Survey of insecticide spray practices used in the fruit orchards of north central Washington.
D003634:DDT; D003625:Data Collection; D005421:Flavoring Agents; D005638:Fruit; D006801:Humans; D007306:Insecticides; D010278:Parathion; D014861:Washington
D005421:Flavoring Agents; D007306:Insecticides; D010278:Parathion; D003634:DDT
DDT; PARATHION