Gerard Duvallet- PhD
- Professor Emeritus at Université Paul-Valéry Montpellier
Gerard Duvallet
- PhD
- Professor Emeritus at Université Paul-Valéry Montpellier
Developing a new strategy to control stable flies: trapping the adults and release of parasitoids and predator acari.
About
179
Publications
63,903
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Introduction
Developing a new strategy to control stable flies: trapping the adults and release of parasitoids for pupal stage.
Development of new and efficient traps for stable flies.
Current institution
Additional affiliations
September 1999 - present
December 2018 - present
Pest Control Gerard Duvallet
Position
- Administrator
Description
- This is my own company. Expertise for pest control.
January 2002 - November 2020
Position
- Professor
Description
- Research Projects on the ecology of Stable flies Ecology / Phylogeny / Systematics / Control of Stomoxyine flies in Thailand
Publications
Publications (179)
Les stomoxes, mouches piqueuses présentes dans tous les élevages et dans la nature, sont devenus résistants aux insecticides disponibles, partout où cela a été testé. Or leur impact sur le bien-être des animaux, la productivité des fermes et la transmission possible d’agents pathogènes a un coût économique très important, trop souvent méconnu. Plus...
Haematobosca is a genus of biting fly within the subfamily Stomoxyinae of the family Muscidae. It is currently recognized to include 16 species worldwide. These species, acting as ectoparasites, are considered to have significant importance in the veterinary and medical fields. To address the color polymorphism related to the genus Haematobosca in...
Simple Summary
Stable flies, known for inflicting painful bites on livestock, cause substantial economic losses worldwide by hindering animal feeding and potentially transmitting diseases. Current chemical control methods face challenges of resistance and environmental risks. To address this, an integrated pest management approach is proposed and t...
In the subfamily Stomoxyinae there are currently 18 recognized Stomoxys species, plus two subspecies. Most Stomoxys knowledge was gained through studies with S. calcitrans, a cosmopolitan species, economic pest, and vector. Other Stomoxys spp. are known only from a few trapped adult specimens. Herein, the Stomoxys spp. have been grouped by their ec...
To propose an integrated pest management solution for the control of the stable
fly: Using a combination of natural enemies to control immature stages and a
specific trapping system for the adults.
Les stomoxes (Diptera : Muscidae : Stomoxyinae) sont des insectes hématophages d'importance médicale et vétérinaire. Cette sous-famille des Stomoxyinae comprend 52 espèces connues, réparties en 10 genres. Trois genres, Stomoxys, Haematobosca et Haematobia représentent des ectoparasites du bétail causant d’importantes pertes économiques dans les éle...
Les stomoxes (Diptera : Muscidae : Stomoxyinae) sont des insectes hématophages dimportance médicale et vétérinaire. Cette sous-famille des Stomoxyinae comprend 52 espèces connues, réparties en 10 genres. Trois genres, Stomoxys, Haematobosca et Haematobia représentent des ectoparasites du bétail causant d’importantes pertes économiques dans les élev...
Simple Summary
The stable fly, Stomoxys calcitrans (Diptera: Muscidae), is the predominant Stomoxys spp. in Thailand and is considered a pest for livestock, pets, wildlife, and occasionally humans. This study investigated the phenotypic variation in the wing size and shape of S. calcitrans populations from different geographical regions in Thailand...
Tabanids and stable flies are important nuisances to livestock and sometimes humans. Nzi, Vavoua, and Biconical traps or insecticide‐impregnated blue screens are commonly used to attract and catch these flies. Such devices are made of a specific cotton or cotton‐polyester phthalogen blue fabric acting as a visual attractant. However, the cost of co...
Simple Summary
The haematophagous fly Stomoxys calcitrans is considered as a major pest of livestock worldwide. Insecticides have been extensively used to control this pest but resistance to these chemical compounds is now reported in many countries. Therefore, a more sustainable and efficient control is needed. New blue polyethylene sticky screens...
The genus Haematobosca Bezzi, 1907 (Diptera: Muscidae) contains haematophagous flies of veterinary importance. A new fly species of this genus was recognised from northern Thailand based on morphological characters and described as Haematobosca aberrans Pont, Duvallet & Changbunjong, 2020. In the present study, the mitochondrial cytochrome c oxidas...
