Enforcer Roach Ridd is 99% boric acid - an ingredient that people have been using to fight cockroaches for nearly a century. Boric acid is one of the most effective cockroach control agents ever developed - provided that it is used correctly.
(NOTE: NEVER apply boric acid to countertops or other exposed surfaces, especially those used to prepare food. Wipe up any visible residues with a damp cloth.)
The key to success is proper application. For best results, the powder should be applied in a very thin layer barely visible to the naked eye. Piles or heavy accumulations will be avoided by foraging cockroaches much as we would avoid walking through a snow drift. Use a container that is no more than two-thirds full. This will allow an airspace at the top, which in turn, allows the dust to be puffed more easily. A few pennies or pebbles placed inside the container helps prevent the powder from caking. Shake the container and puff a small quantity of the powder into the target area. The trick is to give the container a shake, then puff a very light dusting of the powder into the area you wish to treat. Boric acid can be used alone or in combination with other cockroach control products.
Cockroaches succumb to boric acid when they crawl over treated areas. The tiny particles of powder adhere to the cockroach's body, and the material is ingested as the roach preens the powder from its legs and antennae. Some boric acid is also absorbed through the greasy outer covering of the insect's body. All species of cockroaches are susceptible to boric acid.
Boric acid retains its potency almost indefinitely as long as it remains dry.
Key areas for treatment include under & behind the refrigerator, stove and dishwasher, into the opening where plumbing pipes enter walls, such as under sinks and behind the commode, shower and washing machine, and into cracks along edges and corners inside cabinets and pantries.
An effective way to augment boric acid is to use bait stations. This dual approach is comparable to using a professional exterminator.