title: X-ray radiation and developmental inhibition of Drosophila suzukii (Matsumura) (Diptera: Drosophilidae).
abstract: Different doses of X-ray radiation were tested to assess the developmental inhibition effects on different stages of Drosophila suzukii, spotted wing drosophila (SWD). Efficacy of a potential quarantine treatment dose was evaluated for its practicality by a small scale-up validation test at a commercial facility.
  
  
  
  X-ray treatments at different doses of 50, 100, 200, and 300 Gy were carried out with eggs, larvae, pupae and adults of SWD. The trial at the commercial facility was performed with pupae at 150 Gy.
  
  
  
  X-ray radiation inhibited development of all stages of SWD, and the estimated dose to cause 99% mortality or to prevent emergence (ED99) are reported here. Irradiation to eggs inhibited hatching, pupariation and adult emergence at 1962, 649 and 31 Gy, respectively. The inhibition of irradiated larvae to adult emergence was 66 Gy. Irradiation to pupae could not inhibit adult emergence completely even at 300 Gy. However, irradiation at 100 Gy and above induced complete adult sterility. Irradiation to pupae inhibited hatching of F1eggs at 73 Gy, while for adults, total inhibition of F1egg hatching was observed at 822 Gy. In the trial at the commercial facility, radiation at 150 Gy to pupae induced complete adult sterility in all combinations of cross-mating between treated or untreated males and females.
  
  
  
  This study suggests that X-ray radiation can be recommended as an alternative to methyl bromide as phytosanitary treatment for quarantine purpose.
authors: a Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828 , Republic of Korea.
authors: Junheon
authors: J
authors: Kim
authors: b Southern Forest Resources Research Center, National Institute of Forest Science , Jinju 52817 , Republic of Korea.
authors: Jeongmin
authors: J
authors: Kim
authors: a Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828 , Republic of Korea.|c Institute of Life Science (BK21+ Program), Gyeongsang National University , Jinju 52828 , Republic of Korea.
authors: Chung Gyoo
authors: CG
authors: Park
mesh_terms: D000818:Animals; D004307:Dose-Response Relationship, Radiation; D004330:Drosophila / Q000145:classification / Q000254:growth & development* / Q000528:radiation effects*; D005260:Female; D007300:Insect Control / Q000379:methods*; D008018:Life Cycle Stages / Q000502:physiology* / Q000528:radiation effects*; D008297:Male; D011829:Radiation Dosage; D013045:Species Specificity; D014916:Whole-Body Irradiation / Q000009:adverse effects; D014965:X-Rays / Q000009:adverse effects*
keywords: Asian vinegar fly; ionizing radiation; phytosanitary; quarantine; spotted wing drosophila