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Experimental & Applied Acarology

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https://www.readbyqxmd.com/read/30413990/the-life-cycle-and-development-characteristics-of-dermacentor-everestianus-acari-ixodidae-under-field-conditions-in-qinghai-tibet-plateau
#1
Tuo Li, Ming Liu, Tian-Tian Zhang, Yuan Li, Wen-Ying Wang, Meng-Meng Li, Zhi-Jun Yu, Jing-Ze Liu
The tick Dermacentor everestianus mainly distributed in Tibet, China and Nepal, and can transmit some pathogens causing great damages in Qinghai-Tibet Plateau. This study investigated the life cycle and development characteristics of D. everestianus under field conditions. The average duration of the whole life cycle of D. everestianus was 124.4 days, with the host available in the field plot. Under natural conditions, the mean feeding, preoviposition and oviposition period of female ticks were 6.1, 17.9 and 21...
November 9, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30357575/heat-shock-proteins-in-varroa-destructor-exposed-to-heat-stress-and-in-hive-acaricides
#2
P M Garrido, M P Porrini, N Damiani, S Ruffinengo, G M A Martínez Noël, G Salerno, M J Eguaras
Varroa destructor is one of the major pests that affect honeybees around the world. Chemical treatments are common to control varroosis, but mites possess biochemical adaptive mechanisms to resist these treatments, enabling them to survive. So far, no information is available regarding whether these pesticides can induce the expression of heat shock protein (Hsp) as a common protective mechanism against tissue damage. The aims of this study were to determine differences in heat shock tolerance between mites collected from brood combs and phoretic ones, and to examine patterns of protein expression of Hsp70 that occur in various populations of V...
October 24, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30338412/correction-to-the-first-authenticated-record-of-the-pangolin-tick-amblyomma-javanense-acari-ixodidae-in-singapore-with-notes-on-its-biology-and-conservation
#3
Mackenzie L Kwak, Chia-Da Hsu, Guillaume Douay, Ali Anwar Ahmad
Due to an unfortunate turn of events, the surname of the third author appeared incorrectly in the original publication as it should have read Douay. The original article has been corrected, and the proper representation of the authors' names and their affiliation is also listed here.
October 18, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30298232/the-first-authenticated-record-of-the-pangolin-tick-amblyomma-javanense-acari-ixodidae-in-singapore-with-notes-on-its-biology-and-conservation
#4
Mackenzie L Kwak, Chia-Da Hsu, Guillaume Duoay, Ali Anwar Ahmad
The first authenticated record of the co-endangered pangolin tick (Amblyomma javanense) is reported from the Republic of Singapore, based on specimens of males and females collected from the Sunda pangolin (Manis javanica). The biology of the species is reviewed and steps for its conservation are outlined to ensure its continued survival across its range.
October 8, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30206798/evidence-for-co-invasion-events-different-chigger-species-actinotrichida-trombidioidea-trombiculidae-share-a-host
#5
Hanna Moniuszko, Magdalena Felska, Joanna Mąkol
Cases of co-invasion of various chigger species parasitizing murids and cricetids in various habitats were analysed using morphological and molecular approaches. Here we provide evidence for 25 new cases of co-parasitism of chigger mites on rodent hosts (Myodes glareolus, Apodemus flavicollis, Apodemus agrarius) accounting for 8.6% of all host-parasite associations observed in this study. The results confirm higher incidence of co-parasitism in vertebrate-associated Parasitengona mites compared to arthropod-associated ones...
