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https://www.readbyqxmd.com/read/28691833/-the-common-bed-bug-cimex-lectularius-biology-medical-relevance-possibilities-for-the-detection-and-control
#1
V Rupeš, J Vlčková, O Holý, D Horáková, K Azeem, H Kollárová
Bed bugs have become a major concern worldwide in the 21st century and are therefore intensively investigated. The new findings not only extend the knowledge of their biology, medical relevance, and causes of the resurgence, but also can be used in bed bug management. A brief overview is provided of some of the most important research results and opinions, published in the last few years in prestigious international journals.
2017: Epidemiologie, Mikrobiologie, Imunologie
https://www.readbyqxmd.com/read/28680688/host-association-and-selection-on-salivary-protein-genes-in-bed-bugs-and-related-blood-feeding-ectoparasites
#2
Benoit Talbot, Ondřej Balvín, Maarten J Vonhof, Hugh G Broders, Brock Fenton, Nusha Keyghobadi
Reciprocal selective pressures can drive coevolutionary changes in parasites and hosts, and result in parasites that are highly specialized to their hosts. Selection and host co-adaptation are better understood in endoparasites than in ectoparasites, whose life cycles may be more loosely linked to that of their hosts. Blood-feeding ectoparasites use salivary proteins to prevent haemostasis in the host, and maximize energy intake. Here we looked for signals of selection in salivary protein genes of ectoparasite species from a single genus (Cimex) that associate with a range of hosts including mammals (bats and humans) and birds (swallows)...
June 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28676765/molecular-basis-of-n-n-diethyl-3-methylbenzamide-deet-in-repelling-the-common-bed-bug-cimex-lectularius
#3
Feng Liu, Xiaoming Xia, Nannan Liu
As the most extensively used chemical repellent, N,N-diethyl-3-methylbenzamide (DEET) displayed repellency to a wide range of insects, including the common bed bug, Cimex lectularius. While the neuronal or molecular basis involved in DEET's repellency have been majorly focused on mosquitos and fruit flies, DEET's repellency to the common bed bug is largely unreached. To gain new insights into the cellular and molecular mechanisms in DEET's repellency to the common bed bug, we characterized the neuronal response of bed bugs to DEET, identified the olfactory receptors targeted by DEET and demonstrated the interfering effect of DEET on bed bug's responses to human odorants...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28662724/insecticide-resistance-and-resistance-mechanisms-in-bed-bugs-cimex-spp-hemiptera-cimicidae
#4
REVIEW
Kai Dang, Stephen L Doggett, G Veera Singham, Chow-Yang Lee
The worldwide resurgence of bed bugs [both Cimex lectularius L. and Cimex hemipterus (F.)] over the past two decades is believed in large part to be due to the development of insecticide resistance. The transcriptomic and genomic studies since 2010, as well as morphological, biochemical and behavioral studies, have helped insecticide resistance research on bed bugs. Multiple resistance mechanisms, including penetration resistance through thickening or remodelling of the cuticle, metabolic resistance by increased activities of detoxification enzymes (e...
June 29, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28607409/functional-characterization-of-aquaporin-like-genes-in-the-human-bed-bug-cimex-lectularius
#5
Hitoshi Tsujimoto, Joyce M Sakamoto, Jason L Rasgon
The bed bug Cimex lectularius is a blood-feeding re-emerging annoyance pest insect that has the ability to transmit Trypanosoma cruzi under experimental laboratory conditions. Aquaporins (AQPs) are water channel proteins that are essential in biological organisms. C. lectularius are constantly exposed to water-related stress, suggesting that AQPs may offer novel control avenues. We identified and cloned four AQPs from C. lectularius, assessed tissue and lifestage-specific expression, and characterized biochemical functions in vitro and in vivo...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28541568/effect-of-feeding-history-and-time-elapsed-from-field-collection-on-the-movement-behavior-and-response-to-stimulation-in-cimex-lectularius-hemiptera-cimicidae
#6
Desen Wang, Changlu Wang, Narinderpal Singh, Amanda L Eiden, Richard Cooper, Chen Zha
The common bed bug (Cimex lectularius L.) (Hemiptera: Cimicidae) is an obligate blood-sucking insect that has been resurging in many countries. Researching this pest's behavior will help design more effective control methods. In this study, we evaluated the effect of feeding history and time elapsed from field collection on bed bug movement behavior and response to chemical lure or carbon dioxide stimulation in the laboratory. After CO2 was released, bed bugs unfed for 3 d began to return to harborages; in contrast, the ones unfed for 2 and 4 wk spent significantly more time outside their harborages during the first 1 h after than the 1 h before CO2 release...
