Foxtails
Common: Bristly Foxtail (Bur Bristlegrass), Giant Foxtail (Chinese Millet), Green Foxtail (Green Bristlegrass), Yellow Foxtail
Scientific: Setaria venticillata, Setaria faberi, Setaria viridis, Setaria glauca
Affected Crops: Alfalfa, corn, cotton, rice, row crops, soybeans, tobacco.
Identification:
- Bristly Foxtail - Erect, smooth stems, extremely
branched at the base. Leaf blades are smooth to rough, with rough
margins, with the exception of a few hairs near the base of the upper
surface. Tend to spiral.
- Giant Foxtail - Leaf blades are 4-12 inches long, hairy on the upper side. It has a conspicuous, nodding panicle.
- Green Foxtail - Leaf blades are less than 6 inches long. Ligules have short hairy fringe, and sheaths are closed with hairy margins.
- Yellow Foxtail - Leaf blades are hairless and
approximately 12 inches long. Ligules are membranous and fringed with
hairs, while the leaf sheaths are closed and smooth, except on the
margins.
Geographical Distribution: Yellow,
Green and Bristly Foxtails are common throughout the United States.
Giant Foxtail can be found from Massachusetts to Nebraska, in the Corn
Belt and south to northern Mississippi. Green Foxtail is more common
than the Yellow in western states.
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