Creeping buttercup

Pest: Creeping buttercup (Ranunculus repens)

Pest Type: Perennial Broadleaf Weed

Major Identifying Features: Low-growing perennial, forms thick mats on wet, poorly drained soils, everywhere from farms to city gardens to natural wetlands, can grow up to 1 foot tall, dark green leaves with light patches, divided into 3 toothed leaflets, long petioles, somewhat hairy, yellow flowers with 5 glossy petals

Life Cycle: Perennial, dies back to ground level in winter, spreads by colons and seeds, blooms from March to August

Pest Rating: Moderate (weed of concern)

Management Rating: Difficult

Host/Season/Outbreak Information: Spreads by stolons and prefers wet soils, poorly drained soils

Damage Information: Very competitive and crowds out other plants especially in wet soils, depletes potassium, toxic to grazing animals, seeds remain viable for at least 20 years!

Management Options: Prevention and cultural control  by promoting healthy grass, improving soil drainage, cleaning mowers and equipment, mechanical control by digging from fall to spring, regular cultivation, chemical control with herbicides such as glyphosate, broadleaf herbicides, WARNING ON THE USE OF CHEMICALS

Sources:

http://www.kingcounty.gov/services/environment/animals-and-plants/noxiuous-weeds/weed-identification/creeping-buttercup.aspx

 

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