May 25, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28489937/impact-of-sublethal-exposure-to-a-pyrethroid-neonicotinoid-insecticide-on-mating-fecundity-and-development-in-the-bed-bug-cimex-lectularius-l-hemiptera-cimicidae
#7
Sydney E Crawley, Jennifer R Gordon, Katelyn A Kowles, Michael F Potter, Kenneth F Haynes
Sublethal exposure to an insecticide may alter insect feeding, mating, oviposition, fecundity, development, and many other life history parameters. Such effects may have population-level consequences that are not apparent in traditional dose-mortality evaluations. Earlier, we found that a routinely used combination insecticide that includes a pyrethroid and a neonicotinoid (Temprid® SC) had deleterious effects on multiple bed bug (Cimex lectularius, L.) behaviors. Here, we demonstrate that sublethal exposure impacts physiology and reproduction as well...
2017: PloS One
https://www.readbyqxmd.com/read/28399302/genetic-diversity-and-phylogenetic-relationships-of-cytochrome-c-oxidase-subunit-i-in-cimex-hemipterus-hemiptera-cimicidae-populations-in-malaysia
#8
Siti Nor Ain Seri Masran, Abdul Hafiz Ab Majid
The tropical bed bug is scientifically recognized as a significant public health problem. While there is an increased awareness about their resurgence by medical and life science committees, efficient bed bug management still remains unresolved. The solution may soon arise, as information about bed bugs' infestation dynamics and systematics are becoming more distinguishable. Recent developments in studies about bed bugs are based on molecular intervention by determining their genetic variation and phylogeography...
February 8, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28399298/an-early-holocene-record-of-cimex-hemiptera-cimicidae-from-western-north-america
#9
Martin E Adams, Dennis L Jenkins
The subfossil remains of 14 cimicids (Hemiptera: Cimicidae) were recovered during archaeological investigations of the Paisley Five Mile Point Cave site (35LK3400), an exceptionally well-dated (n = 229 radiocarbon dates) late Pleistocene-early Holocene rock shelter site in south-central Oregon. Nine of the specimens have been assigned to three modern species of Nearctic Cimicidae-Cimex antennatus Usinger & Ueshima, Cimex latipennis Usinger & Ueshima, and Cimex pilosellus (Horváth)-whereas the remaining five individuals were too fragmentary to positively identify...
April 4, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28399295/relatively-small-quantities-of-co2-ammonium-bicarbonate-and-a-blend-of-e-2-hexenal-plus-e-2-octenal-attract-bed-bugs-hemiptera-cimicidae
#10
John F Anderson, Francis J Ferrandino, Michael P Vasil, Robert H Bedoukian, Marie Maher, Karen Mckenzie
Bed bugs, Cimex lectularius L., feed on humans, have increased exponentially in the past two decades in many major cities throughout the world, have caused intense infestations, and have become a significant health concern. Improved traps are needed to detect early infestations, to assess control programs, and for control of bed bugs. Carbon dioxide released alone or simultaneously with other attractants into three types of traps at the relatively low rate of 1 ml/min caught significantly more bed bugs than untreated controls in a 183- by 183-cm arena...
March 1, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28399289/no-detectable-insecticide-resistance-in-swallow-bugs-hemiptera-cimicidae-following-long-term-exposure-to-naled-dibrom-8
#11
Jelena Runjaic, Ian J Bellovich, Catherine E Page, Charles R Brown, Warren Booth
The swallow bug, Oeciacus vicarius Horvath, is a hematophagous ectoparasite of the cliff swallow, Petrochelidon pyrrhonota Vieillot, and is closely related to bed bugs (Cimex spp.). Evolution of insecticide resistance has been documented for bed bugs but not studied in Oeciacus. For periods of 17 and 32 yr, two cliff swallow colonies in western Nebraska were treated during the summer breeding season using the organophosphate insecticide Dibrom. Despite continual treatments, O. vicarius has been observed frequently within these colonies...
February 19, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28398497/detection-of-reduced-susceptibility-to-chlorfenapyr-and-bifenthrin-containing-products-in-field-populations-of-the-bed-bug-hemiptera-cimicidae
#12
Aaron R Ashbrook, Michael E Scharf, Gary W Bennett, Ameya D Gondhalekar
Insecticide resistance is a major impediment for effective control of Cimex lectularius L. Previous resistance detection studies with bed bugs have focused on certain pyrethroid, neonicotinoid, organochlorine, organophosphate, and carbamate insecticides. Within the pyrethroid class, resistance studies have mostly been limited to deltamethrin, lambda-cyhalothrin, and alpha- and beta-cyfluthrin. The goal of this study was to develop diagnostic concentration bioassays for assessing bed bug susceptibility levels to chlorfenapyr- and bifenthrin-containing products...
