Disinfestant

An agent that kills or inactivates pathogens in the environment or on the surface of a plant or plant organ before infection takes place.

disinfestant

An agent that kills or inactivates pathogens in the environment or on the surface of a plant or plant organ before infection takes place.
Found on http://ppathw3.cals.cornell.edu/glossary/Defs_D.htm
No exact match found