Stop Herbicide spraying in our National Parks

Herbicides are poison. Wildlife such as ungulates eat the sprayed grasses. Small animals make their nests in grasses and so called "weeds". The few roads that exist in parks when sprayed will not as proven deter invasive species. I have seen small patches of weeds sprayed with gallons of poison when a few minutes of hand pulling would remove them permanently. Don'/t pollute our pure water for Monsanto's gain.