A creeping perennial that forms dense mat-like growth. Tiny white flowers appear from April into October. Prefers moist, cool conditions. Grows in most areas except along Mexican border or in North Dakota.
@controls[1]
Difficult to pull, because it entangles in the grass. Control by applying a post-emergent herbicide.
@name[2]
Crabgrass, Common
@botan[2]
Digitaria sanguinalis
@comment[2]
An annual bunch grass found across the country, except in Southwest and southern Florida. Blooms July to October. Doesn't grow in shade - likes moisture and sun. Seeds mature in late summer and early fall.
@controls[2]
Follow a good cultural schedule to choke out pest. Mow lawn high during spring to shade germinating seedlings. Apply a pre-emergent control in early spring.
@name[3]
Dandelion
@botan[3]
Taraxacum officinale
@comment[3]
Found across country except in a few areas of deep South. Produces coarse-toothed, long leaves in bunch. Bright yellow blooms, followed by round white seed heads. In cold areas, flowering occurs from March until a freeze; in warm areas, flowering occurs year round.
@controls[3]
The entire taproot must be dug out; otherwise, a new plant will grow. Use a post-emergent herbicide in the fall. Spot chemical applicators are available.
@name[4]
Dock, Curly
@botan[4]
Rumex crispus
@comment[4]
A perennial with a 1-1/2 to 2-foot taproot. Produces one or more tall stems. Found across the country. Its spikes of whitish flowers appear from June into September
@controls[4]
If small infestation, dig out, being sure to get the entire root. On larger area, apply a post-emergent herbicide. Apply spray into each plant crown.
@name[5]
Lamb's-quarters
@botan[5]
Chenopodium album
@comment[5]
Common annual weed. Leaves have white underside. Occurs most in newly seeded lawns or lawns having thin turf. Plumelike whitish flower heads and seeds appear June to October
@controls[5]
Mow lawn closely. Soak soil for easy pulling. For large area, use post-emergent herbicide.
@name[6]
Plantain, Broad-leaf
@botan[6]
Plantago major
@comment[6]
A perennial (sometimes annual) with broad leaves, 3 to 6 inches long and bunched low. Tall, slender stalks bloom June to October. Spreads by seeds.
@controls[6]
If small infestation, dig out when soil is moist. For larger area, use a post-emergent herbicide in early spring or fall.
@name[7]
Quack grass
@aka[7]
Couch grass
@botan[7]
Agropyron repens
@comment[7]
A vigorous-spreading perennial bunch grass. Forms a dense root structure by rooting at every joint on underground stems. Found across country except in parts of Southwest and deep South.
@controls[7]
Cannot be eradicated without killing lawn grasses, too. A black plastic cover extended over a patch will starve all growth. O apply a post-emergent control; wait three weeks before re-seeding lawn.
@name[8]
Shepherd's Purse
@botan[8]
Capsella bursa-pastoris
@comment[8]
A persistent annual that forms a circle of low leaves with white flowers on tall stems. Seed-pods are shaped like a shepherd's purse.
@controls[8]
Fairly easy to pull if soil is moist. For larger area, use a post-emergent herbicide.
@name[9]
Thistle, Canada
@botan[9]
Cirsium arvense
@comment[9]
Thrives in clay soils in the North. Long prickly leaves and lavender flowers. Spreads by seeds and underground roots. Blooms July through October.
@controls[9]
Use knife to cut below ground and remove crown from roots. For larger infestation, apply a post-emergent herbicide.
@name[10]
Yarrow, Common
@aka[10]
Milfoil
@botan[10]
Achillea millef
@comment[10]
A creeping perennial with very finely divided, soft leaves and white cushiony blooms. Grows in most regions with poor soil, except in the Southwest. Spreads by seeds and underground stems.
@controls[10]
Dig weed out as soon as it appears. For larger area, control by a couple of applications of a post-emergent herbicide.