September 12, 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30343395/mite-color-alteration-and-acaricidal-activity-of-3-7-dimethyl-2-6-octadienal-and-its-structural-analogues-against-the-stored-food-pest-mite-tyrophagus-putrescentiae
#6
J E Song, H S Lee
Acaricidal activities of the active component isolated from Melissa officinalis oil and its structural analogues against Tyrophagus putrescentiae were evaluated using fumigant and contact bioassays. The structure of 3,7-dimethyl-2,6-octadienal purified from M. officinalis oil was elucidated with EI-MS, 1 H- and 13 C-NMR, 1 H-1 H COSY, and DEPT-NMR. Based on the LD50 values of 3,7-dimethyl-2,6-octadienal analogues in fumigant and contact bioassays, respectively, 2,4-octadienal showed the highest activity (LD50  = 2...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30341477/overwintering-of-the-argentine-strain-of-neoseiulus-californicus-acari-phytoseiidae
#7
María Fernanda Gugole Ottaviano, Mariángeles Alonso, Claudia Cédola, Mariana Pascua, Martha Roggiero, Nancy Greco
Overwintering and diapause are variable among mite species and strains. The aims of this study were to determine whether certain crops constitute overwintering sites for the Argentine strain of the predator Neoseiulus californicus and whether females underwent reproductive diapause in winter. Neoseiulus californicus was recorded monthly on the vegetables tomato, sweet pepper, eggplant, and artichoke, and on strawberry, among other crops in Buenos Aires province, Argentina. This mite was found at a lower percentage of crops in the winter than in the other seasons...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30341476/plant-mediated-competition-facilitates-a-phoretic-association-between-a-gall-mite-and-a-psyllid-vector
#8
Jianling Li, Sai Liu, Kun Guo, Fan Zhang, Haili Qiao, Jianmin Chen, Mengke Yang, Xiu Zhu, Rong Xu, Changqing Xu, Jun Chen
Phoretic associations between mites and insects commonly occur in patchy and ephemeral habitats. As plants provide stable habitats for herbivores, herbivorous mites are rarely dependent on other animals for phoretic dispersal. However, a phoretic gall mite, Aceria pallida, which is found on plants, seasonally attaches to a herbivorous insect, Bactericera gobica, for overwintering survival. After detachment, the gall mite shares a habitat with its vector and is likely to compete with this vector for plant resources...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30341475/spraying-pyrethroid-and-neonicotinoid-insecticides-can-induce-outbreaks-of-panonychus-citri-trombidiformes-tetranychidae-in-citrus-groves
#9
Odimar Zanuzo Zanardi, Gabriela Pavan Bordini, Aline Aparecida Franco, Matheus Rovere de Morais, Pedro Takao Yamamoto
Panonychus citri (McGregor) (Trombidiformes: Tetranychidae) is one of the main defoliator mites in citrus groves. In Brazil, P. citri was formerly considered a secondary pest, but in recent years, the population levels of this mite have increased in many groves, requiring additional acaricide applications for its control. The population growth of P. citri is associated with the increase in the number of applications of pyrethroid and neonicotinoid insecticides to control insect citrus pests. This study assessed the effects of pyrethroid (deltamethrin, esfenvalerate, λ-cyhalothrin) and neonicotinoid (imidacloprid and thiamethoxam) insecticides on biological, behavioral and demographic parameters of P...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30327984/response-of-soil-mites-acari-mesostigmata-to-long-term-norway-spruce-plantation-along-a-mountain-stream
#10
Jacek Kamczyc, Maciej Skorupski, Marcin K Dyderski, Anna Gazda, Mariusz Hachułka, Paweł Horodecki, Izabela Kałucka, Marek Malicki, Remigiusz Pielech, Michał Smoczyk, Sylwia Wierzcholska, Andrzej M Jagodziński
During the nineteenth and twentieth centuries, coniferous monocultures were introduced, replacing natural broadleaved forests in Central Europe, mainly for economic benefits. In the mountains, Norway spruce [Picea abies (L.) H. Karst] was introduced in large areas previously covered with beech forests and also in natural riverside habitat corridors such as river valleys, despite its negative impact on the soil environment by e.g. organic matter accumulation, decrease of soil pH and changes in C/N ratio. We aimed to check how long-term Norway spruce plantations affect species richness and diversity of soil mites along a mountain river in former mixed and broadleaved forests...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30317459/ticks-acari-ixodidae-in-the-serra-da-canastra-national-park-in-minas-gerais-brazil-species-abundance-ecological-and-seasonal-aspects-with-notes-on-rickettsial-infection
