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Marquereau L, Yamada H, Damiens D, Leclercq A, Derepas B, Brengues C, Dain BW, Lejarre Q, Proudhon M, Bouyer J, Gouagna LC. Upscaling irradiation protocols of Aedes albopictus pupae within an SIT program in Reunion Island. Sci Rep 2024; 14:12117. [PMID: 38802536 DOI: 10.1038/s41598-024-62642-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 05/20/2024] [Indexed: 05/29/2024] Open
Abstract
The implementation of the sterile insect technique against Aedes albopictus relies on many parameters, in particular on the success of the sterilization of males to be released into the target area in overflooding numbers to mate with wild females. Achieving consistent sterility levels requires efficient and standardized irradiation protocols. Here, we assessed the effects of exposure environment, density of pupae, irradiation dose, quantity of water and location in the canister on the induced sterility of male pupae. We found that the irradiation of 2000 pupae in 130 ml of water and with a dose of 40 Gy was the best combination of factors to reliably sterilize male pupae with the specific irradiator used in our control program, allowing the sterilization of 14000 pupae per exposure cycle. The location in the canister had no effect on induced sterility. The results reported here allowed the standardization and optimization of irradiation protocols for a Sterile Insect Technique program to control Ae. albopictus on Reunion Island, which required the production of more than 300,000 sterile males per week.
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Affiliation(s)
- Lucie Marquereau
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France.
| | - Hanano Yamada
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, IAEA Vienna, Wagramer Strasse 5, 1400, Vienna, Austria
| | - David Damiens
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Antonin Leclercq
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Brice Derepas
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Cécile Brengues
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Brice William Dain
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Quentin Lejarre
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Mickael Proudhon
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France
| | - Jeremy Bouyer
- Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, IAEA Vienna, Wagramer Strasse 5, 1400, Vienna, Austria
- ASTRE, CIRAD, INRAE, University of Montpellier, 34398, Montpellier, France
- ASTRE, CIRAD, INRAE, University of Montpellier, Plateforme Technologique CYROI, Sainte-Clotilde, La Réunion, France
| | - Louis Clément Gouagna
- UMR Mivegec (Maladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle), IRD-CNRS-Univ. Montpellier, Représentation IRD la Réunion - PTU, 97495, Sainte Clotilde Cedex, La Réunion, France.
- UMR Mivegec, IRD-Délégation Régionale Occitanie, 34394, Montpellier, France.
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Salim M, Kamran M, Khan I, Saljoqi AUR, Ahmad S, Almutairi MH, Sayed AA, Aleya L, Abdel-Daim MM, Shah M. Effect of larval diets on the life table parameters of dengue mosquito, Aedes aegypti (L.) (Diptera: Culicidae) using age-stage two sex life table theory. Sci Rep 2023; 13:11969. [PMID: 37488190 PMCID: PMC10366198 DOI: 10.1038/s41598-023-39270-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 07/22/2023] [Indexed: 07/26/2023] Open
Abstract
The current study regarding the effects of larval diets on the life table parameters of dengue mosquitoes, Aedes aegypti was conducted under laboratory conditions at 27 ± 2 °C and 60 ± 5% relative humidity at NIFA (Nuclear Institute for Food and Agriculture) Peshawar, Pakistan. The data on life table parameters of Ae. aegypti reared on Diet 1 (replacement diet), Diet 2 (Khan's diet for Anopheles), Diet 3 (Khan's modified diet) and Diet 4 (IAEA diet) were analyzed using the age-stage, two-sex life table software. Diet 4 (IAEA) was used as a control for comparison. The results indicated that significantly maximum percentage of egg hatching of Ae. aegypti was observed when reared on Diet 4 (73.86%) and Diet 3 (72.90%), while less % of egg hatching was recorded in Diet 1 (40.67%) and Diet 2 (55.53%). The data further showed that the Diet 3 had a highest intrinsic rate of increase (r) (0.097 ± 5.68 day-1), finite rate of increase (λ) (1.10 ± 6.26 day-1) and net reproductive rate (R0) (11.99 ± 1.52 eggs/female) followed by Diet 2 and Diet 4. The mean generation time (T) of Ae. aegypti reared on Diet 3 (23.67 ± 0.86 days) and Diet 1 (24.05 ± 0.61 days) was significantly shorter than Diet 2 (26.15 ± 0.71 days) and Diet 4 (26.41 ± 0.38 days). The overall results revealed that Diet 3 showed good results at different life table parameters of Ae. aegypti and can be used as the preferred diet in the Sterile Insect Technique (SIT) where the mass culture of mosquitoes is required.
