The main problem with controlling infestations of cockroaches is ensuring that enough insecticide gets to a sufficiently large proportion of the population to effect control. Cockroach infestations have been treated with insecticidal sprays, dusts, gels, sand baits, etc. Cockroach bait may consist of simple poisons, killing from direct feeding only, to the latest insecticides which use delayed transferred toxic action, which can reach a sufficiently high proportion of the cockroach population to achieve effective control in a short period of time.
