Visualize usage of neonicotinoid pesticides across the counterminous USA from 1992-2012, based on the USGS EPest datasets.
- Stone 2013 (EPest years 1992-2009)
- Baker and Stone 2015 (EPest years 2008-2012)
- 2010 USA Counties Shapefile (gz_2010_us_050_00_500k.zip)
Animation of neonicotinoid usage by county over time, created using the gganimate package:
Total neonicotinoid usage by year:
Neonicotinoid usage by county and year: