Annual Weeds
MUSTARD, HEDGE Sisymbrium officinale and Sisymbrium altissimum Life Cycle: Annual Plant Description: A winter annual or biennial that emerges in the fall. A rosette is formed
in the fall with deeply lobed leaves that resemble the basal leaves of a mature plan. The stem of a mature plant elongates in the spring and is singular, erect, and profusely branched, giving
the plant a very bushy appearance. Yellow flowers emerge in the spring. Seeds persist in long narrow seedpods (siliques) that give an appearance of barbed wire in early summer. Treatment: Apply 1.5 to 2 ounces of Chaparral ™
herbicide per acre or a combination of 16 fluid ounces of DuraCor ® herbicide + 16 fluid ounces of PastureGard ® HL herbicide per acre when plants are in the rosette stage (fall to early spring).
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