#11
Matias Pablo Juan Szabó, Maria Marlene Martins, Márcio Botelho de Castro, Richard Campos Pacheco, Graziela Virginia Tolesano-Pascoli, Khelma Torga Dos Santos, Thiago Fernandes Martins, Luis Gustavo Antunes de Souza, Joares Adenilson May-Junior, Jonny Yokosawa, Marcelo Bahia Labruna
The Cerrado Biome is the second largest in Brazil covering roughly 2 million km2 , with varying features throughout its area. The Biome is endangered but it is also source of animal species for rural, green urban and degraded rainforest areas. Ticks are among Cerrado species that establish at anthropogenic sites and although information about them is steadily increasing, several features are unknown. We herein report tick species, abundance and some ecological relationships within natural areas of the Cerrado at higher altitudes (800-1500 m) within and around Serra da Canastra National Park, in Minas Gerais State Brazil...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30317458/acaricidal-effect-of-schinus-molle-anacardiaceae-essential-oil-on-unengorged-larvae-and-engorged-adult-females-of-rhipicephalus-sanguineus-acari-ixodidae
#12
Catalina Rey-Valeirón, Keila Pérez, Lucía Guzmán, Javier López-Vargas, Eduardo Valarezo
The current concern about resistance to acaricides and the impact of toxic waste on the environment has led to the search of vegetal alternatives in the control of the brown tick of the dog Rhipicephalus sanguineus. Schinus molle L. (Anacardiaceae) derivatives have been associated with insecticidal, antimicrobial and antiprotozoal activities and essential oil showed to be lethal to R. microplus larvae. This study aimed at evaluating the acaricidal effect of essential oil of S. molle (EOSm ) on engorged adult females and larval stages of R...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30306503/a-comparison-of-the-cuticular-properties-of-the-female-ticks-ixodes-pacificus-and-amblyomma-hebraeum-acari-ixodidae-throughout-the-feeding-period
#13
W Reuben Kaufman, Peter C Flynn
The mechanical properties of the cuticle of Ixodes pacificus (Ip) are compared to those of Amblyomma hebraeum (Ah) from our earlier work. The 10-fold size difference between the species is expected to lead to significant differences in mechanical properties, because cuticular stretch depends on high internal hydrostatic pressure during the rapid phase of engorgement. We demonstrate here: (1) The cuticle of partially fed Ip is less stiff and viscous than that of Ah. (2) A stretch-recoil cycle in both ticks consists of recoverable deformation (ESv) and permanent deformation (ESp); ESp is higher in Ip, and increases sharply during the slow phase of engorgement, but not in Ah...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30306502/molecular-and-morphological-characterization-of-the-predatory-mite-amblyseius-largoensis-acari-phytoseiidae-surprising-similarity-between-an-asian-and-american-populations
#14
Debora B Lima, Daniela Rezende-Puker, Renata S Mendonça, Marie-Stephane Tixier, Manoel G C Gondim, José W S Melo, Daniel C Oliveira, Denise Navia
The accurate characterization of biological control agents is a key step in control programs. Recently, Amblyseius largoensis from Thailand were introduced in Brazil to evaluate their efficiency for the control of the red palm mite, Raoiella indica. The aim of this study was to confirm their identification and to characterize the population from Thailand, comparing it to populations of the Americas and Indian Ocean islands. In addition, a population of A. largoensis from New Caledonia, Oceania, of which DNA sequences were available, was included in phylogenetic analyses...
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30302626/ixodes-heathi-n-sp-acari-ixodidae-a-co-endangered-tick-from-the-critically-endangered-mountain-pygmy-possum-burramys-parvus-with-notes-on-its-biology-and-conservation
#15
M L Kwak, C Madden, L Wicker
A new species of co-endangered tick, Ixodes heathi n. sp., is described from specimens of the nymph collected on the critically endangered mountain pygmy possum (Burramys parvus Broom) from the alpine region of Victoria, Australia. Its biology is discussed along with strategies for its conservation.
