A small number of mosquitoes—typically five—are confined in a plastic cone sealed against the treated surface, exposing them to contact for a fixed period (3 minutes for nets, 30 minutes for walls). Knockdown is recorded at 60 minutes and mortality at 24 hours.

Insect kits or field entomological kits are single point of source for all kinds of insect collection accessories and tools for collection, storage, recording and analysing insects.