can you seal them with saran wrap?
they did that to me when i lived in new west and never even did a perimeter treatment for prevention.. i was furious after all the work we had to do bagging everythingwhen they came in to do my building for bed bugs (and might I add they found nothing) They tell you to turn off the pumps and cover the tops of them. I just used mattress plastic wrap and taped around the outside of the glass.
they did that to me when i lived in new west and never even did a perimeter treatment for prevention.. i was furious after all the work we had to do bagging everything