Managing Argentine ant (Linepithema humile) populations in South Carolina state park campgrounds

During preliminary surveys in the summer of 2007, three South Carolina state parks were inspected to evaluate the location and prevalence of the Argentine ant, Linepithema humile (Mayr). Based on where Argentine ants were found, two treatment options were implemented as part of an integrated pest management program. The first treatment was spraying of non-repellent insecticide around the hard surfaces of campsites, as well as spraying the base of trees within 10 feet of the site. The second treatment was spraying non-repellent insecticide around the hard surfaces of campsites and using granular bait around the base of trees within 10 feet of the site. Select trees were chosen to evaluate ants over a 12 week period in all treatment and control sites. Success of treatments was gauged by camper complaints/comments and the overall decrease of ants in each area.