Pest Blocker(TM) for Wood Trays

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  • Medium and Large Pest Blocker
  • Pest Blocker shown in wood tray
  • Large Pest Blocker
  • Medium Pest Blocker
$1.50 - $1.95
Frequently bought together:


Stop sneaky parasitic wasps from attacking your reusable wood nesting trays.

Add our Pest Blocker to your reusable wood trays and add a layer of protection to the back of your wood trays.


  • Anti-fungal, washable, filter material
  • Medium trays (48, 78-hole trays) 5.75" x  3"
  • Large trays (96, 156-hole trays) 5.75" x 6"


  • Small parasitic wasps search for weak spots in mason and leafcutter bee nests. Our Pest Blocker discourages parasitic wasps from entering the back of your wood nesting trays.
  • Reusable after washing annually.
  • As of January 2020, all orders of reusable wood tray sets will include the Pest Blocker fabric.


  • Place Pest Blocker along the backside of your reusable wood tray.
  • Next, attach the cardboard backing with the green rubber bands ensuring there is no gap.
  • Rinse and air dry as needed.
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