Who's Tearing Up the Beetle Trap Bags?

When everything goes according to plan, Japanese Beetle trap bags look like this.  The scent/sex attractant lure draws the nasty critters toward the trap, and they fall into the bag ... by the thousands.

On numerous mornings over the last two weeks, I found the bags looking like this:

Something bit holes into the bottom of the bags, and the beetles were going in the top and out the bottom.  Solving this mystery involved my Bushnell trail camera, and some patience.  

July 5, 2016

July 5, 2016

July 9, 2016

July 9, 2016

July 13, 2016

July 13, 2016

What to do?  I needed to come up with some other way to contain the beetles, because Rocky Raccoon was destroying bags almost as quickly as I could replace them.  What could I use instead of these plastic bags?  

Brainstorm ...

... a half-gallon milk jug with the top portion of the plastic beetle bag secured to it.  I tried this on one trap last week and it worked really well.  Now I have milk jug modifications on all three of my traps.  Rocky Raccoon should have a much more difficult time biting a hole in these.