Oklahoma State University
Stillwater, OK

Oklahoma Alfalfa
Oklahoma Cooperative Extension Service
Oklahoma Agricultural Experiment Station

Kochia

COMMON NAME: Kochia, Fireweed, Burning bush
SCIENTIFIC NAME: Kochia scoparia (L.) Schrad.
TYPE: Annual Warm-season Broadleaf Weed
DESCRIPTION                                                            
    Germination: Late winter to early spring (February-May).
    Reproduction: By seeds in late summer.
    Stems: Smooth, green, with many axillary stems at top of plant, from a few inches to over 6 feet high. Sometimes known as fireweed.
Leaves: Alternate, simple, entire, sessile, lance-shaped.
Flowers/
Inflorescence:
In axils of upper leaves and in terminal panicles.
Fruit: Seed in hull or membranaceous seedcoat.

FOUND:

Kochia may be found in cropland, dry pastures, and rangeland. Problems with Kochia occur in spring planted alfalfa in the northwestern part of the state and often it is found in thinning older stands of alfalfa.

CONTROL:

Control of Kochia with BUTYRAC 200 is variable. Good control of Kochia is possible with PURSUIT. It is important to treat Kochia when weeds are small and actively growing.
In Alfalfa tn_kochia-531_jpg.jpg (1554 bytes)
Seedling
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Plant
tn_kochia-540_jpg.jpg (1720 bytes)
Plant
tn_kochia-544_jpg.jpg (1464 bytes)
Plant
Additional Kochia Images
Jim Stritzke
Former Alfalfa Weed Control Specialist
Department of Plant and Soil Sciences
Oklahoma State University

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