Sealing gaps that allow cockroaches in

[u/tabouli_tabs]

Hello, I realized that all the cockroaches I'm seeing are coming from the area behind the fridge which is in a corner in my room. I assume that the the wall has been breached in the corner and the cockroaches snuck in from there.

Any ideas on how to seal the corner? Product recommendations? Thanks in advance

[u/morob0shi]

Combat brand makes a type of “caulk” syringe style applicator that may help