As a noun nonpest
is any creature that is not a pest.
As an adjective nonpast is
alternative form of non-past.
nonpest
English
Noun
(
en noun)
Any creature that is not a pest.
* 2006 , J. M. Schiller, Rice in Laos
- Species listed as possible pests or nonpests might qualify as temporary pest species during nuu khii outbreaks where these originate in forest habitats.