Symptoms Three different main courses can be distinguished: 1. A mild, local reaction manifests as burning, pain, itching, redness of the skin, and formation of a large wheal. The symptoms improve within 4-6 hours. 2. in a moderately severe course, there is a more severe local reaction, with symptoms such as reddening of the skin … Insect Bites
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. … Wasp Sprays
Products Tetramethrin is included in some insect sprays and wasp sprays in many countries. It is often combined with other insecticides. Medicines containing tetramethrin are not commercially available. Structure and properties Tetramethrin (C19H25NO4, Mr = 331.4 g/mol) is a dioxotetrahydroisoindole derivative and belongs to the type I pyrethroids. These are synthetically produced, chemically more stable … Tetramethrin
