CERIS is based within the Entomology Department at Purdue University
This site is home to a collection of databases of information on pesticides, plant export/import requirements and exotic pest tracking.
The National Pesticide Information Retrieval System (NPIRS) is a collection of pesticide-related databases http://npirspublic.ceris.purdue.edu,
The National Agricultural Pest Information System (NAPIS) is a database of the USDA Cooperative Agricultural Pest Survey, which tracks the movements of exotic and invasive insect and plant pests throughout the United States.
http://pest.ceris.purdue.edu.
The National Plant Diagnostic Network (NPDN) is a collection of Land Grant University plant disease and pest diagnostic facilities from across the United States.
http://ceris.purdue.edu/npdn/
http://ceris.purdue.edu/ceris/