Page 108 - AG 7-2011 Revised 2016

Photo Courtesy of PBI/Gordon Corp. Barnyard Grass
(Echinochloa crusgalli)

Barnyardgrass is a summer annual which has tillers which lie flat
and form secondary roots resulting in a mat formation. The leaves
of barnyardgrass are rolled in the bud and contain neither a ligule
nor auricles; the sheath is open but compressed. The mid-vein is
thick and keeled; roots are fibrous.

Barnyardgrass spreads by seed which germinate in late spring
and early summer. The seedhead is a coarsely branched green to
purplish panicle with spiked awns. Barnyardgrass is found
throughout North America and Mexico.

Immature Stage

Integrated Pest Management Control Recommendations
Cultural Practices:
Barnyardgrass is found in moist soils; especially soils high in nutrients. Mow low to prevent the development of the
seedhead. Physical removal can be done both in turf and landscape plantings.

Herbicide Use:
Make a pre-emergent herbicide application prior to the seed germination. For post-emergent control use a product
containing MSMA.

Net-like Parallel Vein
vein

DICOT MONOCOT

First True
Leaves

2 Cotyledon
leaves

Broadleaf Drawing’s by Andrew Schaible

2 Cotyledon leaves emerge Grasslike

Single Cotyledon leaf emerges

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