gũthũkia

v.

1. to damage, injure. To damage, injure. In agriculture, refers to causing physical harm or injury to crops, tubers, roots, or plant structures; to contaminate or harm through physical or biological means.

Example: Mũtukanio wa harĩa mĩũngũrwa ĩkũhandwo hatigakorwo na indo cia gũthũkia ta tũtambi kama thumu. (The Potting mixture should be free from either biological or chemical contaminants.); Kũrĩithia ngũkũ nĩ njĩra ĩmwe njega mũno ya kwambĩrĩria mũtũũrĩre mwega ũtarĩwa gũthũkia marĩa matũrigicĩirie (Keeping chickens is one of the most rewarding ways to start living green.); Arĩmĩ nĩmaratarũo kũmenyerera makĩrĩmĩra nĩgũo kũgĩrĩrĩria gũthũkia mĩrĩ. (Farmers are also advised to be careful when weeding to avoid tuber injury.)