Horticulture+-+Noxious+Weeds

=Hoary Cress (//Cardaria draba//)=

Common names: White top, Hoary Cress, Heart podded white top

Description:. This weed is a great concern in wildland areas, agricultural fields and even found along road sides and urban landscapes. Each strand of the weed contains heart shaped seed pods and blooms a white flower with four petals during late spring. Hoary cress is a perennial plant and is a member of the mustard family. It can grow up to one or two feet tall. This plant has a clasping leaf, meaning the upper leaves clasp onto the stem of the plant. Location: This plan originated in Europe. Hoary Cress is a noxious weed commonly found in Montana, Utah, and Colorado. Its not only found in the United States, it has been introduced onto every continent. Prevention and eradication: There are four types of herbicides approved to control Hoary Cress-
 * **Brand of Herbicide** || **How to Apply** || **When to Apply** ||
 * Round-up || broadcast ||  ||
 * 2, 4-D || broadcast ||  ||
 * Escort || broadcast ||  ||
 * Banvel + 2, 4-D || braodcast || early bud stage in the spring and at the rosette stage in the fall ||

References: http://www.colorado.gov/cs/Satellite/Agriculture-Main/CDAG/1178305507387 http://www.utahweed.org/weed_hcress.htm http://plants.usda.gov/java/profile?symbol=CADR