A friend of mine gave me this idea a year ago and I use it on a regular basis...it is by far the best I have used when in the woods during turkey season.
I stumbled across a product called "Repel Permanone" Its in the camping isle of wally world. This year it is $6.48 per can and one can will "ideally" treat an outfit. I use 2 full cans to treat a full turkey hunting gear package including gloves, face mask, hat, boots, clothes, under armor, etc.
The stuff is a clothing treatment, aerosol that you spray your clothes with. It not only repels bugs, but kills them if they come in contact with your clothing.
The nice thing: they indicate on the can one treatment will last 3 weeks, and you can wash your clothing. I can tell you I have seen a tick land on my arm while calling a turkey and it died within a few minutes. I have also seen ticks that didn't die but they bail off fairly fast.
Once it gets hot I wear pretty much the same gear every time out. So here is my methodology for avoiding ticks during the 3 weeks left in turkey season every year once they appear:
Step 1: get an outfit from boots, socks to hat you will wear. Mushroomers just pick a favorite get up.
Step 2: pick a calm day or go in the garage, Wear rubber gloves, start by spraying boots, socks, hat. then take your long sleeve shirt, under shirt, and pants, belt etc. I treat every item front and back, and the pants, and shirt that will be on the outside, I also roll up the cuffs and spray the INSIDES of any area where a tick may crawl in.
Step 3: let em dry in the wind. don't get wet until dry.
It only takes me 20 minutes to do an entire gear package, including my turkey vest and seat. I highly recommend this if you are worried at all about ticks. I don't believe its a 100% guarantee but its MUCH better than the alternative.
P.S. Permanone is the brand, I believe the active ingredient is permathin, so there may be other brands, this one is made by repel as mentioned. Note: it is not for your skin!