Lambsquarter is an erect summer annual. The leaves of lambsquarter are lanceolate in shape, approximately 1-2 inches in length and about 1-inch wide. The edges of the leaf are toothed and the leaf tip is pointed. The leaves are covered with a white mealy substance, especially on the underside of the leaf. The leaves form alternately on the stems. The root of lambsquarter is a branched taproot.
The flowers of lambsquarter are found in small green clusters and lack petals. The clusters of flowers form in terminal spikes. Lambsquarter spreads by black seeds that germinate in the late spring to early summer. Lambsquarter is found throughout Canada and the United States.
Weed Photos: Courtesy of Dr. Lambert McCarty. Clemson University. Clemson, SC.
Make your post-emergence herbicide application to lambsquarter that is actively growing and in the seedling to flower stage of growth.
Bensumec® 4LF Pre-emergent Grass & Weed Herbicide
PowerZone® Broadleaf Herbicide
Q4® Plus Turf Herbicide for Grassy & Broadleaf Weeds
SpeedZone® Broadleaf Herbicide for Turf
SpeedZone® Southern Broadleaf Herbicide for Turf
SpeedZone® Southern EW Broadleaf Herbicide for Turf
Super Trimec® Broadleaf Herbicide
Surge® Broadleaf Herbicide for Turf
Trimec® 1000 Low Odor Broadleaf Herbicide
Trimec® 992 Broadleaf Herbicide
Trimec® Bentgrass Formula Broadleaf Herbicide
Trimec® Classic Broadleaf Herbicide
Trimec® Encore® Broadleaf Herbicide
Trimec® Southern Broadleaf Herbicide for Sensitive Southern Grasses
TZone SE Broadleaf Herbicide for Tough Weeds