University of Maryland Extension

Green Kyllinga

Green kyllinga

(More lawn weeds)  (Control Options)  (General Weed Gallery)

Green Kyllinga  (Kyllinga gracillima)

Lifecycle: perennial, in sedge family

Growth Habit: produces a network of numerous underground stems (rhizomes) and can root and kyllinga seedheadssend out new leaves at each stem node. Has narrow, grass-like leaves. Often mistaken for nutsedge, but unlike nutsedge which grows upright, kyllinga spreads into dense mats and does not have underground tubers. Can handle close-mowing
Reproduction: prolific seeder (see photo, right)
Conditions that favor growth: sunny, moist areas but can move into shadier, dry spots

Cultural control: Maintain healthy, dense turf that can compete and prevent weed establishment.
Mechanical control: Hand pulling or using an appropriate weeding tool are the primary means of mechanical weed control in lawns. This is a viable option at the beginning of an infestation and on young weeds. Hand pulling when the soil is moist makes the task easier. Weeds with tap roots like dandelions or have a basal rosette (leaves clustered close to the ground) like plantain are easier to pull than weeds such as Bermudagrass (wiregrass) or creeping Charlie (ground ivy) that spread with stolons or creeping stems that root along the ground.
General chemical control: A difficult weed to control, there are no preemergents labeled to control it. Postemergent herbicides can provide control/suppression, but best used when kyllinga is young and before it forms dense mats. Look for the active ingredients: Common Name: Halosulfuron; Trade Name: Sedgehammer and others or Common Name: Sulfentrazone

Organic Control:

For a glossary of herbicide terms and additional information see: control options 

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2017. Web Accessibility