Right now the first wave of blackflies are just starting to buzz around. there's only a few here and there and only when it's a little warmer in sandy locations.
The first wave of black flies never seem to bite much so we probably have a while until they become a huge nascence. I've never liked them much but do tolerate them probably more than most. Took a picture of my wife last year and counted 97 blackflies in the frame when I got home and counted them on the computer. They sure do like to swarm sometimes.
As for how to best deal with them....
I don't eat banana's at all in the late winter/spring. Not sure if this really helps but I feel that it does.
I believe in bug jackets, they not only keep them from biting you but they keep them from crawling all over you too. And a side benefit it helps filter them out of your coffee, beer or chardonnay.
Was early in the spring when I decided to go
To work up in the woods in North Ontario
The unemployment office said they'd send me through
The Little Abitibi with the survey crew
And the black flies, the little black flies
Always the black fly no matter where you go
I'll die with the black fly a-pickin' my bones
In North Ontar-i-o-i-o, In North Ontar-i-o
As for N,N-Diethyl-meta-toluamide or Deet, it is one of the most studied bug repellents because of it's use with the US military. The basic way that it works is is blinds the insects senses by paralizing it.
There is no need for higher concentrations of DEET, Deet works in any concentration higher concentrations just last longer.
Products containing no more than a 38 per cent concentration of DEET will normally provide adults with sufficient protection. Studies have shown that products with lower concentrations of DEET are just as effective as the high concentration products, but they remain effective for shorter periods of time.
30% DEET will provide 6.5 hours of protection
15% DEET will provide 5 hours of protection
l0% DEET will provide approximately 3 hours of protection
5% DEET will provide approximately 2 hours of protection
I have a really old bottle of 90% Deet somewhere. I used to just tie it on a string and hang the entire bottle around my neck saying that just having the bottle of 90% Deet was enough to repel the bugs. I never did open the bottle.
If or when you use Deet you should be careful as it will eat through plastic. Stay away from.. well just about anything, your camera, plastic lenses in your glasses, almost any gear, etc.
Although Deet is probably one of the best chemicals for repelling Blackflys and mosquito's I still prefer a bug jacket or other more natural based chemical.
Public Health Agency of Canada
http://www.phac-aspc.gc.ca/
High concentrations of Deet have been banned in Canada since 2004
http://www.cbc.ca/news/story/2002/04/23/DEET_020423.html
The Original Bug Shirt
http://www.bugjacket.com/
Many places sell a cheaper (almost one use) bug jacket if you only want to spend around $15
http://www.mec.ca/Products/product_detail.jsp?FOLDER%3C%3Efolder_id=2534374302695921&PRODUCT%3C%3Eprd_id=845524441932141
E-How's page on Banana's and Mosquitos
http://www.ehow.com/about_4613829_do-bananas-keep-mosquitoes-away.html
Ontario Ministry of Heath, Mosquito & Black Fly Myths (Banana's)
http://www.health.gov.on.ca/english/public/pub/pubhealth/west_nile/wnv_repellent.html
Randy Mitson
AO Huntsville
http://www.aohuntsville.com
http://www.algonquinoutfitters.com
mailto:randym@algonquinoutfitters.com
