Citation (MLA Form): United States Department of Agriculture. "Field release of the gall mite, Aceria drabae (Acari: Eriophyidae), for classical biological control of hoary cress (Lepidium draba L., Lepidium chalapense L., and Lepidium appelianum AlShehbaz) (Brassicaceae), in the contiguous United States, Environmental Assessment, January 2018." 2018. www.aphis.usda.gov/plant_health/ea/downloads/2018/aceria-drabae-hoary-cress-biocontrol-ea.pdf.