Annual Weeds
RAGWEED: LANCELEAF RAGWEED Ambrosia bidentada Life Cycle: Annual Plant Description:
Erect, warm-season annual in the sunflower family that can grow up to 3.5 feet tall. Native to North America, it is usually found in pastures, rights-of-way, and roadsides particularly in the wetter areas of these sites. Opposite leaves at the base and alternate elsewhere up the stem. Leaves are hairy, lanceolate, and triangular in shape, commonly with a single tooth on each side at the base. Stems also have rough or hairy upper portions with hairless areas near the
base. Non-showy flowers and clustered, cap-like seedheads resemble that of other ragweeds. Treatment: Apply 16 to 20 fluid ounces of DuraCor ®
herbicide per acre + 0.5 lb ae per acre, 2,4-D amine or 32 fluid ounces of GrazonNext ® HL herbicide per acre, or 20 to 32 fluid ounces of GrazonPD3 ™ herbicide per acre.
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