Résumé
En entomologie médicale et vétérinaire, les moustiques ont une place importante à la fois comme sources de nuisances en lien avec leur hématophagie, mais aussi comme vecteurs potentiels de pathogènes. Sont abordés ici la diversité des moustiques dont près de 3 500 espèces différentes sont connues, mais aussi des pathogènes transmis. Environ...
Chrysops spp. or deer flies (Diptera: Tabanidae) are hematophagous flies of medical and veterinary importance and some species are important vectors of Trypanosoma evansi, the causative agent of surra in Thailand. However, data regarding deer fly species and their molecular identification are limited. Accurate species identification will indicate t...
Article Info AGRICULTURE AND NATURAL RESOURCES The Tabanidae family consists globally of 4,400 known species of biting flies, with 83 species in France. Horseflies were captured with 7 H-Traps on a farm near Montélimar, southern France, during 21 wk from May to September 2017. In total, 54,618 specimens were captured belonging to the Chrysopsinae,...
A new species of biting-fly from northern Thailand is described as Haematobosca aberrans sp. nov. (Muscidae). It differs from all known species of Haematobosca by the absence of the anterior katepisternal seta.
The rangelands of the Vina Division on the Adamawa Plateau are densely infested with Stomoxyinae, but little is known about their species composition and ecology. A trap-transect survey was carried out in three villages: Galim, Mbidjoro, and Velambai, using Nzi ( n = 3), Vavoua ( n = 3), and Biconical ( n = 3) traps, all baited with octenol. Three...
Stable fly collections were conducted to study the species composition and daytime activity of Stomoxys spp. (Diptera: Muscidae) in Peninsular Thailand (Songkhla, Trang, Pattalung, Nakon Si Thammarat, and Satun provinces). Vavoua traps were used for fly collections in wet and dry seasons each year. Four Stomoxys species were found, S. calcitrans (L...
Stomoxyinae flies (Diptera: Muscidae) are cosmopolitan obligate hematophagous insects of medical and veterinary importance. The subfamily Stomoxyinae includes 51 known species within 10 genera. Five genera, Stomoxys, Haematobosca, Haematobia, Haematostoma, and Stygeromyia, represent important livestock pests causing substantial economic losses in t...
Anecdotal evidence of pyrethroid insecticide product failure for the control of stable fly [Stomoxys calcitrans (L.)] populations in the United States and worldwide prompted us to evaluate the frequency of knockdown resistance (kdr)-type polymorphisms within the voltage-sensitive sodium channel (Vssc) gene of field collected specimens from the Unit...
Stomoxys calcitrans (Diptera: Muscidae), is an important vector of lumpy skin disease and bovine besnoitiosis in Europe. Control of this biting fly could represent a keystone in the containment of this emerging disease. Reports of insecticide resistance in S. calcitrans are scarce in Europe. Therefore, the purpose of this study was to evaluate the...
Adult Brachycera can affect dairy cattle through their feeding behaviour. The main families of veterinary importance are Tabanidae, Athericidae, Rhagionidae, Muscidae, Glossinidae and Hippoboscidae. Non-biting flies such as house flies and face flies ingest liquids from animal tissues using sponging mouthparts, whereas biting flies such as tabanids...
L'étude du contenu pollinique de deux échantillons prélevés, soit sur un spécimen de Megachile sculpturalis Smith, 1853, soit dans la loge d'un "hôtel à insectes" fréquenté par cet Hyménoptère, livre des indications préli-minaires sur le comportement de butinage et sur le régime alimentaire de cette abeille invasive dont la première observation en...
The number of already known arthropod species is almost two million and account for over 80% of all living animal species. Most of them do not affect humans and are essential in the maintenance of the ecosystem. However, some arthropods are pests of cultivated plants and pests of stored products. Some can be pathogen themselves as ectoparasites. So...
The number of already known arthropod species is almost two million and account for over 80% of all living animal species. Most of them do not affect humans and are essential in the maintenance of the ecosystem. However, some arthropods are pests of cultivated plants and pests of stored products. Some can be pathogen themselves as ectoparasites. So...
Fiche détaillée de l'ouvrage : http://www.quae.com/fr/r5107-entomologie-medicale-et-veterinaire.html
Dans un contexte d’expansion générale des maladies transmises par les insectes, cet ouvrage de référence présente un état actualisé des connaissances sur tous les groupes d’arthropodes d’intérêt médical et vétérinaire. Pragmatique et opérationnel,...
