infestation

باللغة العربية: تَفَشٍّ، اِنْتِشَار الآفَات، غَزْو الحَشَرَات

1. 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. (countable, uncountable)

الجمع infestations