Tony from Barrington, Il writes
Temprid SC would be mixed at 16 ml per gallons of water and applied at a low-pressure setting along baseboards, window and door frames, on the underside of furniture, behind bookshelves, and in other problem areas as listed on the product label. Residual sprays need to be reapplied every month to every 3 months, depending on the level of infestation. It is also a good idea to alternate products with different active ingredients each application. This will help prevent the roaches from quickly building up a resistance to any single active ingredient. Please take a moment to read How To Get Rid Of Roaches for more tips and advise.
Answer last updated on: 10/24/2013