Can U Use multiple methods at 1 time?Questions and Answers › Category: Cockroaches › Can U Use multiple methods at 1 time? 0 Vote Up Vote Down Everett asked 8 months ago Can you use Gel, Roach Motels and sticky board at the same time? Question Tags: ? Nicholas Martin Staff replied 2 weeks agoHi Everett, thanks for your question. Yes, you absolutely can use multiple extermination methods at the same time. Moreover, if used and combined correctly, they will bring the desired result much faster.