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Lima VH, do Nascimento Pinto SM, Barreto LP, Sarria ALF, Mascarin GM, Fernandes ÉKK, Borges LMF. Repellent activity of the non-host semiochemical (E)-2-octenal against Amblyomma sculptum and Amblyomma dubitatum ticks under field conditions. EXPERIMENTAL & APPLIED ACAROLOGY 2024; 92:423-437. [PMID: 38411794 DOI: 10.1007/s10493-023-00880-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/29/2023] [Indexed: 02/28/2024]
Abstract
Amblyomma ticks pose a significant public health threat due to their potential to transmit pathogens associated with rickettsial diseases. (E)-2-octenal, a compound found in donkeys (Equus asinus), exhibits strong repellent properties against Amblyomma sculptum nymphs under laboratory conditions. This study assessed the effectiveness of the (E)-2-octenal in wearable slow-release devices for personal human protection against Amblyomma ticks under natural conditions. Slow-release devices treated with (E)-2-octenal and untreated controls were prepared and tested on two volunteers walking through a tick-infested area in Goiania, Brazil. The experiment was conducted twice daily for three series of 10 days, with each volunteer wearing two devices attached to each leg, one on the ankle and one just above the thigh. Volunteers with control and treated devices exchanged them between rounds. Also, the daily release rate of (E)-2-octenal from the slow-release devices was determined in the laboratory, increasing significantly from 0.77 ± 0.14 µg/day on the first day to 9.93 ± 1.92 µg/day on the 4th day and remaining constant until the 16th day. A total of 5409 ticks were collected from both volunteers. Treated devices resulted in recovering fewer ticks (n = 1,666; 31%) compared to untreated devices (control: n = 3,743; 69%). (E)-2-octenal effectively repelled Amblyomma spp. larvae, A. sculptum adults, and exhibited pronounced repellency against A. dubitatum nymphs and adults. These findings suggest the potential of (E)-2-octenal delivered by wearable slow-release devices as a green-based repellent. Further improvements, however, are necessary to provide better protection for humans against A. sculptum and A. dubitatum in field conditions.
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Affiliation(s)
- Valesca Henrique Lima
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Avenida Esperança S/N, Campus Samambaia, Goiânia, GO, 74690-900, Brazil
| | - Salorrane Miranda do Nascimento Pinto
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Avenida Esperança S/N, Campus Samambaia, Goiânia, GO, 74690-900, Brazil
| | - Lucas Prado Barreto
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Avenida Esperança S/N, Campus Samambaia, Goiânia, GO, 74690-900, Brazil
| | | | | | - Éverton Kort Kamp Fernandes
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Avenida Esperança S/N, Campus Samambaia, Goiânia, GO, 74690-900, Brazil.
| | - Lígia Miranda Ferreira Borges
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Avenida Esperança S/N, Campus Samambaia, Goiânia, GO, 74690-900, Brazil
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Zhou Y, Cao J, Wang Y, Battsetseg B, Battur B, Zhang H, Zhou J. Repellent effects of Chinese cinnamon oil on nymphal ticks of Haemaphysalis longicornis, Rhipicephalus haemaphysaloides, and Hyalomma asiaticum. EXPERIMENTAL & APPLIED ACAROLOGY 2023; 91:497-507. [PMID: 37870735 PMCID: PMC10615911 DOI: 10.1007/s10493-023-00855-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/12/2023] [Indexed: 10/24/2023]
Abstract
The repellent activity of Chinese cinnamon oil (Cinnamomum cassia) on nymphal ticks (Haemaphysalis longicornis Neumann, Rhipicephalus haemaphysaloides Supino, and Hyalomma asiaticum Schulze and Schlottke) was evaluated in a sample Y-tube bioassay. The results were based on the vertical migration of ticks during the host-seek phase and showed a dose-dependent repellent effect of Chinese cinnamon oil on the tested nymphs after 6 h. For H. longicornis, R. haemaphysaloides, and H. asiaticum at the concentrations (vol/vol) of 3, 3, and 1.5%, the repellent percentages over time were 68-97, 69-94, and 69-93%, respectively, which indicated strong repellent activities against ticks, similar to the positive control DEET (N,N-diethyl-3-methylbenzamide). Chinese cinnamon oil exerted the strongest effect on H. asiaticum nymphs. To our knowledge, this is the first study to investigate the repellent effects of Chinese cinnamon oil on ticks. Chinese cinnamon oil has considerable potential and should be developed as a practical tick repellent.
