Print in one or two colors. The colour of the cap will influence the success rate. Fruit colors like yellow orange should be best. After printing clean the entering tunnel.

Any problem with fruit flies? Put in WECK-Glas 1cm of water, 1cm of apple vinegar and few drops dish soap and fix the fruit-flies-catcher-cap on the WECK-glass. Wait and observe. Mark the glass so nobody drinks out of it!

Version for PET-Bottle: https://www.printables.com/model/499698-fruit-flywasp-trap-for-pet-bottle  

Versions for Wasps Print in one or two colors. The colour of the cap will influence the success rate. Fruit colors like yellow orange should be best. After printing clean the entering tunnel.

Any problem with fruit flies? Put in WECK-Glas 1cm of water, 1cm of apple vinegar and few drops dish soap and fix the fruit-flies-catcher-cap on the WECK-glass. Wait and observe. Mark the glass so nobody drinks out of it!

This object is not new. It was before together with the PET bottle fruit flie trap.