![]() ![]() Photo by Peter Landschoot, Penn State Management and control Flowers of corn speedwell arising from leaf axils. Photo by Peter Landschoot, Penn Stateįigure 3. Leaves on the upper portion of elevated stems are narrow, hairy, with pointed tips. Leaves of corn speedwell are hairy, oval, and opposite one another on lower stems. Fruits are heart-shaped, hairy, and contain yellow seeds.įigure 2. As with other speedwell species, each flower has two stamens and a single style. Flowers are small, ¼- to ½-inch across, with blue petals and dark-blue stripes. Single flowers develop in leaf axils near the tips of elevated stems. Leaves on elevated stems are shorter and narrower than lower leaves, generally do not have serrated margins, and are pointed at the tip. Individual leaves on lower stems are approximately ½- to ¾-inch long, mostly oval, with serrated margins. Leaves are arranged opposite to one another on lower stems and form clusters on elevated stems. IdentificationĬorn speedwell produces branching stems which grow close to the ground in prostrate fashion, then turn upright, giving rise to flowers. ![]() This weed reproduces via seeds, which germinate during cool, moist conditions in late summer, fall, or spring. Plants produce vegetative growth and flowers from early spring through summer. Life cycleĬorn speedwell ( Veronica arvensis L.) is a member of the plantain family (Plantaginaceae) and has a winter annual life cycle. It often grows in large, dense patches and is conspicuous during spring and early summer. But a sustained approach over several years can help you solve this problem.This species can be found growing in moist or dry soils, in full sun or shade, and where turf is thin. Remember that the broomsedge did not move into the field in one year, and you won’t be able to outcompete it in one year. It won’t kill it all in one year, but over the course o 3 years or so, you should se a dramatic decrease in the broomsedge population. Doing this will weaken the plants going into winter and cause a certain percentage of the plants to die. It is best to clip twice, first in mid-July, when you see the brown seedheads, and then again in early September. If the broomsedge is clipped at the right time, it will weaken the plant and help with the competition with tall fescue. Use timely clipping to weaken the broomsedge.If the stand is less than 50 percent, it may be best to spray and kill everything (including the broomsedge) and replant tall fescue in the fall. If you have a 50 percent or more stand, you may need to simply drill more tall fescue in the fall to thicken the existing stand. If the tall fescue stand is thin, there may not be enough plants to cause competition to the broomsedge. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |