Layton,
Diesel fuel to control mosquitoes in hatchery ponds? You've got to be kidding. Gambusia are much cheaper and certainly more environmental friendly.
That reminds me of the post on here many months ago (years ago?) in which a guy recommended IVOMEC for treating his dogs. Occasionally he lost one after treatment, but it worked to kill internal parasites. ...yeah diesel fuel probably kills mosquitoes really well, but...