Consumer Insecticide Sprays Ineffective Against German Cockroaches

New research reveals that common household sprays fail to control resistant cockroach populations, raising concerns over public health and regulatory standards.

Study shows less than 20% of roaches die after 30 minutes of exposure to common sprays.
German cockroaches have developed resistance to pyrethroid insecticides widely used in consumer products.
Residual effects of sprays are weak, with some roaches surviving direct application.
Researchers call for regulatory changes to include testing on resistant cockroach populations.
Effective alternatives include gel baits and professional pest control services.