Bifen IT has not been shown to be very effective at controlling Raspberry Crazy Ants. Termidor SC used outdoors and Phantom used indoors have been the most effective products to control crazy Raspberry Ants. Ant baits and synthetic pyrethroid insecticides do not seem to do an effective job controlling this ant species. Texas A&M University has done extensive research regarding these ants and you can find detailed articles on their extension website.
When doing a soil barrier treatment for termites, it is important to treat directly against the structure on all sides of the house as close as possible. Against the foundation of the home, dig a 6 x 6 trench around the entire perimeter. Where carports and concrete patios are existing, you will drill 18-24 inch holes 2-3 inches off the foundation wall 10-12 inches apart. This will ensure the soil under that concrete slab is protecting the actual house foundation. Please read our on How To Perform A Termite Treatment Article for more detailed instructions and recommendations.
While Bifen IT is labeled for termites and will last up to 5 years in the soil, we would recommend using Termidor SC or Dominion 2L for termite soil barrier treatments. Termidor SC bonds to the soil after 24 hours and will last 10 years and Dominion 2L will last for 7 years.