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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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Curly Dock |
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| COMMON NAME: | Curly Dock |
| SCIENTIFIC NAME: | Rumex crispus L. |
| TYPE: | Perennial Cool-season Broadleaf Weed |
| DESCRIPTION | |
| Germination: | September to October. |
| Reproduction: | Established plants grow September throughout winter producing seeds from May to June. |
| Stems: | Smooth, erect, 1 to 4 feet tall, simple or in groups from the root crown. |
| Leaves: | Mostly basal, smooth, 6 to 12 inches long, lanceolate, with curled edges, leaves clasp stem at each node. |
| Flowers/ Inflorescence: |
Bisexual with 6 sepals. The inter 3 developing wings of the fruit, panicle |
| Fruit: | Brown with wings in clusters on the panicle. |
FOUND: |
Curly dock is found in pastures, roadsides, and alfalfa fields (low wet areas). |
CONTROL: |
The only time that dock can be selectively controlled in alfalfa is as a seedling in newly planted alfalfa from in seedling stands. BUTYRAC 200 should be applied at 4 pt/A early in fall under good growing conditions (good moisture and air temperature 60 F or above). Since established plants of dock can not be controlled in alfalfa, it is important to kill established dock plants in the rotation crops before planting back to alfalfa. |
| Jim Stritzke Former Alfalfa Weed Control Specialist Department of Plant and Soil Sciences Oklahoma State University |
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