Winter Annuals are Beginning
Glenn Hardebeck,Turfgrass Research Agronomist, Department of Agronomy,
Winter annuals are beginning to dieback
with the early onset of summer-like weather conditions especially
those in exposed areas. Winter annuals such as downy bromegrass
and common chickweed germinate throughout the fall, over-winter,
grow throughout the spring and die as the summer heat sets in. Control
now is best left to the heat of summer. While downy bromegrass
in turf areas is best left to mowing and the heat of summer, common
chickweed can be sprayed with a broadleaf herbicide during October
or even early November in mid to southern parts of Indiana.
Click image to enlarge
Downy bromegrass in an exposed area with added heat from a masonry
wall showing signs of dieback with the onset of summer weather.
Common chickweed holding on in a protected area on the north side
of a building.