Products
Wasp sprays are available in pharmacies and drugstores from manufacturers including Finito, Gesal, Ketol, Martec, Recozit and Neocid.
Effects
The sprays contain insecticides such as tetramethrin, permethrin, dichlorvos and chlorpyrifos, which kill wasps within a short time. They are also effective against hornets, blind flies and bees.
Application
According to the directions for use. Application is possible outdoors or in adjoining rooms (e.g. garage). It is best to treat whole nests early in the morning or in the evening, as this is when most insects are present. It is recommended to wear protective clothing and to spray from a distance.