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Affiliation(s)
- Muhammad Salim
- Department of Plant Protection, Faculty of Crop Protection Sciences, The University of Agriculture, Peshawar, Pakistan.
| | - Muhammad Kamran
- Department of Plant Protection, Faculty of Crop Protection Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Inamullah Khan
- Pakistan Atomic Energy Commission, Nuclear Institute for Food and Agriculture (NIFA), P. O. Box 446, Peshawar, Pakistan
| | - Ahmad Ur Rahman Saljoqi
- Department of Plant Protection, Faculty of Crop Protection Sciences, The University of Agriculture, Peshawar, Pakistan
| | - Sarir Ahmad
- Department of Plant Protection, Faculty of Crop Protection Sciences, The University of Agriculture, Peshawar, Pakistan
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, 23200, Pakistan
| | - Mikhlid H Almutairi
- Department of Zoology, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Amany A Sayed
- Zoology Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Lotfi Aleya
- Chrono-Environnement Laboratory, UMR CNRS 6249, CEDEX, Bourgogne, Franche-Comté University, 25030, Besançon, France
| | - Mohamed M Abdel-Daim
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Muddaser Shah
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Oman
- Department of Botany, Abdul Wali Khan University Mardan, Mardan, 23200, Pakistan
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Malfacini M, Puggioli A, Balestrino F, Carrieri M, Dindo ML, Bellini R. Aedes albopictus Sterile Male Production: Influence of Strains, Larval Diet and Mechanical Sexing Tools. INSECTS 2022; 13:899. [PMID: 36292847 PMCID: PMC9604197 DOI: 10.3390/insects13100899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/28/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
The sterile insect technique (SIT) is a biologically based method of pest control, which relies on the mass production, sterilization, and release of sterile males of the target species. Since females can transmit viruses, it is important to develop a mass rearing system to produce a large number of males with a low presence of females. We evaluated the effects of different strains, larval diets and sexing tools on male productivity and residual female presence for the application of SIT against Aedes albopictus. Strains coming from Italy, Germany, Greece, and Montenegro, with different levels of colonization, were reared with three larval diets: IAEA-BY, BLP-B and SLP-BY. Developed pupae were sexed using two different mechanical methods: sieve or Fay-Morlan separator. The results proved that adoption of the Fay-Morlan separator increased the productivity and limited the female presence. The IAEA-BY diet showed the lowest female contamination. Strains with a high number of breeding generations showed a decreased productivity and an increased female presence. Increased female presence was found only in extensively reared strains and only when the sorting operation was conducted with sieves. We hypothesize that extensive colonization may determine a size reduction which limits the sexing tool efficiency itself.
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Affiliation(s)
- Marco Malfacini
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127 Bologna, Italy
- Department of Medical and Veterinary Entomology, Centro Agricoltura Ambiente “G. Nicoli”, Via Sant’Agata 835, 40014 Crevalcore, Italy
| | - Arianna Puggioli
- Department of Medical and Veterinary Entomology, Centro Agricoltura Ambiente “G. Nicoli”, Via Sant’Agata 835, 40014 Crevalcore, Italy
| | - Fabrizio Balestrino
- Department of Medical and Veterinary Entomology, Centro Agricoltura Ambiente “G. Nicoli”, Via Sant’Agata 835, 40014 Crevalcore, Italy
| | - Marco Carrieri
- Department of Medical and Veterinary Entomology, Centro Agricoltura Ambiente “G. Nicoli”, Via Sant’Agata 835, 40014 Crevalcore, Italy
| | - Maria Luisa Dindo
- Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127 Bologna, Italy
| | - Romeo Bellini
- Department of Medical and Veterinary Entomology, Centro Agricoltura Ambiente “G. Nicoli”, Via Sant’Agata 835, 40014 Crevalcore, Italy
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