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Dandelion
Life cycle: Perennial
Leaves: Long, broadest at the outside tip.
Stems: Hollow with a milky juice.
Flowers: Yellow
Roots: Deep fleshy taproot.
Comments: Very common.
Control
Cultural: Several hand tools available for removing rosettes and taproots. Raise mower height and plant grass seed where turf is thin to compete with dandelion seedlings.
Foliar Herbicides: Treat in spring before flowering. Fall spray is excellent. Products containing 2,4-D or apply weed/feed to wet leaves. May also use products containing triclopyr (Turflon), metsulfuron (Manor), or fluroxypyr (Spotlight).
Soil Herbicides: For landscapes, may use isoxaben (Gallery or Portrait) to suppress the growth of plants germinating from seed.