In order to circumscribe the breeding sites of stomoxes in the Makokou region, eight potentially favorable environments were sampled from January to June 2007 in three habitats: primary and secondary forest (natural environments) and the anthropic environment (artificial or disturbed areas). In the primary forest, three types of substrates were col...
The parasitic diseases discussed elsewhere in this issue of the Scientific and Technical Review are not the only ones to make use of biological vectors (such as mosquitoes or ticks) or mechanical vectors (such as horse flies or Stomoxys flies). The authors discuss two major groups of vector-borne parasitic diseases: firstly, helminthiasis, along wi...
In order to minimize risks of pathogen transmission with the development of ecotourism in Gabon, a seasonal inventory has been performed in five contrasted biotopes in Ivindo (INP) and Moukalaba-Doudou (MDNP) National Parks. A total of 10,033 hematophagous flies were captured. The Glossinidae, with six different species identified, was the most abu...
Les rythmes circadiens des insectes hématophages constituent un facteur épidémiologique essentiel car ils dé terminent les moments de la journée où s’effectue le contact entre l’hôte vertébré et l’insecte. Afin de déterminer les périodes d’activité journalière des stomoxes dans le Parc National de l’Ivindo au Nordest du Gabon, nous avons réalisé...
Le réchauffement climatique joue un rôle, encore insuffisamment analysé, sur les populations de vecteurs. Pourtant, les maladies à transmission vectorielle sont toujours un lourd fardeau pour le développement des régions tropicales, même si des progrès considérables ont été réalisés. Ces maladies étaient présentes également dans certains foyers des...
The parasitic diseases discussed elsewhere in this issue of the Scientific and Technical Review are not the only ones to make use of biological vectors (such as mosquitoes or ticks) or mechanical vectors (such as horse flies or Stomoxys flies). The authors discuss two major groups of vector-borne parasitic diseases: firstly, helminthiasis, along wi...
Abstract Ticks are arthropods and the most important vectors of major human diseases after mosquitoes. Due to their impact on public health, in vitro and in vivo assays have been developed to identify molecules with repellent activities on ticks. Repellents are useful to reduce tick bite exposure and the potential transmission of pathogens; they ca...
Resistance to conventional synthetic pesticides has been widely reported in ticks, parasitic mites and other pests of veterinary and medical significance. New and novel approaches to manage these pests are therefore needed to ensure efficient control programmes that can be implemented now and in the future. Recent research in this area has focused...
Stomoxys flies are mechanical vectors of pathogens present in the blood and skin of their animal hosts, especially livestock, but occasionally humans. In livestock, their direct effects are disturbance, skin lesions, reduction of food intake, stress, blood loss, and a global immunosuppressive effect. They also induce the gathering of animals for mu...
Lemongrass oil (Cymbopogon citratus) is an effective repellent against mosquitoes (Diptera: Culicidae) and house flies (Diptera: Muscidae). In this study, its effectiveness was assessed on stable flies (Diptera: Muscidae) in laboratory conditions. First, we demonstrated that lemongrass oil is an active substance for antennal olfactory receptor cell...
The vertical distribution of Stomoxys spp. was studied in a rainforest area, Ipassa-Makokou biosphere reserve located in the Ivindo National Park of Gabon. From April to June 2006, Vavoua traps were set out during 15 consecutive days per month at different heights above ground level corresponding to vertical layers of rainforest: 50 cm, 10, 20 and...
Understanding the pattern of abundance of vector populations is important to control the potential of transmission of associated pathogens. The pattern of abundance of Stomoxys Geoffroy, an ubiquitous blood-sucking fly, is poorly known in tropical Africa. In this study, we investigated the spatio-temporal pattern of abundance of the Stomoxys genus...
Effective control of mosquito borne diseases has proven extremely difficult with both vector and pathogen remaining entrenched and expanding in many disease endemic areas. When lacking an effective vaccine, vector control methods targeting both larval habitats and adult mosquito populations remain the primary strategy for reducing risk. Aedes albop...
