Your DEET needs to be at least 70% (military surplus carry it this strong also Canada) - smear liberaly twice a day - exposed skin and all clothing.
It is not the cigar smoke that keeps them away - it is the nicotine in the blood - smoke several a day - and/or chew RedMan.
"Old Woodsman" is for the tourists - barbeque sause for fresh meat.
Vitamine B, Garlic, non-sugar diet, are all useless.
Sincerely,
Gargoyle
Spray window screens with comercial prep for no-see-ums. Enjoy some of the best fishing in the world and have fun.