National Water-Quality Assessment (NAWQA) Project
Beginning 2015, the provider of the surveyed pesticide data used to derive the county-level use estimates discontinued making estimates for seed treatment application of pesticides because of complexity and uncertainty. Pesticide use estimates prior to 2015 include estimates with seed treatment application.
1992-2019 State-level crop group (estimates for 2018-19 are preliminary*)
these are preliminary pesticide-use estimates that have been superseded by datasets listed above. Data contained within these archived datasets are provided here for reference.
1992-2016 State-level crop group pesticide use estimates (estimates for 2013-16 are preliminary)