Vinegar-based (20% acetic acid) or Citric Acid herbicides – considered natural organic weed killers – can be used effectively in landscape beds, sidewalks and driveways. Spray them when they are young for best results. These herbicides are not selective – they will damage any foliage they come into contact with.
Corn Speedwell (Veronica arvensis) is a low growing winter annual and a common weed problem in thin turf stands and newly seeded lawns. Pictures to help with lawn weed identification and control.
More weed identification:
Mouse-ear chickweed is a common lawn weed found throughout the United States. Its characteristics make it a competitive weed in lawns.
Prostrate knotweed also forms a dense mat. However, knotweed has bluish-green leaves and does not emit a milky sap.
Purslane and spurge are often found growing together. Purslane flowers are yellow and it has fleshy stems and leaves.
Spotted spurge has a milky white sap that will irritate the skin if it comes in contact with it.
Spotted spurge often grows in poor, compacted soil. While killing spotted spurge is relatively easy, the hard part is keeping it from coming back. The tap root of this plant is very long and its seeds are very hardy. This weed can and will grow back from either root pieces or seeds.
Spotted Spurge Identification
Heavily mulching with either newspaper or wood mulch is also an effective method of spotted spurge control. Cover ground with spotted spurge with several layers of newspaper or several inches of mulch. This will prevent the spotted spurge weed seeds from germinating and will also smother any plants that have already started growing.
Spotted spurge (Euphorbia maculata) is a dark green plant with red stems that grows low to the ground in a mat-like fashion. It will grow outwards from the center in a rough wagon wheel shape. The leaves are oval shaped and have a red spot in their center (which is why this spurge is called spotted spurge). The flowers on the plant will be small and pink. The entire plant has a hairy appearance.
Pre-emergent sprays or granules can also be used for spotted spurge control, but these will only be effective before the seeds have sprouted.