Horseweed is a common weed in fields, meadows, wastes, and in the cialis levitra sales viagra gardens throughout its native range, colonizing areas where perennials are not established or that are disturbed. It often grows in cracks of hard scape surfaces as well, and can cause problems with heaving in thin materials such as flagstones.
Horseweed is an annual plant growing to 1.5 m (5 ft) tall, with sparsely hairy stems. The leaves are slender, 2-10 (0.5" to 4") cm long and viagra online pharmacy review up to www.payday loans 1 cm (0.5") broad, with a coarsely toothed margin. The flowers are produced in dense inflorescences 1 cm (0.5") in diameter, with a ring of white or pale purple ray florets and a center of yellow disc florets.
Control
In summer, patrol upwind meadows and remove plants if possible.
Mowing: Provides effective control
Pulling: Pulls easily, the root systems are rather compace and close to the surface.
Pre-emergents (organic): Pre-emergents can be used in spring
Contact herbicides (organic): Plants may regrow after burndown herbicides
Contact herbicides (synthetic): Non-resistant biotypes are susceptible to roundup.
Systemic herbicides (synthetic): Systemic herbicides such as glyphosate or paraquat are effective. Other systemics such as 2,4-D also are effective
Disposal: Safe for composting. Hot composting only after flowers are set.