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Response of oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), eggs to gamma radiation

Silva, W. D.; Arthur, V.; Mastrangelo, T. Universidade De São Paulo

RADIATION PHYSICS AND CHEMISTRY, v.79, n.10, p.1063-1066, 2010

PERGAMON-ELSEVIER SCIENCE LTD 2010

Acesso online

  • Título:
    Response of oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), eggs to gamma radiation
  • Autor: Silva, W. D.; Arthur, V.; Mastrangelo, T.
  • Universidade De São Paulo
  • Assuntos: Grapholita Molesta; Irradiation; Moth; Eggs; Plodia-Interpunctella Hubner; Kuehniella Zeller Lepidoptera; Dominant Lethal Mutations; Codling Moth; Quarantine Treatment; Ionizing Irradiation; Almond Moth; Life Stages; Pyralidae; Gelechiidae; Chemistry; Physical; Nuclear Science & Technology; Physics; Atomic; Molecular & Chemical
  • É parte de: RADIATION PHYSICS AND CHEMISTRY, v.79, n.10, p.1063-1066, 2010
  • Descrição: As insects increase in radiotolerance as they develop and usually several developmental stages of the pest may be present in the fresh shipped commodity, it is important to know the radiation susceptibility of the stages of the target insect before the establishment of ionizing radiation quarantine treatments. This study was performed to determine the radiotolerance of eggs of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), to gamma radiation. This species is considered as one of the most serious worldwide pests for temperate fruits, especially peaches. Eggs (12 h old) were exposed to 0 (control), 25, 35, 50, 75, 100, 125 and 150 Gy of gamma radiation. Surviving larvae were allowed to feed on an artificial diet. Three days after irradiation, it was verified that larvae`s cephalic capsules were significantly affected by gamma radiation, and the estimated mean LD(90) and LD(99) were 66.3 Gy and 125.8 Gy, respectively. Oriental fruit moth eggs revealed to be quite radiosensitive and very low doses as 50 Gy were sufficient to disrupt G. molesta embryogenesis. At 25 Gy, only male adults originated from the surviving larvae and, after mating with untreated fertile females, shown to be sterile. (C) 2010 Elsevier Ltd. All rights reserved.
  • DOI: 10.1016/j.radphyschem.2010.05.009
  • Títulos relacionados: Radiation Physics and Chemistry
  • Editor: PERGAMON-ELSEVIER SCIENCE LTD
  • Data de publicação: 2010
  • Idioma: Inglês

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