The Improved Wasp Trap

This wasp trap remix combines the best parts of two popular designs: a rain-covered multi-entry funnel and a sturdy hanging hook. The result is a simple, effective trap that screws onto a standard 1–2L soda bottle.

The Improved Wasp Trap screws onto a standard PET soda bottle, from 1L–2L sizes (Works with most standard soda bottles with 28mm PCO-1881 threads.). It features a sturdy hanging hook, covered entrances, and multiple openings leading to the funnel. The funnel itself was extended by the original creator to help reduce wasp escape.

Wasp Recipe

Add 1–2 inches of liquid bait to the bottom of the bottle.

Spring / Early Summer (protein phase)
Mix meat scraps, fish, or liverwurst with water.

Late Summer / Fall (sugar phase)
Use a solution of:

• 1/4 cup apple cider vinegar

• 1/4 cup sugar

• 1/4 cup water

• 1 tbsp dish soap
  (source: Reddit)

Placement & Maintenance

• Hang about 4 feet high, 20–27 feet from seating areas, in partial shade.

• Check daily; empty and refill every 3 days to prevent overcrowding and swarming.

• Do not crush dead wasps—their scent alerts the colony. Seal them in a plastic bag before disposal.

Uploaded Files

Feel free to modify supports to your liking.

WaspTrapsMergedSnug.3mf
Prints upside down and includes standard supports. The outside of the lid may print a little rough.

WaspTrapsMergedOrganic.3mf
Prints upside down and includes organic supports. The outside of the lid may print a little rough.

WaspTrapsMerged.stl
Add any type of support you prefer. Try printing it upside down or right side up.

Print Settings

Printed on a Prusa Mini+ using DeePlee Black PETG
(PETG recommended for outdoor / heat exposure)

• Perimeters: 3

• Infill: 15%

• Supports: As noted above