Dandelions, Plantain, Ground ivy, Cinquefoil
Life Cycle
Perennial
Leaf Type
Broad-leaved
Non-Chemical Controls
Mow high so turf can out compete weeds. Mow flower heads to prevent seed production
Chemical Controls
Spot treat with a selective post-emergence herbicide in the Spring or Fall
Crabgrass, Goosegrass, Foxtails, Barnyard-grass
Life Cycle
Summer Annual
Leaf Type
Grassy
Non-Chemical Controls
Do not aerate when crabgrass is germinating because weed seeds will be brought to the surface. Hand pull, removing at least part of the root. Use mulch layers/geotextile fabric. Cultivate and remove weeds from ground.
Chemical Controls
Apply a selective pre-emergence herbicide 10-14 days before germinations in the spring (late April-early May). For crabgrass, apply up to the time the local forsythia ends bloom. Goosegrass germinates 3-4 weeks later
Pineapple-weed, Yellow Wood Sorrell, Prostrate Spurge
Life Cycle
Summer Annual
Leaf Type
Broad-leaved
Non-Chemical Controls
Mow high to shade out germinating and emerging weeds. Use mulch layers/geotextile fabric. Cultivate and remove weeds from ground
Chemical Controls
Apply a post-emergence herbicide once you see weeds; at the 2-5 leaf stage for crabgrass and at an early stage for all other grassy and broadleaf weeds.
Annual Bluegrass
Life Cycle
Winter Annual
Leaf Type
Grassy
Non-Chemical Controls
Mow flower heads to prevent seed production. Correct compaction as many of these weeds are associated with that problem. Use mulch layers/geotextile fabric. Cultivate and remove weeds from ground
Chemical Controls
Apply a selective pre-emergence herbicide 10-14 days prior to germination in the Fall (around September)
Chickweed, Shepherd’s Purse, Yellow Rocket
Life Cycle
Winter Annual
Leaf Type
Broad Leaved
Non-Chemical Controls
Use mulch layers/geotextile fabric. Cultivate and remove weeds from ground
Chemical Controls
Apply a selective post-emergence herbicide in the Spring just before lawns start to re-grow
Yellow Nutsedge, Quackgrass, Nimbleweed, Bromegrass
Life Cycle
Perennial
Leaf Type
Grassy
Non-Chemical Controls
Remove clumps, including entire root system. Aim to control during the first year of growth
Chemical Controls
Spot treat with non-selective herbicide. Be aware that this will kill both the weed and the turf grass as well.