Columbia subject headings:
Harvard subject headings:
Crop losses--United States.
Crops--Quality--Government policy--United States.
Disaster relief--United States
Plants, Protection of--Research--United States.
Plants, Protection of--United States.
United States. Department of Agriculture--Management.
Princeton subject headings:
Crop losses--United States.
Crops--Quality--Government policy--United States.
Disaster relief--United States.
Plants, Protection of--Research--United States.
Plants, Protection of--United States.
United States. Department of Agriculture--Management.