https://www.ars.usda.gov/north...Conducts research on the systematics and morphology of plant-parasitic nematodes. Identifies nematodes from federal, state, and foreign agencies and scientists for research, control and regulatory purposes. Develop new methods for identifying nematodes quickly and accurately. Curates and expands the USDA Nematode Collection and use the resources of the Collection to better understand nematode systematics. Develops data on nematode hosts, occurrence and distribution.