The sterile insect technique for the management of the spotted wing drosophila, Drosophila suzukii: Establishing the optimum irradiation dose
The spotted wing drosophila Drosophila suzukii Matsumura (Diptera: Drosophilidae), a pest of berries stone fruits, invaded North America and Europe in 2008. Current control methods rely mainly on insecticides. The sterile insect technique (SIT) has potential as an additional control tactic for the i...
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| creator | Lanouette, Geneviève Brodeur, Jacques Fournier, François Martel, Véronique Vreysen, Marc Cáceres, Carlos Firlej, Annabelle |
| description | The spotted wing drosophila Drosophila suzukii Matsumura (Diptera: Drosophilidae), a pest of berries stone fruits, invaded North America and Europe in 2008. Current control methods rely mainly on insecticides. The sterile insect technique (SIT) has potential as an additional control tactic for the integrated management of D. suzukii. As a step towards the development of the SIT, this study aimed at finding the optimum irradiation dose to sterilize D. suzukii under controlled laboratory conditions. Four-day-old D. suzukii pupae were irradiated 12 to 24 hours prior to adult emergence in a 60Co Gamma Cell 220 and in a 137Cs Gamma Cell 3000 with doses of 30, 50, 70, 80, 90, 100 or 120 Gy. Emergence rate (88.1%), percent of deformed flies (4.0%) and survival curves were not affected by the tested irradiation doses. However, some reproductive parameters of the flies were affected by irradiation. Females irradiated with a dose of 50 Gy or more had almost no fecundity. When non-irradiated females were mated with irradiated males, egg hatch decreased exponentially with irradiation dose from 82.6% for the untreated control males to 4.0% for males irradiated with 120 Gy. Mortality of F1 individuals from the irradiated treatment also occurred during larval and pupal stages, with an egg to adult survival of 0.2%. However, descendants produced by the irradiated generation were fertile. These results are an encouraging first experimental step towards the development of the SIT for the management of D. suzukii populations. |
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Current control methods rely mainly on insecticides. The sterile insect technique (SIT) has potential as an additional control tactic for the integrated management of D. suzukii. As a step towards the development of the SIT, this study aimed at finding the optimum irradiation dose to sterilize D. suzukii under controlled laboratory conditions. Four-day-old D. suzukii pupae were irradiated 12 to 24 hours prior to adult emergence in a 60Co Gamma Cell 220 and in a 137Cs Gamma Cell 3000 with doses of 30, 50, 70, 80, 90, 100 or 120 Gy. Emergence rate (88.1%), percent of deformed flies (4.0%) and survival curves were not affected by the tested irradiation doses. However, some reproductive parameters of the flies were affected by irradiation. Females irradiated with a dose of 50 Gy or more had almost no fecundity. When non-irradiated females were mated with irradiated males, egg hatch decreased exponentially with irradiation dose from 82.6% for the untreated control males to 4.0% for males irradiated with 120 Gy. Mortality of F1 individuals from the irradiated treatment also occurred during larval and pupal stages, with an egg to adult survival of 0.2%. However, descendants produced by the irradiated generation were fertile. These results are an encouraging first experimental step towards the development of the SIT for the management of D. suzukii populations.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0180821</identifier><identifier>PMID: 28957331</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Agrochemicals ; Animals ; Berries ; Biology and Life Sciences ; Cesium radioisotopes ; Control ; Control methods ; Crops ; Crosses, Genetic ; Deformation ; Distribution ; Drosophila ; Drosophila - physiology ; Drosophila - radiation effects ; Drosophila suzukii ; Emergence ; Fecundity ; Female ; Females ; Fertility - radiation effects ; Fruits ; Gamma Rays ; Health aspects ; Insect Control - methods ; Insecticides ; Insects ; Ionizing radiation ; Irradiation ; Laboratories ; Longevity ; Male ; Males ; Management ; Medicine and Health Sciences ; Methods ; Mutation ; Ovum - radiation effects ; Pest control ; Physiological aspects ; Radiation Dosage ; Research and Analysis Methods ; Sperm ; Sterilized organisms ; Survival ; Survival Analysis ; Wings, Animal - physiology</subject><ispartof>PloS one, 2017-09, Vol.12 (9), p.e0180821-e0180821</ispartof><rights>COPYRIGHT 2017 Public Library of Science</rights><rights>2017 Lanouette et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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Current control methods rely mainly on insecticides. The sterile insect technique (SIT) has potential as an additional control tactic for the integrated management of D. suzukii. As a step towards the development of the SIT, this study aimed at finding the optimum irradiation dose to sterilize D. suzukii under controlled laboratory conditions. Four-day-old D. suzukii pupae were irradiated 12 to 24 hours prior to adult emergence in a 60Co Gamma Cell 220 and in a 137Cs Gamma Cell 3000 with doses of 30, 50, 70, 80, 90, 100 or 120 Gy. Emergence rate (88.1%), percent of deformed flies (4.0%) and survival curves were not affected by the tested irradiation doses. However, some reproductive parameters of the flies were affected by irradiation. Females irradiated with a dose of 50 Gy or more had almost no fecundity. When non-irradiated females were mated with irradiated males, egg hatch decreased exponentially with irradiation dose from 82.6% for the untreated control males to 4.0% for males irradiated with 120 Gy. Mortality of F1 individuals from the irradiated treatment also occurred during larval and pupal stages, with an egg to adult survival of 0.2%. However, descendants produced by the irradiated generation were fertile. These results are an encouraging first experimental step towards the development of the SIT for the management of D. suzukii populations.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>28957331</pmid><doi>10.1371/journal.pone.0180821</doi><tpages>e0180821</tpages><orcidid>https://orcid.org/0000-0003-4313-3447</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | PloS one, 2017-09, Vol.12 (9), p.e0180821-e0180821 |
| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_1944275601 |
| source | MEDLINE; DOAJ Directory of Open Access Journals; Public Library of Science (PLoS); EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Agrochemicals Animals Berries Biology and Life Sciences Cesium radioisotopes Control Control methods Crops Crosses, Genetic Deformation Distribution Drosophila Drosophila - physiology Drosophila - radiation effects Drosophila suzukii Emergence Fecundity Female Females Fertility - radiation effects Fruits Gamma Rays Health aspects Insect Control - methods Insecticides Insects Ionizing radiation Irradiation Laboratories Longevity Male Males Management Medicine and Health Sciences Methods Mutation Ovum - radiation effects Pest control Physiological aspects Radiation Dosage Research and Analysis Methods Sperm Sterilized organisms Survival Survival Analysis Wings, Animal - physiology |
| title | The sterile insect technique for the management of the spotted wing drosophila, Drosophila suzukii: Establishing the optimum irradiation dose |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T05%3A38%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20sterile%20insect%20technique%20for%20the%20management%20of%20the%20spotted%20wing%20drosophila,%20Drosophila%20suzukii:%20Establishing%20the%20optimum%20irradiation%20dose&rft.jtitle=PloS%20one&rft.au=Lanouette,%20Genevi%C3%A8ve&rft.date=2017-09-28&rft.volume=12&rft.issue=9&rft.spage=e0180821&rft.epage=e0180821&rft.pages=e0180821-e0180821&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0180821&rft_dat=%3Cgale_plos_%3EA507102942%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1944275601&rft_id=info:pmid/28957331&rft_galeid=A507102942&rft_doaj_id=oai_doaj_org_article_642c957ea32d488b83d69d029b52acf7&rfr_iscdi=true |