Solve a cockroach problem

Use this cockroach bait recipe: Combine equal parts boric acid (a powder sold in hardware stores and chemists) and sugar, mix well. Sprinkle in crevices and, if building or renovating, between walls before putting up plaster board. Put the powder in jar lids; place lids behind the fridge and under sinks.

Caution: Keep mixture away from children and pets. If ingested in large quantities, or even in small amounts over several days, boric acid can be harmful