[Andropogon virginicus L.]
is a perennial weed frequently found in fields, along roadsides, and in
openings to forests and pastures. It can be distinguished from other grasses by
the flattened leaf sheaths which have obvious leaf hairs. Leaves with folded
vernation arise from a basal crown. Immature plants are bluish-green, however
mature leaves turn light brown and appear to be dry. These upright leaves
remain standing throughout the year.
Seedhead / Flower
spikelets are in racemes of groups of 2-4
leaves folded in the bud
membranous; sharp pointed to collar-like, hairs along edge, no
hairs on back of ligule
Growth Season / Life Cycle
Leaf Blade Tip Shape
sharp-pointed; flat, hairy near base above, smooth to rough
below, edges rough and with hairs
Leaf Blade Width
0.1 - 0.28 inches (3 - 7 mm) wide
divided; mostly hairy on edges
split with overlapping margins; sheath has long hairs on edges
very flattened, sharply creased
Note: Still not
sure this is the right weed? The Turf
& Weed Identification Decision Aid may help. Check the TurfFiles glossary for definitions
of unfamiliar terms.
grass weeds are not desirable as turfgrass species under any conditions.
Therefore, every effort should be made to prevent these weedy grasses from
becoming established in turf, as selective control measures are usually
difficult. Selection of adapted turfgrass species and cultivars and the use of
cultural practices are important in minimizing weedy grass encroachment and
competition. Management practices include (1) mowing at the recommended height
for the selected turfgrass and removing clippings when seedheads of grassy
weeds are present; (2) applying the proper amount of nitrogen at the correct
time according to the turfgrass present; and (3) using soil tests to determine
needed nutrients and lime.
Broomsedge control is achieved
with repeat applications of MSMA in tolerant turf. However, MSMA may be phased
out in 2009.
Recommendations of specific chemicals are based upon information on the
manufacturer's label and performance in a limited number of trials. Because
environmental conditions and methods of application may vary widely,
performance of the chemical will not always conform to the safety and pest
control standards indicated by experimental data. The order in which brand
names are given is not an indication of a recommendation or criticism.
Recommendations for the use of
agricultural chemicals are included in this publication as a convenience to the
reader. The use of brand names and any mention or listing of commercial
products or services does not imply endorsement by North Carolina State
University or discrimination against similar products or services not
mentioned. Other brand names may be labeled for use on turfgrasses. Individuals
who use agricultural chemicals are responsible for ensuring that the intended
use complies with current regulations and conforms to the product label. Be
sure to obtain current information about usage regulations and examine a
current product label before applying any chemical. For assistance, contact
your county's Cooperative Extension agent.
© North Carolina State University. This information sheet was prepared
by Fred Yelverton, Bridget R. Lassiter, Gail G. Wilkerson, Leon Warren, Travis Gannon, Jenifer J. Reynolds, and Gregory S. Buol. Department of Crop
Science, College of Agriculture & Life Sciences, North Carolina State
University. Prepared July 15, 2008. Available on-line at
www.turffiles.ncsu.edu. This publication was made possible through a grant
provided by the Center for Turfgrass Environmental Research & Education
(CENTERE) whose purpose is to support worthwhile projects that will benefit
both the private sector and the public, and protect the environment.