to kill large numbers of animals, plants or people in a particular area (Oxford)
decimate something (informal) to severely damage something or make something weaker (Oxford)
to kill a large number of something, or to reduce something severely (Cambridge)
The rabbit population was decimated by the disease. (Oxford)
Cheap imports decimated the British cycle industry. (Oxford)
Populations of endangered animals have been decimated. (Cambridge)
population was decimated by the disease
imports decimated
Populations of endangered animals have been decimated
Annihilate
Exterminate
Massacre
Build
Create
Decimated