NPS herbicide usage data, Wagner et al. (2016d)

NPS herbicide usage data used in the publication"Wagner, V., Antunes, P.M., Irvine, M., Nelson, C.R. (2016) Herbicide usage for invasive non-native plant management in wildland areas of North America. Journal of Applied Ecology"Imported dataset was cleaned so that only rows that refer to exotic plant control were included, i.e. only rows with Purpose with "exotic plant control" or "exotic species control.Excluded rows encompassed the following categories in "Purpose":"Alfalfa", "Corn", "Employee/Visitor Safe", "Forest protection", "Greenhouse Plants", "Historical Preserv.", "Lawn/Turf Management", "Ornamental protect", "Other", "Past. protect.", "Research", "Public health", "Roadside/trail maint", "Site protect/restore", "Soybean", "Structural Protection", "Utility right-of-way", "wheat", and empty cells in "Purpose"See accompanying R script (10.6084/m9.figshare.3386032) and publication for more details on data preparation and analysis.