Aerial spraying of herbicides as an integral part of clear-cut monoculture forestry practice is nothing new.  It's been a bane to neighbors of corporate timberlands for decades.  The battle has been between small landowners raising their families on their "homestead" style farms and a corporate partnership between huge timber companies and the agricultural/silvacultural chemical indistry who furnish those herbicides and pesticides for their use.  Needless to say, those small landowners and their families haven't done very well in their efforts to even get the impacts of ariel herbicide spraying studied.  The timber companies, the chemical companies (Dow and Monsanto are the leading corporate participants) and corporate-sponsored politicians assure us there's absolutely no problem. Lane County Commissioner Bozievich tells us all that  "Aerial spray is not a major health threat." That should be comforting to those who live in the areas subject to such spraying.