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Experimental & Applied Acarology

Katarzyna Kubiak, Janina Dziekońska-Rynko, Hanna Szymańska, Dariusz Kubiak, Małgorzata Dmitryjuk, Ewa Dzika
Green areas located within large cities, as natural ecotypes, are a convenient habitat for ticks and their use as recreational areas is associated with the potential risk of acquiring tick-borne diseases. This study estimated the I. ricinus tick density, prevalence of infection with Borrelia species and the diversity of these bacteria in a green urban area (Olsztyn) of north-eastern Poland, an endemic region of tick-borne diseases. The ticks were collected during spring and autumn of 2015, at sites differing in the degree of human pressure and habitat...
May 17, 2019: Experimental & Applied Acarology
J E Song, H S Lee
Due to an unfortunate turn of events, an incorrect funding note was provided in the original publication as it should have read.
May 16, 2019: Experimental & Applied Acarology
José M Venzal, Gabriel N Castillo, Cynthia J Gonzalez-Rivas, Atilio J Mangold, Santiago Nava
A new tick species of the genus Ornithodoros (Acari: Argasidae) was described from larvae collected on the toad Rhinella arenarum in a locality from Argentina belonging to the Monte Biogeographic Province. Ornithodoros montensis n. sp. was described based on morphological traits and sequences of the mitochondrial 16S rRNA gene. The diagnostic characters for this species are a combination of idiosoma oval, dorsal plate pyriform with posterior margin slightly concave, dorsal surface with 17 pairs of setae (7 anterolateral, 4 to 5 central and 5 to 6 posterolateral), ventral surface with 6 pairs of setae and 1 pair on anal valves, three pairs of sternal setae, postcoxal setae absent, and hypostome pointed apically with dental formula 3/3 in the anterior half and 2/2 posteriorly almost to base...
May 15, 2019: Experimental & Applied Acarology
Mackenzie L Kwak, Maosheng Foo, Kate Pocklington, Chia-Da Hsu, Webster Cheong, Choon Beng How, Mishak Shunari, Muhammad Ghufran Tahir
Interactions between ticks and crocodilians (crocodiles, alligators, caiman, and gharials) are poorly studied but may have significant bearing on the ecology and health of these reptiles. The first record of tick infestation of the saltwater crocodile (Crocodylus porosus) is reported along with the first case of infestation by Amblyomma cordiferum on Cuvier's dwarf caiman (Paleosuchus palpebrosus). A review is also provided of tick-crocodilian interactions with a concise host-parasite index.
May 15, 2019: Experimental & Applied Acarology
Daniel E Martin, Mohamed A Latheef
The Banks grass mite, Oligonychus pratensis (Banks), and two-spotted spider mite, Tetranychus urticae Koch, are important chelicerae herbivores on irrigated corn in Kansas, USA. They cause loss of foliage, stalk breakage, kernel shrinkage and yield loss. Aerial application methods were evaluated to control spider mites in a commercial corn field in August, 2017, near Hoxie, Kansas. Dimethoate (0.56 kg active ingredient/ha) and Lorsban Advanced (1.05 kg active ingredient/ha) mixed with a nonionic surfactant, Traverse (0...
May 15, 2019: Experimental & Applied Acarology
Marco Drehmann, Lidia Chitimia-Dobler, Alexander Lindau, Alisa Frank, Sabrina Mai, Katrin Fachet, Daniela Hauck, Steffen Knoll, Christina Strube, Renke Lühken, Dominik Fischer, Luisa Ziegler, Ute Mackenstedt
The ornithophilic tick species Ixodes frontalis (Panzer) is spatially distributed in Europe, Asia and northern Africa. It can serve as a carrier of different bacteria and viruses, but little is known of its actual vector competence. In addition, adult females of this species are associated with the avian "tick-related syndrome" (TRS). Like most ornithophilic tick species, I. frontalis is usually collected from bird nests or directly from their hosts. Reports of I. frontalis being collected with the flagging method are scarce...
May 15, 2019: Experimental & Applied Acarology
Peng-Yu Jin, Lu Tian, Lei Chen, Xiao-Yue Hong
Tetranychus pueraricola is a newly reported spider mite that occurs frequently in mainland China. It is possible that this species was introduced from elsewhere and became a serious pest recently. However, the correct identification of red-pigmented spider mites has repeatedly proven problematic. There is also the possibility that T. pueraricola in China was long misidentified as its sibling species, Tetranychus urticae (red form). To test which of these two scenarios is the more likely, individuals from 14 populations of T...
