Phytosanitary Irradiation for Fresh Horticultural Commodities: Research and Regulations

Follett, Peter A.; Griffin, Ronald C.

doi:10.1002/9781118422557.ch13

Cited by 9 publications

(21 citation statements)

References 48 publications

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“…This result is well below the maximum limit for phytosanitary irradiation of 1 k Gy as accepted by the United States' Food and Drugs Administration and other international regulatory bodies (Follett & Griffin 2013). However, with no testing carried out below the target dose of 200 Gy, this threshold could be lower.…”

Section: Discussionmentioning

confidence: 65%

“…Different species have different tolerances, and there are internationally approved doses ranging from 150 Gy for Tephritidae (fruit flies) to 500 Gy for some species of mite (IPPC 2016a). Tolerance may also depend on whether the female species is mated, unmated, gravid or not gravid (Follett & Griffin 2013). Other factors influencing radiation tolerance include gender, with male species often but not always more tolerant than female species (Follett & Lower 2000).…”

Section: Introductionmentioning

confidence: 99%

“…To address age-related and sex-related conditions described by Hallman et al (2010), Follett and Lower (2000) and Follett and Griffin (2013), a mixed age dynamic population method was used as described by Nicholas et al (2018). The species tested are F. occidentalis (western flower thrips), Thrips imaginis Bagnall (plague thrips), F. schultzei and T. tabaci.…”

Section: Introductionmentioning

confidence: 99%

“…The species tested are F. occidentalis (western flower thrips), Thrips imaginis Bagnall (plague thrips), F. schultzei and T. tabaci. To address age-related and sex-related conditions described by Hallman et al (2010), Follett and Lower (2000) and Follett and Griffin (2013), a mixed age dynamic population method was used as described by Nicholas et al (2018).…”

Section: Introductionmentioning

confidence: 99%

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Effects of gamma radiation on the survival of four species of thrips (Thysanoptera: Thripidae)

et al. 2018

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The survival of four species of thrips (Frankliniella occidentalis, Frankliniella schultzei, Thrips tabaci and Thrips imaginis) exposed to gamma irradiation at doses of 0, 200, 300, 400 and 500 Gray was investigated. The aim of the work was to identify a generic dose of gamma radiation capable of killing or sterilising thrips infesting horticultural produce to prevent movement to, and colonisation of host plants in noninfested regions or countries. To simulate naturally occurring thrips populations, mixed life-stages were irradiated, and the effects compared with a nonirradiated control. The eggs of F. occidentalis and T. tabaci were more tolerant to irradiation than those of F. schultzei and Thrips imaginis, but none of the F. occidentalis or T. tabaci eggs developed beyond first stage larvae when irradiated at a target dose of 200 Gy. In mixed life-stage tests, all species had a similar tolerance to gamma irradiation. At a target dose of 200 Gy, all species were sterilised and no further offspring were produced. Based on these results, a minimum generic dose of 200 Gy would be sufficient to control these species of thrips in fresh horticultural produce destined for export to thrips-sensitive regions. A target dose of 250 Gy will provide a further margin of safety, until large-scale confirmatory trials are completed.

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Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of gamma radiation on the survival of four species of thrips (Thysanoptera: Thripidae)

et al. 2018

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“…). Since different species can have dramatically different levels of tolerance, no single prescribed dose of irradiation is suitable for all pests in all fresh horticultural commodities (Follett & Griffin ). Within a species, the most important biological factor influencing an insect or mite's tolerance to radiation is age (Hallman et al .…”

Section: Introductionmentioning

confidence: 99%

Phytosanitary irradiation of three species of spider mites (Trombidiformes: Tetranychidae)

et al. 2018

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The survival of three species of Tetranychidae mites: Tetranychus evansi (tomato red spider mite), Tetranychus ludeni (bean spider mite) and Tetranychus urticae (two-spotted mite), exposed to gamma irradiation doses of 200, 300, 400, 500 and 600 Gy was investigated. The aim was to identify an irradiation dose capable of killing or sterilising mites infesting horticultural produce to prevent movement to and colonisation of host plants in non-infested regions or countries. Eggs were irradiated separately; otherwise, to simulate naturally occurring mite populations, mixed life stages (immatures and adults) were combined and the treatment effects compared to nonirradiated controls. Irradiated eggs of all species failed to develop and hatch at 200 Gy and above. Tetranychus urticae was the most tolerant species, requiring an irradiation dose of 300 Gy to ensure all adult females were sterilised. Sterilised adults continued to lay eggs, but these eggs failed to develop or hatch. Tetranychus evansi and T. ludeni were sterilised when irradiated at 200 Gy. Based on these results, a dose of 300 Gy is recommended as a phytosanitary measure to prevent the survival of these species of Tetranychidae pests of horticultural produce in non-infested regions. Combined with data from other studies this study proposes a generic dose for Tetranychidae mites of 375 Gy.

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Phytosanitary irradiation as an effective treatment for Drosophila suzukii

Gomes,

Sobreira,

Aguilar

et al. 2024

Sci Rep

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Phytosanitary Irradiation for Fresh Horticultural Commodities: Research and Regulations

Cited by 9 publications

References 48 publications

Effects of gamma radiation on the survival of four species of thrips (Thysanoptera: Thripidae)

Effects of gamma radiation on the survival of four species of thrips (Thysanoptera: Thripidae)

Phytosanitary irradiation of three species of spider mites (Trombidiformes: Tetranychidae)

Phytosanitary irradiation as an effective treatment for Drosophila suzukii

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