Curly Dock

Pest: Curly dock (Rumex crispus)

Pest Type: Perennial Broadleaf Weed

Major Identifying Features: Succulent cotyledons are three times longer than wide, rounded tip, egg shaped first leaves, leaves form a rosette and are alternately arranged, erect growth habit, 2-5 feet tall, member of the buckwheat family, swollen stem joints, hairless leaves, lance shaped leaves, non-showy flowers, one-seeded fruit

Life Cycle: Perennial, fruiting stems die back in mid to late summer, new basal leaves from in early winter, flowers year-round, reproduction by seed

Pest Rating: Limited

Management Rating: Moderate

Host/Season/Outbreak Information: Usually grows in wet areas or standing water, grows up to 8200 feet elevation on roadsides, wetlands, pastures, crop fields, orchards, unmanaged and disturbed moist areas

Damage Information: Plants may be poisonous to livestock when ingested in quantity, deep taproot, pushes out native species once established, heavy seed production (40000 a plant), spreads through manure, can be dormant up to 80 years

Management Options: Prevention by grazing and mowing, chemical control with herbicides in spring and fall (when established), WARNING ON THE USE OF CHEMICALS)

Sources:

http://www.ipm.missouri.edu

http://www.ipm.ucdavis.edu

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