How to Manage Pests

Pests in Gardens and Landscapes

Pest identification and confirmation—Nutsedge rhizomes

Nutsedges are perennial weeds that superficially resemble grasses. Nutsedges grow mainly from tubers or "nutlets" formed on rhizomes, mostly in the upper foot of soil. Leaves are V-shaped in cross section and arranged in sets of three at the base. Stems are triangular in cross section. Tubers of yellow nutsedge are produced singly; purple nutsedge tubers are produced in chains, several on a single rhizome.

Yellow nutsedge tubers
Yellow nutsedge tubers
Inflorescence
Inflorescence
Young plant
Young plant


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