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Horseweed is
an annual weed, winter or summer, depending on location. Horseweed
is an upright growing plant and can reach 4 - 5 feet if not mowed.
Horseweed grows in a basal rosette. The leaves which are oblanceolate
in shape are 3 - 4 inches in length. The leaves alternate and have
margins that are toothed. The stem of horseweed is simple and unbranched,
and covered with hair. Horseweed has a taproot. |
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The inflorescence is a panicle of heads with pink to white flowers. Horseweed spreads by seed produced in the summer. Horseweed is found through out the United States. |
| Integrated Pest Management Control Recommendations: |
Cultural Practices:
Horseweed is found mostly in thin turf and can occur following seeding.
Horseweed will be found in landscape beds and along fence rows and other
unmowed areas such as waste areas and fallow fields. Keep the weeds mowed
and prevent the seedhead from developing. Follow a proper fertility program
to promote competition from the turf.
Herbicide Use:
Make your postemergent herbicide application when horseweed is young and
actively growing.
University Links | Gordon's Recommendations | Germination Dates
