Biology, Ecology, and Management of Whitetop (Cardaria spp.)
2011
https://store.msuextension.org/Products/Biology-Ecology-and-Management-of-White…
Montana State University Extension.
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Early Detection & Distribution Mapping System (EDDMapS) - Hoary Cress
https://www.eddmaps.org/distribution/usstate.cfm?sub=5232University of Georgia. Center for Invasive Species and Ecosystem Health.
Provides state, county, point and GIS data. Maps can be downloaded and shared.
Hoary Cress Whitetop: Options for Control
PDF1.04 MBhttps://www.co.lincoln.wa.us/DocumentCenter/View/485/Hoarycress---Whitetop-PDFLincoln County Noxious Weed Control Board (Washington).
See also: Weed I.D. and Options for Control for more species
Invasive Plant Atlas of the United States - Hoary Cress
https://www.invasiveplantatlas.org/subject.html?sub=5232University of Georgia. Center for Invasive Species and Ecosystem Health.
Pest Tracker - Survey Status of Hoary Cress; Whitetop
https://www.pesttracker.org/map.php?code=PBKAJBAUSDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
PLANTS Database - Whitetop
https://plants.usda.gov/home/plantProfile?symbol=CADRUSDA. NRCS. National Plant Data Center.
Weed Control in Natural Areas in the Western United States: Hoary Cress (Whitetop), Lens-Podded and Hairy Whitetop
2013PDF252 KBhttps://wric.ucdavis.edu/information/natural%20areas/wr_C/Cardaria_chalepensis-…University of California. Weed Research and Information Center.
See also: Weeds in Natural Areas for more information sheets