From Longman Dictionary of Contemporary Englishinfestin‧fest /ɪnˈfest/ verb [transitive] 1 HBLOT/LARGE NUMBER OR AMOUNTif insects, rats etc infest a place, there are a lot of them and they usually cause damagebe infested with something The kitchen was infested with cockroaches.shark-infested/rat-infested etc shark-infested waters2 if a place is infested with things or people you do not want, there are too many of them therebe infested with something an area infested with holiday homesGrammar Infest is usually passive. —infestation /ˌɪnfeˈsteɪʃən/ noun [countable, uncountable]→ See Verb table
Examples from the Corpus
infest• mosquito-infested swampsbe infested with something• I had reservations about Monte Cristo, which is said to be infested with adders.• Researchers have found the soil to be infested with around 500 grubs per square metre instead of the usual five or so.• The house she lives in is infested with cockroaches, and damp is coming through the ceiling.• Fish do scratch, and this does not mean they are infested with gill flukes.• The entire house was infested with mice which meant that everybody was in constant battle against their droppings and their smell.• After eight years of a Republican governor, state government was infested with Republicans.• Your shop is infested with rodents.• And what is more heinous their armies are infested with smallpox!Origin infest (1500-1600) French infester, from Latin, from infestus “angry and unfriendly” 