Have a problem with Mini-vampires ? Ta da boric acid and fruit juice dead dead dead..
http://www.realclearscience.com/2011/09/27/brewing_up_delicacies_for_mosquitoes_243283.html

In case the Link fails.
simple mix of fruit juice from over ripe fruits ,sugar and boric acid either sprayed on plants or filling a bottle with the mixture, from what I could glean a narrow neck bottle with a wick to draw up the mix as it would evaporate less.
The study showed The Biter was a Female which needed the iron and proteins for the eggs.
When they tested it was in Africa, and Israel in almost all the test mortality was 90% within a week.
The Study
http://preview.malariajournal.com/content/pdf/1475-2875-9-210.pdf
A secound study Florida
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2915.2010.00876.x/full

Black Flies look at paragraph 2
http://en.wikipedia.org/wiki/Black_fly