The word "infest" is correct and usable in written English.
It can be used to refer to a situation in which a large number of animals or insects occupy a space and cause damage or disruption. For example, you can say, "An infestation of rats had been plaguing the neighborhood for weeks before the exterminator was finally called."
The usual lopsided Bedford trucks, bullock carts, auto rickshaws, slaloming hatchbacks and scooter swarms that infest every highway I have ever travelled on in India were conspicuous by their absence.
The Wire has not faltered for a moment in four vaguely themed seasons that have tackled the pointlessness of the war on drugs, the bureaucracy and corruption that infest both the police force and drug-dealing gangs, class war against the labour unions, and the city's dysfunctional public schools system.
In this MP's view, the pledge to oppose higher fees was a last relic of the sort of populism that used to infest Lib Dem manifestos back when the party ran no risk of tasting power.
Mr Lovelock thinks it is probably too late anyway, and that Gaia will shake herself and be rid of the plague of humans that now infest her skin.
Bergy bits, growlers and brash ice infest many bays.
Robert Koestler, a conservation scientist at the Metropolitan Museum in New York, is particularly concerned about the bacteria and fungi that infest works of art, even in the poshest galleries.
He is talking of the new elite: the siloviki, loosely translatable as "power people", to whom Russians refer by tapping an imaginary epaulette on their shoulders; the men from whose ranks Mr Putin comes.The siloviki infest the nightmares of those who fear that Russia is returning to authoritarianism.
If the paperwork is not perfect, approval is delayed for a month.Ever since the war, Japanese boat owners have learned to live with the yakuza, gangsters who infest the country's waterfronts and often dictate which firms win which contracts.
(Less happily, with no need to stop for the harvest, wars in cassava-growing lands can be continuous).Now two viruses cassava mosaic disease and brown streak disease are destroying up to half the crop in areas they infest.
The overuse of drugs against parasitic worms which infest stock animals means that these, too, are becoming drug-resistant.
Communist guerrillas still infest the island, and their leaders are reluctant to talk peace.
