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Evaluating irradiation dose for sterility induction and quality control of mass-produced fruit fly Bactrocera tryoni (Diptera : Tephritidae)

Dominiak,BC, Sundaralingam,S, Jiang,L, Fanson,BG, Collins,SR, Banos,C, Davies,JB and Taylor,PW 2014, Evaluating irradiation dose for sterility induction and quality control of mass-produced fruit fly Bactrocera tryoni (Diptera : Tephritidae), Journal of Economic Entomology, vol. 107, no. 3, pp. 1172-1178.

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Title Evaluating irradiation dose for sterility induction and quality control of mass-produced fruit fly Bactrocera tryoni (Diptera : Tephritidae)
Author(s) Dominiak,BC
Sundaralingam,S
Jiang,L
Fanson,BG
Collins,SR
Banos,C
Davies,JB
Taylor,PW
Journal name Journal of Economic Entomology
Volume number 107
Issue number 3
Start page 1172
End page 1178
Total pages 8
Publisher Entomological Society of America
Place of publication Lanham, Md.
Publication date 2014-06
ISSN 0022-0493
Keyword(s) Bactrocera
insect quality parameter
mass production
sterile insect technique
Science & Technology
Life Sciences & Biomedicine
Entomology
FROGGATT DIPTERA
INSECT TECHNIQUE
FLIGHT ABILITY
ECLOSION
DISPERSAL
FLIES
POPULATIONS
AUSTRALIA
RELEASE
IMPACT
Animals
Dose-Response Relationship, Radiation
Female
Flight, Animal
Longevity
Male
New South Wales
Pest Control, Biological
Pupa
Quality Control
Reproduction
Sex Ratio
Tephritidae
Summary The sterile insect technique has been routinely used to eradicate fruit fly Bactrocera tryoni (Froggatt) incursions. This study considers whether fly quality in a mass-rearing facility can be improved by reducing irradiation doses, without sacrificing reproductive sterility. Pupae were exposed to one of five target irradiation dose ranges: 0, 40-45, 50-55, 60-65, and 70-75 Gy. Pupae were then assessed using routine quality control measures: flight ability, sex ratio, longevity under nutritional stress, emergence, and reproductive sterility. Irradiation did not have a significant effect on flight ability or sex ratio tests. Longevity under nutritional stress was significantly increased at 70-75 Gy, but no other doses differed from 0 Gy. Emergence was slightly reduced in the 50-55, 60-65, and 70-75 Gy treatments, but 40-45 Gy treatments did not differ from 0 Gy, though confounding temporal factors complicate interpretation. Reproductive sterility remained acceptable (> 99.5%) for all doses--40-45 Gy (99.78%), 50-55 Gy (100%), 60-65 Gy (100%), and 70-75 Gy (99.99%). We recommend that B. tryoni used in sterile insect technique releases be irradiated at a target dose of 50-55 Gy, providing improved quality and undiminished sterility in comparison with the current 70-75 Gy standard while also providing a substantial buffer against risk of under dosing.
Language eng
Field of Research 100202 Biological Control
Socio Economic Objective 960402 Control of Animal Pests, Diseases and Exotic Species in Coastal and Estuarine Environments
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Entomological Society of America
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070466

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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