Waterhemp, Palmer amaranth and marestail dominate a soybean plot near Carleton
Canada thistle
ProClova before and after
Citrus tree
2-foot-tall marestail in soybean field
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Senecio weeds
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tractor and sprayer in field of corn residue and weeds
photo of a plot was taken April 2, 2015, at the start of the University of Wyoming Cheatgrass Challenge