Circle traps are used to capture and monitor pecan weevils. Developed by Kansas pecan grower Edward Circle, the trap is placed on the trunk of pecan trees. It is relatively easy and inexpensive to construct and is a viable alternative to larger, ground-placed traps, that can interfere with mowing, harvesting and other orchard activities. The Circle trap is made of a wire screen funnel with a boll weevil trap in the tip of the cone.
Fold one of the long edges of the aluminum insect screen mesh together and overlap the edges to form a cone.
Place the shorter piece of wood lath inside the cone to within 2 inches on the cone tip and staple the screen to the lath. This will complete the cone.
Trim the tip of the cone off with the shears to allow an opening approximately 2 inches in diameter.
Place the boll weevil trap inside the cone into the tip of the cone and staple the trap to the lath.
Staple the longer piece of lath inside the cone, opposite the short piece.
Fold the edges of the cone and staple a length of 9-gauge wire into the fold using the stapler.
Seal the space between the boll weevil trap and the screen cone using the hot glue gun.
Install the trap on the tree trunk by screwing the longer piece of lath to the tree trunk with the cone facing downward with the drywall screws.
Fold the cone around the trunk loosely and staple the screen to the tree.