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Affiliation(s)
- Yongzhi Zhou
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| | - Jie Cao
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| | - Yanan Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| | - Badgar Battsetseg
- Institute of Veterinary Medicine, Mongolian University of Life Sciences, Zaisan, Ulaanbaatar, 17024, Mongolia
| | - Banzragch Battur
- Institute of Veterinary Medicine, Mongolian University of Life Sciences, Zaisan, Ulaanbaatar, 17024, Mongolia
| | - Houshuang Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| | - Jinlin Zhou
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
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Auffray T, Arriaga-Jiménez A, Taudière A, Roy LJM, Lapeyre B, Roy L. Attractant Activity of Host-Related Chemical Blends on the Poultry Red Mite at Different Spatial Scales. J Chem Ecol 2023; 49:18-35. [PMID: 36534242 DOI: 10.1007/s10886-022-01399-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/24/2022] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
Many blood-feeding arthropods use volatile organic compounds (VOCs) to detect their vertebrate hosts. The role of chemical interactions in mediating the behavior of hematophagous insects and ticks has been investigated before but remains poorly understood in hematophagous mesostigmatic mites. The poultry red mite Dermanyssus gallinae is an obligatory blood-sucking mesostigmatic mite that feeds on birds and causes damage in poultry farms. We characterized the attractive response of D. gallinae to candidate VOCs previously reported from the odor emitted by living hens. We performed in-vitro choice-test bioassays as well as semi-field and field trials using baited and unbaited traps, in the presence and absence of hens. Among different tested combinations of VOCs, a blend of 5 VOCs (mix1.0) was significantly attractive to our reference population of D. gallinae in vitro, whereas the same individual compounds tested alone were not attractive. Ammonia was attractive on its own and increased the mix1.0 attractiveness. The attractiveness of mix1.0 was confirmed at 'natural' spatial scales in the absence of hens both at the lab and on the farm that provided the reference population. The presence of hens inhibited the mix1.0 attractiveness. The attractive power of mix1.0 was not found in other farms. This research is an important step to advance our understanding of host-parasite interactions in hematophagous mesostigmatic mites and paves the way for developing alternative control tools against D. gallinae by interfering with chemical interactions. Moreover, it underlines the importance of assessing kairomonal activity on different pest populations when developing attract-and-kill systems.
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Affiliation(s)
- Thomas Auffray
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | - Alfonsina Arriaga-Jiménez
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France.,Insect Ecology Lab, School of Environmental and Rural Sciences, University of New England, Armidale, NSW, 2350, Australia
| | - Adrien Taudière
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | | | - Benoît Lapeyre
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | - Lise Roy
- CEFE, Univ Paul Valéry Montpellier 3, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France.
