Gamma irradiation as a quarantine treatment for cherries infested by Western cherry fruit fly (Diptera: Tephritidae)
Western cherry fruit fly (WCFF), Rhagoletis indifferens Curran, infests cherries in the northwestern United States. Exposure of naturally infested fruit to doses from 42 to 210 Gray (Gy) reduced pupation; only one adult emerged (at 127 Gy). In a second test in which fruit were exposed to from 4.4 to 106 Gy, no adults emerged following irradiation of field-infested fruit at bigger or equal than 17.6 Gy. When bigger than 124,000 naturally infested cherries were exposed to 97 Gy, gamma irradiation was an efficacious quarantine treatment. No normal adults and only one abnormal adult with vestigial wings emerged from a treated population estimated to be 84,369 WCFF larvae. This research demonstrated that irradiation would be a potential quarantine treatment for WCFF larvae in cherries. Parasites, Pachycrepoideus vindemiae (Rondani), emerged from many of the untreated puparia but not from those WCFF irradiated as larvae
| Main Authors: | , |
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| Format: | biblioteca |
| Published: |
Jun
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| Subjects: | TRATAMIENTOS CUARENTENARIOS, RADIACION GAMMA, RHAGOLETIS INDIFFERENS, INSECTOS DEPREDADORES DE LOS FRUTOS, DIPTERA, LARVAS, CEREZA, PARASITOS, PACHYCREPOIDEUS VINDEMIAE, ESTADOS UNIDOS DE AMERICA, |
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| Summary: | Western cherry fruit fly (WCFF), Rhagoletis indifferens Curran, infests cherries in the northwestern United States. Exposure of naturally infested fruit to doses from 42 to 210 Gray (Gy) reduced pupation; only one adult emerged (at 127 Gy). In a second test in which fruit were exposed to from 4.4 to 106 Gy, no adults emerged following irradiation of field-infested fruit at bigger or equal than 17.6 Gy. When bigger than 124,000 naturally infested cherries were exposed to 97 Gy, gamma irradiation was an efficacious quarantine treatment. No normal adults and only one abnormal adult with vestigial wings emerged from a treated population estimated to be 84,369 WCFF larvae. This research demonstrated that irradiation would be a potential quarantine treatment for WCFF larvae in cherries. Parasites, Pachycrepoideus vindemiae (Rondani), emerged from many of the untreated puparia but not from those WCFF irradiated as larvae |
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