I am just finishing the construction of my wood fired smoker. Here in norhtern Michigan all the farmers are trimming up their apple and cherry trees. I would have an unlimited supply of this wood to use in my smoker this season. However, I am not a farmer and don't know much because I am very new to all this stuff, so my question is, is the limbs/cutoffs of these trees safe for smoking???? The reason I ask is because I know farmers spray for bugs and disease, so I was wondering if that would affect this wood?? Thanks for any help as always!!!