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                        Acebes-Doria, Angelita
                                    Cha, Dong
                                    Follett, Peter
                                    Johnson, Melissa
                                    Liang, Peishih
                                    Manoukis, Nicholas
                                    Siderhurst, Matthew
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ARS Home Pacific West Area Hilo, Hawaii Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center Tropical Crop and Commodity Protection Research Research Publications at this Location





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Title:   Author  item
                                            Follett, Peter
  Submitted to: Australasian Postharvest Conference
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 9/13/2007
                                    Publication  Date: 12/17/2007
                                    Citation: Follett, P.A. 2007. Generic Irradiation Quarantine Treatments: The Next Steps. Proc. 2007 Australasian Postharvest Conf. 5 pp.Interpretive Summary: USDA-APHIS published a landmark rule in 2007 providing generic irradiation quarantine treatments. The rule approved irradiation doses of 150 Gy for any tephritid fruit fly and 400 Gy for all other insects except the pupa and adult stages of Lepidoptera. The generic irradiation treatments apply to all fresh horticultural commodities. We discuss three areas of future irradiation research in light of the new generic treatments including (1) development of generic doses below 400 Gy for groups of insects other than fruit flies, (2) reduction of doses for specific commodities to shorten treatment time and minimize any adverse effects of irradiation treatment on quality, and (3) demonstration that boxes of mixed fruits can be treated while meeting dosing requirements. Hawaii has been using generic doses to export tropical fruit since 2000.  India recently began exporting mangoes to the U.S using irradiation, becoming the first country to use the newly-approved generic doses. Thailand was recently approved to export 6 tropical fruits using the new generic doses. Other countries are lining up.
                                Technical Abstract: In 2006, USDA-APHIS published a landmark rule providing generic irradiation quarantine treatments. The rule approved irradiation doses of 150 Gy for any tephritid fruit fly and 400 Gy for all other insects except the pupa and adult stages of Lepidoptera. Therefore, if a pest risk assessment demonstrates that no pupae or adult Lepidoptera are associated with a commodity, export approval can be forthcoming with no further research. The generic irradiation treatments apply to all fresh horticultural commodities. We discuss three areas of future irradiation research in light of the new generic treatments including (1) development of generic doses below 400 Gy for groups of insects other than fruit flies, (2) reduction of doses for specific commodities to shorten treatment time and minimize any adverse effects of irradiation treatment on quality, and (3) demonstration that boxes of mixed fruits can be treated while meeting dosing requirements. Hawaii has been exporting fruits and vegetables to the U.S. mainland using irradiation since 2000. India recently began exporting mangoes to the U.S using irradiation, becoming the first country to use the newly-approved generic doses.


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