A new study digs into the pros and cons of two different methods for testing potential bed bug repellents: a harborage test and a barrier test. Repellency results can differ when bed bugs are searching for shelter versus when they are searching for a bloodmeal.
A bed bug infestation hadn't been seen in Costa Rica since the late 1990s—until now. Researchers at the University of Costa Rica have confirmed that specimens collected from a home near San Jose in 2017 are indeed bed bugs and, surprisingly, of the temperate-zone species Cimex lectularius and not the tropical bed bug, Cimex hemipterus.
Boric acid dust is a common tool in urban pest management, but a new study shows external exposure is minimally effective against bed bugs. When bed bugs ingest boric acid, though, few survive.
Travelers' luggage is an attractive harbor for bed bugs, which then hitch a ride to new locations. In the search for effective bed bug repellents, researchers at Connecticut Agricultural Experiment Station and Bedoukian Research, Inc., have found that DEET as well as several naturally derived compounds could protect luggage from attracting stowaway bed bugs.