@wafter
Re your avatar: That works with flies as well as bananas.
Flies only react to fast moving objects and ignore slow ones, so if they settle for a few seconds, you can slowly approach them with the hoover nozzle, and they'll just sit there until they suddenly disappear up the spout.
When I spent time in the Australian outback I was praying for someone to invent a huge net/vacuum device to attract and suck up all the flies into a big net, which could then be transferred into a crusher with fine holes so that all the liquified flies spurted out. I'd have probably covered myself in the mess and danced around a fire to celebrate
I sucked up loads of fruit flies with my vacuum nozzle the other week!
When I spent time in the Australian outback I was praying for someone to invent a huge net/vacuum device to attract and suck up all the flies into a big net, which could then be transferred into a crusher with fine holes so that all the liquified flies spurted out. I'd have probably covered myself in the mess and danced around a fire to celebrate