How to Get Rid of Roaches in the Dishwasher

Not only do cockroaches carry diseases, they are also unsightly, especially in a kitchen. Dishwashers create a perfect environment for roach infestation by providing moisture, food, warmth and darkness. The best way to get rid of roaches in your dishwasher is a two-pronged approach that eliminates existing pests and prevents a new infestation.

How to Get Rid of Roaches in the Dishwasher
Image Credit: George Doyle/Stockbyte/Getty Images

Things You'll Need

  • Boric acid

  • Roach baits

  • Gel pesticide

  • Caulk

  • Caulking gun

Step 1

Sprinkle a thin line of boric acid around your kitchen.
Image Credit: Hemera Technologies/Photos.com/Getty Images

Sprinkle a thin line of boric acid behind the dishwasher, stove and refrigerator, as well as under the sink where plumbing pipes enter the kitchen.

Step 2

Squeeze a thin line of pesticide gel in cracks and crevices around the dishwasher.

Step 3

Attach roach baits to walls near the dishwasher and other kitchen appliances. Place them close to the floor. Follow the manufacturer's directions as to how often to replace them.

Step 4

Insert a thin bead of caulk in crevices around pipes under the kitchen sink.
Image Credit: Jupiterimages/Photos.com/Getty Images

Insert a thin bead of caulk in crevices around pipes under the kitchen sink and any other cracks and crevices in the kitchen.

Step 5

Clean your kitchen and appliances.
Image Credit: Jupiterimages/BananaStock/Getty Images

Clean up crumbs and wash grease off of kitchen appliances.

Tip

Do not apply boric acid too heavily, as roaches will avoid large piles of it.

Do not leave dirty dishes in the dishwasher.

Warning

Do not apply boric acid or pesticide gels on food prep areas or anywhere that children or pets can come in contact with it.

references & resources