May 15, 2019: Experimental & Applied Acarology
Gabriel Reboux, Benoit Valot, Steffi Rocchi, Emeline Scherer, Sandrine Roussel, Laurence Millon
Dwellings are increasingly well insulated to save energy and this leads to higher humidity and temperature, which improves conditions for mites. Dermatophagoides antigens are the main allergens involved and tested in atopic asthma. We developed three new species-specific quantitative PCR (qPCR) methods for house dust mites (Dermatophagoides pteronyssinus and D. farinae) and storages mites (Acarus siro, Glycyphagus domesticus, Lepidoglyphus destructor). We sampled dust with electrostatic dust collectors, in the bedrooms, under beds and in the kitchens of patients with allergies (n = 24) and healthy controls (n = 18)...
May 15, 2019: Experimental & Applied Acarology
Sergey M Tsurikov, Sergey G Ermilov, Alexei V Tiunov
The trophic positions of the most abundant soil- and litter-dwelling oribatid mite species in a tropical monsoon forest in Dong Nai (Cat Tien) National Park, southern Vietnam, were estimated using stable isotope analysis. Previously published data and Layman's metrics were used to compare the structure of the 'isotopic trophic niches' and the range of resources used by Oribatida in the tropical forest to those observed in temperate forests. The range of trophic levels occupied by oribatid mites, as reflected in their nitrogen isotopic compositions, did not differ between tropical and temperate forests...
May 14, 2019: Experimental & Applied Acarology
Fawzeia Elmhalli, Samira S Garboui, Anna-Karin Borg-Karlson, Raimondas Mozūraitis, Sandra L Baldauf, Giulio Grandi
Essential oils extracted from the leaves of Libyan Rosemary (Rosmarinus officinalis L.), and Miswak (Salvadora persica L.) were evaluated for their acaricidal and repellent effects on Ixodes ricinus L. nymphs (Acari: Ixodidae) using a bioassay based on an 'open filter paper method'. Rosmarinus officinalis leaf essential oil diluted to 0.5 and 1 µl/cm2 in acetone exhibited, respectively, 20 and 100% tick mortality after about 5 h of exposure. A total of 50 and 95% of I. ricinus nymphs were killed by direct contact with the oil when exposed to lethal concentrations (LC) of 0...
May 14, 2019: Experimental & Applied Acarology
Ivana Pozojević, Lara Juršić, Natalija Vučković, Valentina Dorić, Sanja Gottstein, Ivančica Ternjej, Zlatko Mihaljević
Predation is a biotic interaction that links water mites to different taxonomic groups of benthic invertebrates. Diptera larvae (Chironomidae) and microcrustaceans (Cladocera, Copepoda, Ostracoda) are known to be the most commonly preferred prey by water mites. Although these predatory interactions are known from observations and ex situ investigations, the distribution patterns and co-occurrence of water mites and their prey in littoral lentic habitats have been poorly studied. Our goal was to determine whether predation might serve as a significant factor in water mite assemblage composition and distribution...
May 14, 2019: Experimental & Applied Acarology
Flávio Augusto Sanches Politi, Rafaela Regina Fantatto, Alexander Alves da Silva, Isabela Jacob Moro, Bruno Rodrigues Sampieri, Maria Izabel Camargo-Mathias, Amanda Figueiredo, Ana Carolina de Souza Chagas, Maysa Furlan
The cattle tick Rhipicephalus microplus is a great sanitary problem and causes huge losses to livestock, being a vector of important diseases. The aim of this work was to verify the action of plant-derived material obtained from Tagetes patula on the life cycle of R. microplus, as well as to analyze the action of these extracts on ovary cells of engorged females. In the Adult Immersion Test, the crude ethanolic extract (TpEtOH ) showed an efficacy of 99.2% (LC50  = 18.60 mg mL-1 ). From the repellency test, it was found that both the TpEtOH and essential oil were 100% efficient on the larval stage...
May 10, 2019: Experimental & Applied Acarology
Guilherme Liberato da Silva, Isadora Zanatta Esswein, Daiane Heidrich, Fabíola Dresch, Mônica Jachetti Maciel, Danielle Machado Pagani, Patrícia Valente, Maria Lúcia Scroferneker, Liana Johann, Noeli Juarez Ferla, Onilda Santos da Silva
The stored food mite Tyrophagus putrescentiae (Schrank) (Acari: Acaridae) has been associated with the presence of several fungal species. The aims of this work were to evaluate T. putrescentiae population growth associated to environmental and medically important fungal species to determine on which fungal species populations of T. putrescentiae performs best, and to evaluate their ability to disperse each fungal species. First, 24 fungal species were inoculated separately in Petri dishes containing Sabouraud agar medium...