November 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30302627/differential-expression-analysis-for-subolesin-in-rhipicephalus-microplus-infected-with-anaplasma-marginale
#16
Verónica Carvajal-de la Fuente, Octavio Merino-Charrez, Erick Tovar-Carman, Sergio D Rodríguez-Camarillo, Rodolfo E Lagunes-Quintanilla, Fernando A Muñoz-Tenería, Marinela Contreras, José de la Fuente
Rhipicephalus microplus (formerly Boophilus microplus) ticks are potential vectors of several pathogens of livestock especially in tropical and subtropical regions where may have substantial effects on economic development. Among tick-borne pathogens, Anaplasma marginale is considered one of the most important in domestic and wild ruminants worldwide. Different molecular mechanisms have been employed by both ticks and these intracellular pathogens, in order to be able to adapt and survive. Subolesin, originally called 4D8, is an evolutionarily well-preserved protein among ixodid tick species...
October 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30302625/acaricidal-properties-of-ylang-ylang-oil-and-star-anise-oil-against-nymphs-of-ixodes-ricinus-acari-ixodidae
#17
Fawzeia Elmhalli, Katinka Pålsson, Jan Örberg, Giulio Grandi
Ylang-ylang oil (YYO) from Cananga odorata (Lam.) Hook.f. & Thomson and star anise oil (SAO) from Illicium verum Hook.f. were tested at four concentrations 0.05, 0.1, 0.2, 0.4 µl/cm2 . Mortality rates were obtained by counting dead nymphs at 30-min intervals during the first 5 h after the start of exposure and then at 24, 48 and 72 h. Mortality increased with increasing oil concentration and time of exposure. The two highest concentrations of YYO (0.2, 0.4 µl/cm2 ) gave maximum lethal concentrations (LC) of 50 and 95% mortality after 4...
October 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30298231/in-search-of-the-vector-s-of-babesia-rossi-in-nigeria-molecular-detection-of-b-rossi-dna-in-rhipicephalus-sanguineus-sensu-lato-acari-ixodidae-ticks-collected-from-dogs-circumstantial-evidence-worth-exploring
#18
Joshua Kamani, Ping-Jun Chung, Chung-Chan Lee, Yang-Tsung Chung
The brown dog tick Rhipicephalus sanguineus (sensu lato) (Acari: Ixodidae) has a cosmopolitan distribution, is a proven vector of a host of pathogens with emerging evidence incriminating it in the transmission of some others. Specifically it is reputed as the main vector of Babesia vogeli whereas the southern African yellow dog tick Haemaphysalis elliptica, long considered to be H. leachi, is apparently the only proven vector of B. rossi, since the resurrection of the separate species H. elliptica as a member of the leachi-group by Apanaskevich et al...
October 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30298230/a-morphological-and-phylogenetic-analysis-of-ornithodoros-marinkellei-acari-argasidae-with-additional-notes-on-habitat-and-host-usage
#19
José M Venzal, Santiago Nava, Ligia V Hernández, Jorge Miranda, Arlei Marcili, Marcelo B Labruna
Ornithodoros marinkellei was described from larvae collected on Pteronotus spp. bats in Colombia and Panama. More recently, this tick was reported in the Brazilian Amazon. Because some morphometric differences were observed between O. marinkellei larvae from Colombia and Brazil, it was proposed that further investigations were needed to assess whether the differences could be attributed to intra- or inter-specific polymorphism. Herein, we collected O. marinkellei specimens in the type locality of Colombia, in Brazil, and in a new locality in Nicaragua, expanding the distribution of the species to Nicaragua...
October 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/30298229/characterisation-of-cattle-anal-odour-constituents-associated-with-the-repellency-of-rhipicephalus-appendiculatus
#20
Margaret W Kariuki, Ahmed Hassanali, Margaret M Ng'ang'a
Adults of the Brown Ear Tick (Rhipicephalus appendiculatus) have a predilection for feeding inside and around the ears of cattle and other hosts. A previous study has shown that the tick locates the host ears by 'push-pull' deployment of a repellent blend emitted at the anal region and an attractant blend emitted at the ears. Interestingly, the two odours play reverse roles with Rhipicephalus evertsi, which prefer to feed around the anal region. The present study was undertaken to characterize the major constituents of the cattle anal odour and to evaluate their repellence to R...
October 2018: Experimental & Applied Acarology
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