infest

/ɪnˈfɛst/
verb
  1. (of insects, animals, or unwanted organisms) to be present in large numbers, causing damage or annoyance.
    • The farmer's crops were infested with locusts.
    • Mice had infested the warehouse, chewing through boxes and wires.
    • Cockroaches began to infest the old apartment building.
  2. To overrun or be present in a place in a troublesome way (can also refer to people or things).
    • Tourists infest the small village every summer, crowding the streets.
    • Spam emails infest my inbox every day.
    • Pirates used to infest those coastal waters, attacking merchant ships.