This short video was shot today and I share it just to demonstrate Argentine ants (Linepithema humile) at work.  Wikipedia has a great page devoted to them: http://en.wikipedia.org/wiki/Argentine_ant

I, and a potential new hire accompanying me for a ride along, had a fun time with these ladies today.  A customer had set an appointment because she had ants trailing in her kitchen and I was dispatched to solve her problem.  When we arrived we, of course, let the customer know we were on her property and would like to do an inspection of the exterior of her home.  The ants were everywhere.  It was cool.  She had ants trailing from an oak tree across her clothes line and on to the house.  She had ants trailing from the neighbor's yard into her yard, up a rake and up into her gutters.  She had ants trailing along the cable wire down into her crawl space then up pipes into kitchen and bathrooms.  She had ants trailing from a shrub down to the ground, up a piece of pine straw, then up wall into attic.  Inside, the ants were trailing in the attic, in the kitchen, in the bathrooms, and in master bedroom.  It was, for her, a nightmare.  For me it was fun and a great training opportunity for new guy.

So, you want to know, how did we resolve this issue?  We baited all interior trails with Optigard Ant Gel.  We treated trails on structure with 0.06% finished dilution of Termidor  as well as treating 18" around doors, windows, and other potential entry points per label directions.  We then applied a 4 ft band around the home of Intice Granular Bait at 4lbs per 1000 sq ft (4 lbs in this instance...235lf x 4 wide).  Next we went around the lawn and baited trails on and adjacent to home after Termidor had dried.

Argentine ants are difficult to control because of several factors including enormous colony size, queen may not even be on the property being treated, they can enter through a hole or crack as small as 1mm, they feed on both sweets and proteins, they may enter home at one location and trail throughout, and those are just some factors.  Usually more than one trip to the location is required.  Argentine ants are managed not eliminated.  Keep this in mind when treating.

ALWAYS READ PRODUCT LABELS CAREFULLY AND FOLLOW THEM!!!
To do otherwise is a violation of Federal and State law.