If it has reasonable cause to believe that a harmful plant exists and there is an immediate need to prevent its introduction, spread or dissemination in New Mexico, the department may impose a temporary quarantine on the state or any portion of the state to prevent the introduction, spread or dissemination of the harmful plant. The period for such temporary quarantine shall not exceed ninety days during which time a public hearing shall be held by the board as provided in Section 4 [76-7A-4 N.M. Stat. Ann.] of the Harmful Plant Act. If the board finds after such hearing that it appears the quarantine should be extended for more than the temporary ninety-day period, it may enter an order for such extension as provided in Section 4 of the Harmful Plant Act.