Boric Acid was used years ago to kill roaches. Any drawbacks?

Question

So you don't need much?

Answer 1

You are aware that there are studies that show that boric acid can build up in the body through the white blood cells and cause cancer right? wouldnt recomend that one I thought they made that stuff illegal for pesticide use without a liscense.

Answer 2

No-its' great,I wish I would have remembered it the other day. Get the powdered form and vac it up after a while-enough of it will remain to dry the buggers out.

Answer 3

From Wikipedia:

Boric acid was first registered in the US as an insecticide in 1948 for control of cockroaches, termites, fire ants, fleas, silverfish, and many other insects.[5] It acts as a stomach poison affecting the insects' metabolism, and the dry powder is abrasive to the insects' exoskeleton.

Boric acid is generally considered to be safe to use in household kitchens to control cockroaches and ants. Homemade ant bait can be made by dissolving 1 teaspoon (5 mL) powdered boric acid and 10 teaspoons (50 mL) sugar into 2 cups (500 mL) of water; this mixture can then be absorbed into cotton balls which are left near ant trails. This reportedly will be carried back into the ants' nest, decimating or even completely wiping out the colony.