Will boric acid kill german roaches?
If the German roach is an unwanted guest in your home, boric acid can help. It is not toxic to humans and pets in small amounts, but it kills German roaches effectively.CompositionBoric acid is a mineral. It is commonly sold in a powder form.FunctionA German roach picks up boric acid by walking through it. When the roach later cleans itself with its mouth, it ingests the boric acid and dies.PlacementPlace boric acid in a thin layer where you see German roaches most often. However, placing it near bait may discourage roaches from eating the bait.EffectivenessThough boric acid is toxic to German roaches, it does not repel them. You may have to apply boric acid to the same areas more than once to eliminate roaches.MoistureMoisture decreases the effectiveness of boric acid against German roaches.
