Sterile Insect Technique (SIT) field trial targeting the suppression of Aedes albopictus in Greece.

IF 2.3 2区 医学 Q2 PARASITOLOGY Parasite Pub Date : 2024-01-01 Epub Date: 2024-03-26 DOI:10.1051/parasite/2024020
Georgios Balatsos, Vasileios Karras, Arianna Puggioli, Fabrizio Balestrino, Romeo Bellini, Dimitrios P Papachristos, Panagiotis G Milonas, Nikos T Papadopoulos, Marco Malfacini, Marco Carrieri, Apostolos Kapranas, Wadaka Mamai, George Mastronikolos, Ioanna Lytra, Jérémy Bouyer, Antonios Michaelakis
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Abstract

The sterile insect technique (SIT) involves releasing large numbers of sterile males to outcompete wild males in mating with females, leading to a decline in pest populations. In the current study, we conducted a suppression trial in Greece against the invasive dengue vector mosquito Aedes albopictus (Skuse) through the weekly release of sterile males for 22 weeks from June to September 2019. Our approach included the long-distance transport of sterile mosquitoes, and their release at a density of 2,547 ± 159 sterile males per hectare per week as part of an area-wide integrated pest management strategy (AW-IPM). The repeated releases of sterile males resulted in a gradual reduction in egg density, reaching 78% from mid-June to early September. This reduction remained between 70% and 78% for four weeks after the end of the releases. Additionally, in the SIT intervention area, the ovitrap index, representing the percentage of traps containing eggs, remained lower throughout the trial than in the control area. This trial represents a significant advance in the field of mosquito control, as it explores the viability and efficacy of producing and transporting sterile males from a distant facility to the release area. Our results provide valuable insights for future SIT programmes targeting Ae. Albopictus, and the methodology we employed can serve as a starting point for developing more refined and effective release protocols, including the transportation of sterile males over long distances from production units to intervention areas.

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以抑制希腊白纹伊蚊为目标的昆虫不育技术(SIT)实地试验。
昆虫不育技术(SIT)是指释放大量不育雄虫,以取代野生雄虫与雌虫交配,从而导致害虫数量下降。在当前的研究中,我们在希腊开展了一项抑制登革热入侵病媒蚊子白纹伊蚊(Skuse)的试验,从2019年6月到9月,每周释放不育雄蚊,为期22周。我们的方法包括长途运输不育蚊子,并以每周每公顷 2,547 ± 159 只不育雄蚊的密度释放不育蚊子,这是全地区虫害综合防治战略(AW-IPM)的一部分。重复释放雄性不育虫后,虫卵密度逐渐降低,从 6 月中旬到 9 月初降低了 78%。释放结束后的四周内,卵密度的降低幅度一直保持在 70% 到 78% 之间。此外,在 SIT 干预区,代表含卵诱捕器百分比的诱卵器指数在整个试验期间一直低于对照区。这项试验是蚊子控制领域的一项重大进展,因为它探索了将不育雄蚊从远处的设施生产并运输到释放区的可行性和有效性。我们的结果为未来针对白纹伊蚊的 SIT 计划提供了宝贵的见解,我们采用的方法可以作为一个起点,用于制定更完善、更有效的释放方案,包括将不育雄蚊从生产单位长途运输到干预区域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Parasite
Parasite 医学-寄生虫学
CiteScore
5.50
自引率
6.90%
发文量
49
审稿时长
3 months
期刊介绍: Parasite is an international open-access, peer-reviewed, online journal publishing high quality papers on all aspects of human and animal parasitology. Reviews, articles and short notes may be submitted. Fields include, but are not limited to: general, medical and veterinary parasitology; morphology, including ultrastructure; parasite systematics, including entomology, acarology, helminthology and protistology, and molecular analyses; molecular biology and biochemistry; immunology of parasitic diseases; host-parasite relationships; ecology and life history of parasites; epidemiology; therapeutics; new diagnostic tools. All papers in Parasite are published in English. Manuscripts should have a broad interest and must not have been published or submitted elsewhere. No limit is imposed on the length of manuscripts, but they should be concisely written. Papers of limited interest such as case reports, epidemiological studies in punctual areas, isolated new geographical records, and systematic descriptions of single species will generally not be accepted, but might be considered if the authors succeed in demonstrating their interest.
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