David writes
You may consider using Delta Dust Insecticide to dust entry points. As they come in/out they will get the product on their bodies & take it back with them. They will then distribute it among each other & kill the entire colony. Residual products such as Permethrin SFR 36.8% will only affect those that come in contact with treated areas. However, since Permethrin is an oil based product, it will discourage them from rebuilding their nest there
Answer last updated on: 09/12/2023
