I have been trying to set up a black soldier fly farm at the ECHO Florida office and have been struggling to attract them naturally. We have a fairly large bin that has two inclines on each side that lead into buckets. I started it in August/September but was unable to attract any flies so we purchased the larvae to start. They took surprisingly long to mature and fall into the side buckets, but I did harvest them in small batches every now and then. After some time, I did see one fly near the bin; however, I never saw any eggs on the cardboard I had set up. Around mid December, I seemed to have none left in the bin.
I would really like to attract local flies than to purchase the larvae. Tips and tricks would be much appreciated.
Sincerely,
an ECHO Florida Intern.