A study of species diversity of Stomoxys spp. and diurnal variations of activity of the most abundant was performed during a one year period at a local dairy cattle farm in Wang Nam Khiao District, Nakhon Ratchasima Province, Thailand. Four species of stomoxyine flies were morphologically identified, including Stomoxys indicus Picard 1908, S. calci...
L’actualité récente avec les premiers cas de transmission autochtone par Aedes albopictus des virus chikungunya et de la dengue dans le sud de la France continentale, s’ajoutant aux nuisances et vecteurs potentiels que l’on peut rencontrer lors de voyages ou de missions plus ou moins longues dans les régions à climat chaud, a montré l’intérêt d’une...
Introduction The International Master in medical and veterinary Entomology (IME) is a teaching programme for 2nd year Master students on vector systematics, biology and ecology, population genetics, genomics and control. The IMEs objective is to prepare future researchers in areas of public health, veterinary, teaching and research.
Materials and...
Après avoir passé en revue plusieurs groupes d'espèces parmi la flore, la faune et la fonge, interrogeons-nous à présent sur la nature des interactions entre l'homme et la nature. Notre monde vit actuellement une période marquée par des changements globaux, donc à l'échelle du globe. Ceux-ci sont de différents types : climatiques, modifications des...
Recent events with the first cases of local transmission of chikungunya and dengue fever virus in southern France by Aedes albopictus, adding to the nuisance and potential vectors that can be encountered when traveling in tropical or sub-tropical countries, has shown the value of a reflection on the Personal protection against vectors (PPAV). It is...
The genus Stomoxys Geoffroy (Diptera; Muscidae) contains species of parasitic flies that are of medical and economic importance. We conducted a phylogenetic analysis including 10 representative species of the genus including multiple exemplars, together with the closely related genera Prostomoxys Zumpt, Haematobosca Bezzi, and Haematobia Lepeletier...
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Stomoxys calcitrans (Diptera: Muscidae: Stomoxyini), a synanthropic fly with a worldwide distribution, is recognized to have an important medical and veterinary impact. We conducted a phylogeographic analysis based on several populations from five major zoogeographic regions of the world in order to analyse population genetic structure of S. calcit...
Stomoxyine flies (Stomoxys spp.) were collected in 10 localities of Thailand using the Vavoua traps. These localities represented four major ecological settings, as follows: small local dairy farms, large industrial dairy farms, a national park, and one elephant conservation area. Three species of stable flies were identified in the following propo...
Starch gel electrophoresis of isozymes was used to estimate gene flow among nine populations of Stomoxys calcitrans (L.) (Diptera: Muscidae) from Thailand. Of the 13 putative loci, nine polymorphic loci were detected. Limited genetic differentiation among populations was observed (F(ST) = 0.060). The highest level of polymorphism was observed in fl...
Diurnal sampling of stable flies (Stomoxys spp.) was carried out in ten localities throughout Thailand in 2007. Vavoua traps were used to lure and capture flies in ten provinces of the country, representing four major ecological settings: six small local dairy farms; two large industrial dairy farms; one national park; and one wildlife conservation...
Réunit les interventions du séminaire du 19 novembre 2009, tenu à SupAgro, Montpellier et organisé par l'Association française de pastoralisme et le Centre d'écologie fonctionnelle et évolutive. - Numéro hors-série de la revue "Pastum", ISSN 1154-4449, juillet 2010
Geraniol is a bioactive component found in Palmarosa essential oil which has previously demonstrated good repellence to cattle ticks, mosquitoes and sand flies. The toxicity of geraniol to Dermanyssus gallinae, the most economically deleterious ectoparasite of laying hens in Europe, was studied in vitro in the laboratory, Exposure of D. gallinae to...
Geraniol is a bioactive component found in Palmarosa essential oil which has previously demonstrated good repellence to cattle ticks, mosquitoes and sand flies. The toxicity of geraniol to Dermanyssus gallinae, the most economically deleterious ectoparasite of laying hens in Europe, was studied in vitro in the laboratory. Exposure of D. gallinae to...
A field trial on the efficacy of 1% geraniol (Fulltec) spray against ticks has been carried out in two farms near Rabat (Morocco). Results clearly revealed that 1% geraniol has a preventive effect against Hyalomma ticks. Comparison of geraniol sprayed cows with control herd showed a reduction of mean number of ticks per animal of 98.4%, 97.3% and 9...
