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Oklahoma State University Stillwater, OK |
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Oklahoma Alfalfa |
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Oklahoma State University Stillwater, OK |
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Oklahoma Alfalfa |
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Jointed Goatgrass |
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| COMMON NAME: | Jointed Goatgrass |
| SCIENTIFIC NAME: | Aegilops cylindrica Host |
| TYPE: | Annual Cool-season Weedy Grass |
| DESCRIPTION | |
| Germination: | September to November. |
| Reproduction: | By seeds April to June. |
| Stems: | Erect, bending at lower nodes, nodes without hair. |
| Leaves: | Blade and sheath pubescent, thick-walled, stiff hairs on margins of leaves. |
| Flowers/ Inflorescence: |
Spikelets arranged in a compact cylinder, longest beards at top of head. |
| Fruit: | Seed unit of spikelet, usually with 2 seeds. |
FOUND: |
Jointed goatgrass is found in wheat fields (where it ripens ahead of wheat and shatters easily), roadsides, and waste places. It is very difficult to control where wheat is grown continuously. It can be a problem in newly fall-planted alfalfa and in thinning stands. |
CONTROL: |
In seedling stands planted in the fall, KERB 50-W will give some control when applied at the 1-2 leaf stage. POAST PLUS and SELECT also give some control of goatgrass when applied during the fall. In established alfalfa stands, goatgrass is usually controlled with residual herbicides like VELPAR and SINBAR (0.5 lb/A of active ingredient) applied from January to February. |
| In Alfalfa | Plant | Leaf | Plant | Seed Head |
| Additional Jointed Goatgrass Images | ||||
| Jim Stritzke Former Alfalfa Weed Control Specialist Department of Plant and Soil Sciences Oklahoma State University |
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