wood from hardware stores

So I've been reading a lot of threads recently about pine from hardware stores, and that you just have to check that it's kiln dried and is pine. I have been leery of hardware store wood, because you don't know if that tree was sprayed with pesticides when alive. Couldn't these still be marked as "untreated" because they weren't "treated" by preservatives or stains? I don't think the lumber company is thinking of pesticides. If the general consensus is that these untreated woods from hardware stores are safe, could you guys give me an opinion on some products from my hardware store?



poplar- http://ift.tt/1zVbRhh

there are more sizes as well



aspen- http://ift.tt/1zVbRhl

again more sizes possible



basswood-http://www.menards.com/main/home-decor/crafts/craft-specialty-woodworking/carving-block-large/p-2202121-c-12188.htm

http://ift.tt/1waVVME



balsa- package says kiln dried, untreated, and for woodcarving- http://ift.tt/1waVXEc

http://ift.tt/1waVVMI



all seem unglued and untreated and kiln-dried- if these are ok then I need to go shopping and start crafting. I would not use any wood stamped with a barcode in case of toxins in the stamp. There were birch and "yellow birch" products in the store I cant find online as well.