Last summer tested first - at the beginning hardly fly indoor aaaber THEN !!! with any rotting fly inside the relatives come to the funeral and stay in Innern- the vessel was filled over the summer bi the brim with black and green Fliegenleichen- the result can smell even sensitive noses! So my tip - far away from the food because the flies no longer to the terrace "want" because the smell of decay is much more enticing Relatives! Then carefully dispose of the contents in the compost bin - but only if the content is no longer "crawls" - then be re-used with new attractant example of Neudorf All in all top marks