Iowa Noxious Weed Control Duty

Section 317.10 of the Iowa Code makes weed control a personal legal duty, not a suggestion: every owner and every person in possession or control of land must cut, burn, or otherwise destroy all noxious weeds on that land, at the times and in the manner set out in the county's annual weed-destruction-program order, and must also keep the land free of any other weed growth that renders an adjoining street or highway unsafe for travel. Under Section 317.9, the county board of supervisors enforces this duty across farm lands, railroad lands, abandoned cemeteries, state lands and parks, primary and secondary roads, and streets within cities.

The county weed commissioner administers the board's yearly destruction order and checks compliance directly. When an owner substantially fails to comply, Section 317.6 authorizes the commissioner, a deputy, or a supervised employee to enter the land and destroy the weeds without the owner's consent -- but actual destruction cannot begin until five days after notice is served. Notice must be delivered by personal service or, at the commissioner's option, certified mail, must describe the specific failure to comply, and gets filed with the county auditor; an unresponsive owner's address can be pulled from the county treasurer's most recent tax list.

Section 317.16 hands the commissioner two escalating remedies once a destruction order's deadline passes: enter and destroy the weeds under Section 317.6, and impose a fine of $10 per day of noncompliance, capped at 10 days for a $100 maximum -- and if the fine alone doesn't bring compliance, the commissioner destroys the weeds anyway. Section 317.21 converts the county's actual labor, material, and notice costs into a special tax assessed against the specific tract, with a 25% surcharge added on top to cover supervision and administration. The board of supervisors must schedule a public hearing on the proposed assessment no later than December 15, giving at least 20 days' notice by newspaper publication or by posted notice plus certified mail; the resulting tax is due March 1 and delinquent April 1, collected like any other unpaid property tax.

Section 317.1A splits Iowa's regulated species into twelve primary noxious weeds -- Canada thistle, leafy spurge, quackgrass, Russian knapweed, and Palmer amaranth among them -- and fourteen secondary noxious weeds, including cocklebur, poison hemlock, multiflora rose, wild mustard, and teasel. Two secondary species carry built-in exceptions: cultivated multiflora rose grown as rose understock or ornamental shrubbery, and cultivated shattercane, both drop out of 'noxious' status if a county board of supervisors adopts a resolution saying so for that county.

Under Section 317.16, ignoring a weed-destruction order draws a fine of $10 per day of noncompliance, capped at $100 for 10 days, on top of forced abatement: the weed commissioner enters the land and destroys the weeds regardless. Section 317.21 then bills the county's actual cost of labor, materials, and notice -- plus a 25% supervision surcharge -- as a special tax lien against the specific tract, due March 1 and delinquent April 1, collected exactly like unpaid property taxes with interest.