Isozymes from five wild-caught Stomoxys calcitrans (L.) were compared using starch gel electrophoresis to estimate the rates of gene flow between and among S. calcitrans populations from five different geographic regions of Thailand. Among ten enzyme systems, 13 putative loci and 10 polymorphisms were detected. Limited genetic differentiation among...
To investigate whether different landscapes could affect genetic diversity and structure of the cosmopolitan diptera Stomoxys calcitrans, populations from Gabon and southern France were studied using dominant amplified fragment length polymorphism (AFLP) markers. Gabon is characterized by a forested closed landscape, and southern France by an open...
To determine the origin of stomoxyine fly bloodmeals (Diptera: Muscidae) in Gabon, 1,021 flies belonging to seven different species of Stomoxys were captured and dissected in the area of Makokou. In total, 798 were not blood-fed and 223 bloodmeals could be gathered on filter paper. The identification of the origin of these meals was made by amplifi...
Pour déterminer l’origine des repas de sang des stomoxes (Diptera : Muscidae) au Gabon, 1 021 mouches appartenant à sept espèces différentes ont été capturées et disséquées dans la région de Makokou. Au total, 798 n’étaient pas gorgées et 223 repas de sang ont pu être recueillis sur papier filtre. L’identification de l’origine de ces repas a été fa...
This paper summarizes the geography of sleeping sickness disease (or Human African Trypanosomiasis, HAT) over the last 100 years in West Africa, with the objective of identifying today's priority areas for the sleeping sickness surveillance. The history and geography of the disease are based on a bibliographic review of old reports and recent publi...
The stomoxyine flies are hematophagous diptera and potential vectors of various pathogenic agents. Like those of the Afrotropical Region, the stomoxyine flies of Gabon remain nearly unknown. For these reasons, an entomological survey was conducted in a transverse way in eight localities representative of the various ecological zones of Gabon. The s...
To review the geography and history of sleeping sickness (Human African trypanosomiasis; HAT) over the past 100 years in West Africa, to identify priority areas for sleeping sickness surveillance and areas where HAT no longer seems active.
History and geography of HAT were summarized based on a review of old reports and recent publications and on r...
Adult populations of stable flies were sampled along an altitudinal transect in Reunion Island to determine whether higher temperatures were associated with: (a) higher numbers of flies; (b) a longer season of infestation, and/or (c) different responses to warming in the cosmopolitan Stomoxys calcitrans (L) and the tropical Stomoxys niger niger Mac...
Following the discovery of four cases of African human trypanosomiasis, an entomological survey was conducted along the Mouhoun river in southwest Burkina Faso to collect Glossina palpalis gambiensisand G.tachinoides.Among 226 flies dissected, 4.87% (eleven individuals) were infected in midgut or proboscis, but never in the salivary glands. Polymer...
Les stomoxes (Stomoxys spp.) sont des diptères hématophages, vecteurs potentiels de divers agents pathogènes. Comme ceux de la région afrotropicale en général, les stomoxes du Gabon demeurent mal connus. Pour ces raisons, une enquête entomologique a été conduite de façon transversale dans huit localités représentatives des diverses zones écologique...
Questions
Questions (3)
Dear Colleagues,
A huge nuisance due to Phoridae flies has been observed around a plant recycling bottles of plastic in the southwestern part of France. Neighbours of this plant complain a lot about that. And I was asked to find solutions to control those Phoridae without use of traditional insecticides because this recycled plastic is used in the food chain. In a first trial, I spayed fermented oil garlic suspension on the potential larval sites, but without a great success. Perhaps I missed some larval sites... or this garlic product doesn't work....
Have you had already some experience in controlling this kind of nuisance ?
Many thanks in advance and Best Regards,
Gerard Duvallet
Hi,
What would be in your experience the best attractant(s) to use in traps (mainly H-Trap) to increase the capture of horse flies for control.
Many thanks in advance
Regards, Gerard
I have o lot of Tabanids from Annaba area (Algeria) to identify. Some of them can be identified by the Chvala et al. (1972) key of European horse-flies. But I have a lot of Atylotus or Haematopota specimens which are not in the European fauna. I have not found, for example, complete descriptions of Atylotus farinosus, A. kroeberi or Haematopota algira or H. crewei.
Can you give me some advice.
Many thanks in advance.
Gerard
