1. Upon motion of the county commission, or upon the petition of one hundred landowners in any county, the county commission shall declare that a threat exists to the agricultural economy of the county by reason of the growth and infestation of noxious weeds. After such declaration there shall be submitted to the qualified voters of the county at the next general election, the question of enforcing the provisions of sections 263.450 to 263.474. The question shall be submitted substantially as follows:

2. The election thereon shall be conducted, votes canvassed, and the results declared in the manner provided in chapter 115 for county general elections. If a majority of the votes cast at the election are in favor of enforcing the law controlling noxious weeds, the clerk of the county commission shall enter upon the commission records the result of the election and, within ten days after the election, shall notify the state director of agriculture of the result of the election. If a majority of the votes cast at the election are not in favor of enforcing such law, the question shall not be resubmitted for at least two years after the election.