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Masier S, Taudière A, Roy LJM, Carrasco D, Barnagaud JY, Planchon C, Soulié AS, Sleeckx N, Roy L. High-throughput behavioral phenotyping of tiny arthropods: Chemosensory traits in a mesostigmatic hematophagous mite. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:46-62. [PMID: 36052497 PMCID: PMC10087610 DOI: 10.1002/jez.2651] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 12/15/2022]
Abstract
Pest management using attractive and/or repellent semiochemicals is a key alternative to synthetic insecticides. Its implementation requires a good understanding of the intra- and interspecific chemical interactions of arthropod pests, their interactions with their abiotic environment, as well as their evolutionary dynamics. Although mites include many pest species and biocontrol agents of economic importance in agriculture, their chemical ecology is largely understudied compared to insects. We developed a high-throughput ethomics system to analyze these small arthropods and conducted a study on Dermanyssus gallinae, a problematic poultry parasite in the egg industry. Our purpose was to elucidate the role played by host-derived odorants (synthetic kairomone) and conspecific odorants (mite body odors) in D. gallinae. After validating our nanocomputer controlled olfactometric system with volatile semiochemicals of known biological activity, we characterized response traits to kairomonal and/or pheromonal volatile blends in mites from different populations. We were able to accurately characterize the repulsion or attraction behaviors in >1000 individual specimens in a standardized way. Our results confirm the presence of a volatile aggregation pheromone emitted by D. gallinae and bring new elements to the effect of odor source presentation. Our results also confirm the attractive effect on Dermanyssus gallinae of a blend of volatile compounds contained in hen odor, while highlighting a repellent effect at high concentration. Significant interindividual and interpopulation variation was noted particularly in responses to synthetic kairomone. This information lays a valuable foundation for further exploring the emergence risk of resistance to semiochemicals.
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Affiliation(s)
- Stefano Masier
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Adrien Taudière
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | | | - David Carrasco
- MiVEGEC, University of Montpellier, IRD, CNRS, Montpellier, France
| | - Jean-Yves Barnagaud
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Camille Planchon
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Anne-Sophie Soulié
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | | | - Lise Roy
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
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Zhang J, Liang Q, Xia Y, Kong D, Wang C, Mo S, He Y, Wang D. Behavioral Response of the Tropical Bed Bug, Cimex hemipterus (Hemiptera: Cimicidae) to Carbon Dioxide. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:2198-2203. [PMID: 34410423 DOI: 10.1093/jee/toab159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Indexed: 06/13/2023]
Abstract
Bed bugs (Cimex spp.) (Hemiptera: Cimicidae) are obligatory blood-sucking insects. Research on their behavioral response to host-derived olfactory cues will be helpful for designing more effective management tools. However, previous studies mainly focused on Cimex lectularius L., while the related studies on Cimex hemipterus (F.) have been rarely reported. In this study, we evaluated the behavioral responses of C. hemipterus to one of the crucial host-derived cues - carbon dioxide (CO2), at various concentrations. Pitfall traps baited with CO2 captured significantly more C. hemipterus (72%) than unbaited ones (28%). In the Y-tube test, bed bugs' exploratory activity (response rate) gradually decreased (from 70 to 27%) as the CO2 concentration increased (from 0.9 to 14.5%); and bed bugs exhibited a significant attraction to CO2 when the tested CO2 concentrations were between 0.9 and 7.3%. Cimex hemipterus were no longer attracted to CO2 after their antennae or mouthparts or both antennae and mouthparts were removed. In conclusion, C. hemipterus are attracted to CO2, and both antennae and mouthparts are important for CO2 perception.
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Affiliation(s)
- Jingsheng Zhang
- Department of Entomology, South China Agricultural University, Guangzhou, China
- Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou, China
- Engineering Research Center of Biological Control, Ministry of Education, Guangzhou, China
| | - Qiling Liang
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Yanwei Xia
- Department of Entomology, South China Agricultural University, Guangzhou, China
- Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou, China
- Engineering Research Center of Biological Control, Ministry of Education, Guangzhou, China
| | - Delong Kong
- Department of Entomology, South China Agricultural University, Guangzhou, China
- Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou, China
- Engineering Research Center of Biological Control, Ministry of Education, Guangzhou, China
| | - Changlu Wang
- Department of Entomology, Rutgers University, New Brunswick, NJ, USA
| | - Shujie Mo
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Yurong He
- Department of Entomology, South China Agricultural University, Guangzhou, China
- Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou, China
- Engineering Research Center of Biological Control, Ministry of Education, Guangzhou, China
| | - Desen Wang
- Department of Entomology, South China Agricultural University, Guangzhou, China
- Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou, China
- Engineering Research Center of Biological Control, Ministry of Education, Guangzhou, China
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