How far can an adult beetle travel?
An adult EHB beetle may only travel a minimal distance if its food source has not yet been exhausted, which can take more than 10 years. A major concern is that migration of original EHB populations from the hills region to Gnangara is considered likely, as DNA testing has indicated populations to be closely related, and there is speculation that further migration is possible. This is due to prevailing easterly and south-easterly winds in Perth summers, which coincide with the EHB flight season, and the presence of pine tree host bridges (some infested) between the two areas.
