Things You'll Need
White granulated sugar
Paint stirrer or spoon
Bacon drippings (optional)
Powdered boric acid
Boric acid is toxic, so do not reuse any of the mixing tools for other purposes.
Keep the mixture and the resulting balls away from pests and small children.
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Place 1/4 cup of shortening into a bucket and add 1/8 cup of white granulated sugar to it. Mix the two ingredients up with a paint stirrer or a disposable spoon until well combined. If desired, you may substitute bacon drippings for the shortening.
Add 8 oz. of powdered boric acid to another bucket and then add 1/2 cup of flour and half of an onion that is chopped. Stir this mixture well.
Add the contents of the second bucket to the first bucket and mix well until combined. Add 1/4 cup of water and mix until the water is absorbed. Continue adding 1/4 cup of water and stirring until the mixture is the consistency of cookie dough.
Put on disposable rubber gloves and create 1/2- to 1-inch diameter balls of the mixture. Set the balls in areas where roach activity is observed, such as under sinks and cabinets or in garages and outdoor areas.
Kimberly Johnson is a freelance writer whose articles have appeared in various online publications including eHow, Suite101 and Examiner. She has a degree in journalism from the University of Georgia and began writing professionally in 2001.