Any quarantined area established under this subchapter shall remain in effect until the quarantined pest described in § RSA 19.500 of this title (relating to the Quarantined Pest) is eradicated from that area. The quarantined pest shall be considered eradicated from a quarantined area when no additional Mexican fruit flies are detected for a time period equal to three consecutive generations after the most recent detection. For the Mexican fruit fly, the number of days required to complete a reproductive cycle, one generation, is temperature dependent; therefore, a day-degree model will be used to calculate the duration of each consecutive generation.
4 Tex. Admin. Code § 19.501