Monday, June 29, 2015

Nutsedges Invade Turf and Ornamental Plantings

Picture of a nutsedge plant growing in gravel
Nutsedge in the landscape
(Photo:  Leslie Beck, NMSU)
Featured Diagnosis: Nutsedge (Cyperus spp.) is a perennial with triangle-shaped stems and long grass-like leaves that appear very shiny in direct sunlight. There are two types of nutsedges: purple (C. roundus) and yellow (C. esculentus), though both are very difficult to control. The plant germinates in the late spring or early summer from underground 'nutlets' or tubers that grow at the end of aggressive rhizomes. The tubers of both nutsedges have the capabilities to survive many years beneath the soil surface. Both purple and yellow nutsedge can outcompete desirable plants and are very tolerant of intensive management.

Picture of nutsedge plants growing in a lawn
Nutsedge in a lawn
(Photo: Leslie Beck, NMSU)
Picture of nutsedge plants growing around juniper plants in a landscape planter box.
Nutsedge in a landscape planter
(Photo: Leslie Beck, NMSU)
Close-up of yellow flower stalk of nutsedge plant.
Nutsedge flowers
(Photo: Leslie Beck, NMSU)
Brown tuber of nutsedge in the palm of a hand.
Nutsedge tuber
(Photo: Leslie Beck, NMSU)
A hand holding a stem of a nutsedge plant showing the triangular shape of the stem.
Triangular-shaped stem of a nutsedge
(Photo: Leslie Beck, NMSU)

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