June 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28383033/molecular-basis-of-olfactory-chemoreception-in-the-common-bed-bug-cimex-lectularius
#13
Feng Liu, Zhou Chen, Nannan Liu
As one of the most notorious ectoparasites, bed bugs rely heavily on human or animal blood sources for survival, mating and reproduction. Chemoreception, mediated by the odorant receptors on the membrane of olfactory sensory neurons, plays a vital role in their host seeking and risk aversion processes. We investigated the responses of odorant receptors to a large spectrum of semiochemicals, including human odorants and plant-released volatiles and found that strong responses were sparse; aldehydes/ketones were the most efficient stimuli, while carboxylic acids and aliphatics/aromatics were comparatively less effective in eliciting responses from bed bug odorant receptors...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28369372/bed-bug-hemiptera-cimicidae-detection-in-low-income-high-rise-apartments-using-four-or-fewer-passive-monitors
#14
K M Vail, J G Chandler
Bed bug, Cimex lectularius L., management in low-income, high-rise housing for the elderly and disabled can be difficult. Early detection is key to slowing their spread, and reducing management cost and time needed for control. To determine the minimum number of passive monitors needed to detect low-level bed bug infestations in this environment, we evaluated three monitors placed one, two, or four per apartment in a 3 by 3 experimental design. One sticky monitor, The Bedbug Detection System, and the two pitfall monitors, ClimbUp Insect Interceptors BG and BlackOut BedBug Detectors, were evaluated...
June 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28362364/a-method-for-evaluating-insecticide-efficacy-against-bed-bug-cimex-lectularius-eggs-and-first-instars
#15
Brittany E Campbell, Dini M Miller
Standard toxicity evaluations of insecticides against insect pests are primarily conducted on adult insects. Evaluations are based on a dose-response or concentration-response curve, where mortality increases as the dose or concentration of an insecticide is increased. Standard lethal concentration (LC50) and lethal dose (LD50) tests that result in 50% mortality of a test population can be challenging for evaluating toxicity of insecticides against non-adult insect life stages, such as eggs and early instar or nymphal stages...
March 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28334370/differences-in-climbing-ability-of-cimex-lectularius-and-cimex-hemipterus-hemiptera-cimicidae
#16
Dae-Yun Kim, Johan Billen, Stephen L Doggett, Chow-Yang Lee
The climbing abilities of two bed bug species, Cimex lectularius L. and Cimex hemipterus (F.), were determined by evaluating their escape rates from smooth surface pitfall traps using four commercial bed bug monitors (Verifi Bed Bug Detector, ClimbUp Insect Interceptor, BlackOut Bed Bug Detector, and SenSci Volcano Bed Bug Detector). All detectors were used in the absence of lures or attractants. Unlike C. lectularius, adult C. hemipterus were able to escape from all traps. On the other hand, no or a low number nymphs of both species escaped, depending on the evaluated traps...
June 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334348/evaluation-of-the-potential-for-secondary-kill-for-ingested-insecticides-in-the-common-bed-bug-hemiptera-cimicidae
#17
Yvonne K Matos, Angela Sierras, Coby Schal
Baits are a preferred method of urban pest management. Baits enable more targeted insecticide applications with a fraction of the active ingredient used in residual sprays. Bait translocation by foragers, and consequent secondary kill of nonforagers, enhances bait effectiveness in social insects, and in other group-living species like German cockroaches (Blattella germanica L.). We investigated the potential for secondary kill in bed bugs (Cimex lectularius L.), another gregarious species, using a liquid bait...
June 1, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28321982/susceptibility-of-insecticide-resistant-bed-bugs-cimex-lectularius-to-infection-by-fungal-biopesticide
#18
Alexis M Barbarin, Giovani S Bellicanta, Jason A Osborne, Coby Schal, Nina E Jenkins
BACKGROUND: Bed bugs are a public health concern, and their incidence is increasing worldwide. Bed bug infestations are notoriously difficult to eradicate, further exacerbated by widespread resistance to pyrethroid and neonicotinoid insecticides. This study evaluated the efficacy of the newly developed fungal biopesticide Aprehend™, containing Beauveria bassiana, against insecticide-resistant bed bugs. RESULTS: Overall mortality for the Harold Harlan (insecticide-susceptible) strain was high (98-100%) following exposure to Aprehend™ or Suspend SC (deltamethrin)...
March 20, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28217039/desiccant-dust-and-the-use-of-co2-gas-as-a-mobility-stimulant-for-bed-bugs-a-potential-control-solution
#19
Anders Aak, Espen Roligheten, Bjørn Arne Rukke, Tone Birkemoe
The common bed bug (Cimex lectularius, Hemiptera; Cimicidae) infests homes and service industries, and the number of infestations has greatly increased over the past 20 years. At present, no cost-effective control methods are available, and eradication programs are expensive and laborious. We investigated the control potential of desiccant dust in combination with CO2 as a bed bug activity stimulant. An initial experiment with two desiccant dusts was followed by arena studies with varying doses, available hiding places and the presence or absence of host signals...
2017: Journal of Pest Science
https://www.readbyqxmd.com/read/28179037/analysis-of-bed-bug-cimex-lectularius-introductions-into-an-academic-medical-center
#20
Johnathan Michael Sheele, Erika Barrett, Obada Farhan, Nathan Morris
No abstract text is available yet for this article.
May 2017: Infection Control and Hospital Epidemiology
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