When there are a lot of mosquito's around you have to use something. Deet sprays all smell and do not work as well. Buzz-off treated clothing works but you still have them swarming nearby. Thermacell works the best.
I was dove hunting yesterday and the mosquitos were nasty. After about 10 min. the thermacell kicked in and it was no more mosquitos, That is until the butane ran out!