An irradiation quarantine treatment against sweetpotato insects was developed. An irradiation treatment of 400 Gy for sweetpotatoes was published as a final rule in the Federal Register on February 18, 2004. The high-dose was set for controlling the pest complex until research was completed to confirm a lower dose. Research showed that an irradiation dose of 150 Gy is sufficient to provide quarantine security against the pests. Lowering the dose will lower the costs of irradiation treatment and minimize any adverse effects on quality. In the past two years, sweetpotato production has more than doubled due to the availability of the irradiation treatment. Approximately 5.0 million lbs of sweetpotatoes are currently being exported from Hawaii with irradiation treatment annually.