"Ant invasion" refers to the situation when a large number of ants enter a place where they are not welcome or wanted, causing a disturbance or annoyance. Full definition
This missive, leaked to Buzzfeed, came from the head of the Agricultural Research Service, the USDA's research branch, which has hundreds of programs investigating everything from the genetic diversity of wheat to fire ant invasions. (sciencenews.org)
To find out whether ant invasions harm the lizards, conservation biologist Andrew Suarez of the University of California, Davis, and colleagues censused horned lizards over 3 years at 21 sites in four southern California counties. (sciencemag.org)
I have also sprinkled it liberally on my carpet during a particularly bad ant invasion. (wellnessmama.com)