A pesticide for the extermination of an insect of the order Blattodea, and particularly of Blattella germanica, the pesticide comprising a uniform mixture of: a Blattella germanica attractant comprising about 75% cooked mashed potatoes and about 14% cooked eggs yolk; and an active ingredient comprising boric acid in a concentration of about 10%, thereby providing a non-toxic to humans or pets pesticide which attracts the insect, and upon consuming it by the insect, the active ingredient exterminates the insect.