There are 3 main reasons why rodents could be pulling off of your Catchmaster glue boards: 1. Dusty Environments – If the glue trap is placed in a dusty area, the dust may coat the glue. 2. Cold Temperatures – If the glue trap is being used in extremely cold temperatures (below 50° F performance will begin to decline). 3. Oily Substances – If the rodent itself is oily or greasy; if the glue trap is placed in an oily or greasy area such as a kitchen; or if the trap was baited with an oily product such as peanut butter or jelly. NOTE: Anything that coats the top layer of the glue will reduce effectiveness.