May 10, 2019: Experimental & Applied Acarology
Seung Ju Lee, Hyun Kyung Kim, Gil-Hah Kim
The acaricidal activity of 30 essential oils against the poultry red mite, Dermanyssus gallinae, female adults and behavioral responses of the mites to these essential oils were investigated. Cinnamon bark oil and clove bud oil showed 100% acaricidal activity after 24 h in the 1.3 μg/m2 treatment. In addition, four components in cinnamon bark oil and three components in clove bud oil were identified using gas chromatography-mass spectrometry. Cinnamon bark oil showed the highest LD50 value among all of the components, and eugenol showed 0...
May 8, 2019: Experimental & Applied Acarology
Chuan-Bei Tian, Ya-Ying Li, Xian Wang, Wen-Hui Fan, Ge Wang, Jing-Yu Liang, Zi-Ying Wang, Huai Liu
Biological control of spider mites in hot and dry weather is a serious technical issue. A high-temperature adapted strain (HTAS) of the predatory mite Neoseiulus barkeri Hughes was selected from its conventional strain (CS), via long-term heat acclimation and frequent heat hardenings in our previous studies. However, the environment of high temperature is usually associated with enhanced ultraviolet (UV) radiation. In the present study, the physiological effects of UV-B radiation on survival rate and egg damage of N...
May 6, 2019: Experimental & Applied Acarology
P J Savi, G J de Moraes, C C Melville, D J Andrade
The tomato red spider mite, Tetranychus evansi Baker & Pritchard, is one of the main pests of the tomato crop in several countries, mainly in Africa, where it can reduce tomato yield by up to 90%. The biotic potential of this mite is high and its control is difficult because of low efficiency of chemicals used and the rapid development of resistance to acaricides. We used the two-sex life table to evaluate the effect of two wild tomato genotypes (PI134417 and PI134418) and five tomato varieties widely grown in Benin (Kekefo, Akikon, TLCV15, Tounvi, and TOML4) on demographic characteristics of T...
May 4, 2019: Experimental & Applied Acarology
Vladimir Pešić, Ana Savić, Aleksandra Jabłońska, Grzegorz Michoński, Michał Grabowski, Aleksandra Bańkowska, Andrzej Zawal
Springs are often recognized as biodiversity hotspots on the regional scale but at the same time they are among the most endangered freshwater habitats. Water mites are among the aquatic animal groups with highest share of crenobiotic (= spring-dwelling) species and, therefore, are possibly the best indicators of the ecological status of spring habitats. We studied water mites and environmental factors correlated with their distribution pattern along a eucrenon-hypocrenon gradient. The sampling was conducted in 14 karstic springs located in the Mediterranean part of Montenegro...
April 22, 2019: Experimental & Applied Acarology
S Gatault, R Foley, L Shiels, F C Powell
Demodex mites have been suggested to have a role in various cutaneous and ocular disorders pathogenesis, such as rosacea or blepharitis. Evaluation of potential treatments with anti-Demodex effects is difficult because the viability of living mites needs to be evaluated during their exposure to the agent being tested. Mite viability is currently based solely on their observed movement. However, this method of assessing viability has significant limitations as mites may be resting, immobile or paralysed at any given observation point giving the observer a false impression of the organism's death...
April 19, 2019: Experimental & Applied Acarology
Jin-Cui Chen, Ya-Jun Gong, Pan Shi, Ze-Hua Wang, Li-Jun Cao, Peng Wang, Shu-Jun Wei
The acaricide bifenazate acts as complex III inhibitor whereas cyenopyrafen and SYP-9625 act as complex II inhibitors. All these acaricides are commonly used to control two-spotted spider mite (TSSM), Tetranychus urticae Koch. We examined field-evolved and laboratory-selected resistance of TSSM to these three acaricides and determined cross-resistance among them. Six field populations of TSSM showed low levels of resistance to bifenazate with resistance ratios ranging from 2.20 to 10.65 compared to a susceptible strain...
April 17, 2019: Experimental & Applied Acarology
Adriana Santodomingo, Keyla Sierra-Orozco, Andrea Cotes-Perdomo, Lyda R Castro
Horses are among the domestic animals that closely interact with humans and are highly parasitized by ticks, which are the primary vectors of zoonoses. As horses in Tayrona National Natural Park (PNNT) are used as a means of transporting goods, luggage and people, they are in constant contact with wild animals, workers and tourists from different countries. These factors increase the transmission risk of hemoparasites. The purpose of this study was to determine the presence of Rickettsia sp., Anaplasma sp., and Theileria sp...
March 28, 2019: Experimental & Applied Acarology
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