Integrated pest management resources for Michigan Michigan State University home IPM Michigan home
Weed Identification in Nurseries and Landscapes

Search
Resources
bulletChristmas trees
bulletField crops
bulletFruit
bulletHome and yard
bulletNursery and landscape
bulletTurfgrass
bulletVegetable

Related pest diagnostic/management programs
Diagnostic Services ● Soil/Plant Nutrient Lab ● Enviro-weather ●Regional IPM Center ● Pesticide safety ● Organic: New Ag Network ● Invasive species ●Sustainable ag & food systems

Organizations
MSU ANR departments ● MSU Extension ● Site index ●Contacts/permissions
Annual bluegrass - Poa annua L.
Weed Identification in Nurseries and Landscapes > Annual bluegrass
Annual bluegrass seedhead.
Annual bluegrass clump.
Annual bluegrass leaf tip.
Boat-shaped leaf tip of annual bluegrass.
Life cycle: Clump-forming winter or summer annual.

Leaves: Hairless, soft, light green leaves are folded in the bud and lack auricles. Leaves have linear margins (sides parallel) and distinctive boat-shaped tips.

Ligule: Slightly pointed membranous ligule.

Stems: Upright, bending, up to 1-foot-tall stems are clump-forming, enlarge by tillering and may root at the lower nodes.
Annual bluegrass clump.
Annual bluegrass clump.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the Michigan Agricultural Experiment Station, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.
Email the web developer.
Updated: 10/12/07