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Washington Noxious Weed Law Where can I find more information? Longspine Sandbur Why we have weed laws: Noxious Weed Control Board Cenchrus longispinus Weed laws establish all property owners’ responsibility for helping to prevent and control the spread of noxious weeds. Since plants grow without regard to property lines or political jurisdictions, everyone’s cooperation is needed – city gardeners, farmers, government land agencies, foresters, and ranchers all have a role to play. of Grant County 32 “C” Street N.W. Room 321 Ephrata, WA 98823 Washington State Noxious Weed Control Board PO Box 42560 1111 Washington St. SE What it means to control weeds: Controlling noxious weeds means not letting weeds reproduce. Usually, that means not letting Olympia, WA 98504 –2560 (360) 902-2053 www.nwcb.wa.gov them go to seed. Legally, control means to prevent the dispersal of all propagating parts capable of forming a new plant, so, for instance, if the plant spreads by sending out roots, control would include eliminating all roots. Who administers the weed law: Education, coordination, and enforcement activities are carried out by the Washington State Noxious Weed Control Board, the Washington State Department of Agriculture, the local County Noxious Weed Control Board, and the local County Weed Districts. Noxious Weed Control Board of Grant County Longspine Sandbur Longspine Sandbur is native to central and How to Control Longspine Sandbur southern U.S. The common name of sandbur refers to the fact that this grass is adapted to porous and sandy soils. The seeds have stiff spiny spines on the burs that can puncture human skin How to identify Longspine Sandbur General Description: Annual that forms mats, blooming mid summer to late fall. Plants are wind pollinated. Flower Description: Inflorescence can be partially enclosed in sheath, made up of spiny burs, typically with 2 (up to 4) florets each. Numerous spines per bur, sometimes purple tinged. Burs have fine hairs. Leaf Description: Leaves have open (not fused) sheaths. Sheaths compressed and keeled. Hairs present along upper sheath margins and where leaf blade and sheath meet (ligules). Leaf blades can be flat or folded, generally up to 8.5 inches long by 0.12 to 0.24 inches wide. Sandbur frequently moves into adjacent fields from road shoulders, fence lines, and other poorly vegetated areas. Controlling sandbur in these areas is the best way to keep the weed from infesting cropland. Sandbur seedlings can be controlled easily by shallow tilling, hoeing, or hand pulling. Repeated tillage that controls seedlings prior to seed set can reduce the seed bank over time. There are several effective herbicides. Please refer to the PNW Weed Management Handbook for specific chemical recommendations: www.pnwhandbooks.org/weed What is a noxious weed? 'Noxious weed' is the traditional, legal term for any invasive, non-native plant that threatens agricultural crops, local ecosystems or fish and wildlife habitat. The term ‘noxious weeds’ includes non-native grasses, flowering plants, shrubs and trees. It also includes aquatic plants that invade wetlands, rivers, lakes and shorelines. Does the law require weed control? Washington's weed law (RCW 17.10) mandates the control of many weed species. "Control" is defined in WAC 16-750 as the prevention of all seed production. RCW 17.10 holds landowners, including counties and state land agencies, responsible for controlling weeds on their property. Federally owned lands are subject to the Federal Noxious Weed Act. Since many people are unfamiliar with noxious weeds, the state and Stem Description: Stems are solid and typically grow 4 to 31.5 inches tall. Stems sometimes growing along the ground and root at the nodes county weed boards and weed districts are Fruit/Seed Description: Seed in burs that turn brown as seeds ripen. a complete list of all state noxious weeds, available to provide information on identification and control options. Each year an updated list of noxious weeds is developed. For visit the State Weed Board Webpage at www.nwcb.wa.gov .