Little Bay (sidneys) took care of a BIG mozzie/fly problem from the last time. They had a dumping area that was causing a big moz/fly issue.
we had ZERO fly/moz problems last few weeks. but the winds were basically hellacious the whole time we were down there. and if there were any flying around, they got beaten down by the rain squalls.
i would say...if you see a larger zebra/spotted looking moz, dose the DEET. but I have yet to have to go there in BVI.