (Molotox) more effective than the popular naphthalene and camphor. In order to destroy the larvae, it is necessary to sprinkle approx 0,75 kg already 1 m3. Despite the strong narcotic effect, this agent is considered harmless to humans. Insecticidal aerosols containing, among others, are used for spraying. chlorinated hydrocarbons or organophosphorus compounds, such as Molozol, Insektosol or Aerosekt. However, it is better to avoid spraying them directly on historic fabrics. Of the fluorine compounds, sodium fluoride or sodium fluorosilicate is used. 0.5% is also applied with a sprayer. an ethanolic solution of pentachlorophenol. In the 1960s, a concentrate of pyrethrum plant extract and DDT was used quite often (dichlorodiphenyltrichloroethane), dissolving in the amount of 50 g of each in a liter of kerosene, as a highly effective contact poison.
