* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Wild Parsnip Best Management Practices
Plant stress measurement wikipedia , lookup
Evolutionary history of plants wikipedia , lookup
History of herbalism wikipedia , lookup
Plant nutrition wikipedia , lookup
History of botany wikipedia , lookup
Plant secondary metabolism wikipedia , lookup
Plant defense against herbivory wikipedia , lookup
Ornamental bulbous plant wikipedia , lookup
Plant evolutionary developmental biology wikipedia , lookup
Plant use of endophytic fungi in defense wikipedia , lookup
Plant morphology wikipedia , lookup
Plant breeding wikipedia , lookup
Plant physiology wikipedia , lookup
Plant reproduction wikipedia , lookup
Historia Plantarum (Theophrastus) wikipedia , lookup
Perovskia atriplicifolia wikipedia , lookup
Plant ecology wikipedia , lookup
Noxious and Invasive Weed Program - http://www.mda.state.mn.us/weedcontrol Prohibited Noxious Weeds Wild Parsnip – Pastinaca sativa L. Noxious Weed Classification – Wild parsnip is listed as a Prohibited – Control noxious weed in Minnesota. Efforts must be made to prevent seed maturation and dispersal of plants into new areas. Failure to comply with the Minnesota Noxious Weed Law (Minnesota Statutes 18.75 -18.91) may result in an enforcement action by the county or local municipality. Origin – Native to Europe and Asia Impacts – Wild parsnip is highly invasive and can outcompete native vegetation, creating large monocultures and displacing native animal and plant habitat. This plant is toxic to humans if the skin comes in contact with the plant’s sap. Parsnip sap contains chemicals that are activated by sunlight and can cause serious burns and blisters. Always wear gloves and protective clothing when dealing with wild parsnip. Description – A monocarpic perennial plant (spends several years in the rosette stage, bolts, blooms and dies) that typically grows to heights of 4 to 6 feet tall and reproduces by seed. Seedlings emerge in the spring and spend their first years of growth as rosettes. Eventually rosettes “bolt” and produce a stout branching stem. Wild parsnip leaves alternate on the stem and consists of 5-15 oval-shaped leaflets that are sharply toothed. Many five-petaled yellow flowers form in flat-topped umbels (shaped like upside-down umbrellas) at the end of stems. Wild parsnip typically blooms from late May – July in Minnesota. Following bloom, the plant begins to die and many flat seeds are produced in the umbels and can remain viable in the soil for up to five years. Habitat – Wild parsnip is most commonly found along Minnesota road and railroad rights-of-ways, but is also found invading pastures, natural areas, gravel pits, forest harvest areas, idle lands, and any other landscapes subjected to disturbance. In accordance with the Americans with Disabilities Act, an alternative form of communication is available upon request. TDD: 1-800-627-3529 An Equal Opportunity Employer and Provider Distribution in Minnesota – Wild Parsnip is found throughout most of Minnesota. The southeastern ¼ of Minnesota has the highest populations, but the plant is starting to increase its density in the western and northern parts of the state. Control and Management – Hand-pulling of wild parsnip plants is not recommended due to the hazards resulting from skin exposure to the plant’s sap. No matter what management you use, always wear clothing that covers your skin and only handle plants with gloves. Small patches may be weeded with a shovel by severing the tap root 1-2 inches below ground level prior to seeding. Sites should be periodically re-checked following initial weeding to ensure that no resprouts exist or that other rosettes have recently bolted. Cut plants can be collected and burned or composted on site. Mowing can be performed when wild parsnip plants are first observed to be flowering in an area (usually late May or early June). Repeat mowing will have to occur throughout the summer to cut newly bolted plants and any re-sprouts. In most cases, mowing will have to be done on an infestation for several years until the seedbank is exhausted. Wash all equipment after mowing wild parsnip plants to prevent transporting seeds to new areas. Chemical control using a selective broadleaf herbicide can be very effective for controlling wild parsnip. If you plan to use herbicide treatments, check with your local University of Minnesota extension agent, co-op, or landscape care expert for assistance and recommendations. There are several businesses throughout MN with state-certified herbicide applicators that can be hired to perform chemical applications for wild parsnip and other noxious weed species. Herbicides work best if they are applied during the early spring, on rosettes or newly bolted plants, and the late fall, on rosettes. Several years of treatment may be required to control the overall population until the seedbank is exhausted or other vegetation begins to compete with the remaining wild parsnip. PERSISTENCE IS THE KEY! Whether you choose to manage wild parsnip by weeding with a shovel, mowing, herbicides, or a combination of techniques, several years of commitment are necessary to ensure that the population has decreased significantly and is not a serious problem. In accordance with the Americans with Disabilities Act, an alternative form of communication is available upon request. TDD: 1-800-627-3529 An Equal Opportunity Employer and Provider