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This is a nice thread!

I have experimented a little bit this summer (or rather, end of the summer...) with baited canopy traps.

This is my very own, modified version of the Oulu trap, a great finnish invention which in it self is a modification of another finnish invention called the Jalas trap. The idea is simple: you have the bait inside the bucket, and try to make sure that the insects get into the bucket - but cannot escape. In my model I have filled the bottom of the bucket with about 5 cm of propylene glycol as a collecting medium.