infestation
nounThe act of infesting or harassing; harassment; molestation.
A harassing inroad; a malignant or mischievous invasion.
The act of infesting or state of being infested; molestation; vexation; annoyance.
The presence of a large number of pest organisms in an area or field, on the surface of a host or anything that might contact a host, or in the soil.
A swarm of insects that attack plants.
