Just an FYI (since I haven't yet started a TR) that the black flies were flying when we were on the Isle from 8-13 June 2013. Not in great swarms, and a breeze or cooler evening weather would certainly put them at bay, but they were definitely hanging around. Reports were that they had been around for a week or so. Interestingly, the first couple batches we encountered weren't very aggressive or wanting to bite, they just hovered around and would land on shirts, etc. Later we had a few bites, but minor. Mosquitos, on the other hand, were quite prevalent.
However, if you're going in the next couple weeks, I'd bring a bug net or dope, since they do get annoying at camp.
It was funny to see snow (which was still on a few north rocks, and I found a good pile in a Minong Mine) and have black flies... I was kinda hoping they would come as late as the spring, but no luck!
Black flies are appearing
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fonixmunkee
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Re: Black flies are appearing
It's am ironic answer to this question, actually. Since black flow are from bell, they pay until help freezes over.sgatz wrote:How long do they (black flies) hang around?
Seriously though, they don't go away until the frost or consistently cold temps hit, sorry to say .
Tom: I think you and I got to enjoy a unique trip this year to the island... Nice temps and very few bugs.
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IncaRoads
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Re: Black flies are appearing
Black flies hatch from cool, clean rivers (i.e. moving water). They usually emerge in mid-to-late May and last until early-to-mid July, when the heat of the summer becomes more consistent.