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ORANGE HAWKWEED
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Orange hawkweed is a fibrous rooted perennial herb that grows up to 12 inches tall. The plant contains a milky juice. This plant can have as many as 5 to 35 flower heads. The strap-shaped flowers are red-orange with notched tips. This aggressive invader from Europe is also known as "Devil's Paintbrush". It thrives in disturbed areas such as roadsides, gravel pits, and pastures. It can also invade forested areas and is somewhat shade tolerant. It competes well with many native species by forming dense, monotypic stands. It spreads by seeds, stolons and rhizomes.
Control
Biological: There are no biological control agents available for Orange Hawkweed.
Chemical: When selective herbicides are applied in the spring and followed with nitrogen fertilizer, grass competition can keep this weed suppressed. The following herbicides are known to control this noxious weed in rangeland, pastures and other non-crop areas: picloram, dicamba, triclopyr, or clopyralid. Picloram is a "Restricted Use" product that can only be applied by a licensed applicator.
When choosing any kind of control method, assure that your choice is suited for your particular situation. Always read and follow the product label before applying any herbicide. |