U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject "Rhipicephalus microplus" Remove constraint Subject: "Rhipicephalus microplus"
Start Over

Search

1,185  Search Results

« Previous | 1 - 20 of 1,185 |
Number of results to display per page

Search Results

1. Molecular targets for the development of new acaricides against Rhipicephalus microplus: a review

Author:
Amanda Ponce Morais Cerqueira; Matheus da Cunha Santos; Manoelito Coelho dos Santos Júnior; Mariana Borges Botura
Source:
Parasitology 2022 v.149 no.8 pp. 1019-1026
ISSN:
1469-8161
Subject:
Rhipicephalus microplus,   etc   ; acaricides; biotransformation; cattle; metabolism; parasitology; synaptic transmission; ticks;     Show all 8 Subjects
Abstract:
... The cattle tick Rhipicephalus microplus is an ectoparasite with high economic importance to bovine culture, mainly in tropical and subtropical regions. The resistance of the tick from the commercial acaricides has hindered its control, thus motivating the search for new strategies. The purpose of this study was to perform a critical review about the main molecular targets of R. microplus that are ...
DOI:
10.1017/S0031182022000506

2. Resistance of the cattle tick Rhipicephalus (Boophilus) microplus to fluazuron in Argentina

Author:
Jorgelina Torrents; Macarena Sarli; Nestor F. Sarmiento; Maria V. Rossner; Nicolas Morel; Alberto A. Guglielmone; Santiago Nava
Source:
Experimental & applied acarology 2022 v.86 no.4 pp. 599-606
ISSN:
0168-8162
Subject:
Rhipicephalus microplus,   etc   ; acaricides; acarology; adults; cattle; drugs; field experimentation; ticks; Argentina;     Show all 9 Subjects
Abstract:
... The aim of this work is to report the presence of resistance to fluazuron in a population of Rhipicephalus microplus in Argentina. The evidence was obtained from field and in vitro trials. In the field trial, cattle infested with ticks was treated with two commercial formulations of fluazuron. The in vitro trial (adult immersion test, AIT) was performed by using technical grade fluazuron. In the f ...
DOI:
10.1007/s10493-022-00713-y

3. Design and analysis of a structured questionnaire to assess the probability of elimination of Rhipicephalus microplus from farms in a subtropical area

Author:
Cecilia Miraballes; Franklin Riet-Correa; Gabriela de Freitas Daudt; Luciana Grigolo Pasternak; Ian Dohoo
Source:
Preventive veterinary medicine 2022 v.200 pp. 105576
ISSN:
0167-5877
Subject:
Rhipicephalus microplus,   etc   ; biosecurity; cognition; farms; focus groups; models; probability; questionnaires; ticks; veterinary medicine;     Show all 10 Subjects
Abstract:
... In areas in which R. microplus may be eliminated from farms, it is essential to evaluate the infestation situation and the biosecurity measures available when deciding whether or not to undertake an elimination effort. Multiple questionnaires have been developed to evaluate the cattle tick situation on farms, however, the validity of those questionnaires has not been evaluated. This study aimed to ...
DOI:
10.1016/j.prevetmed.2022.105576

4. Molecular detection of tick-borne pathogens harbored by ticks collected from local breed (Non-descript) of cattle in the chhattishgarh state of India

Author:
Suresh Gulabrao Jadhao; Sushanta Pal; Sonali Deepak Borkar; Gajanan M. Chigure; Subrhodal Nath; Prabhir Kumar Sanyal; Sachin Sudhakar Waghmare; Sachin Kumar
Source:
International journal of tropical insect science 2022 v.42 no.1 pp. 707-713
ISSN:
1742-7592
Subject:
Rhipicephalus microplus,   etc   ; Babesia; Haemaphysalis; Hyalomma anatolicum; Rhipicephalus sanguineus; Rhipicephalus turanicus; cattle; insects; ticks; India;     Show all 10 Subjects
Abstract:
... A morphological study of a total of 3322 ticks revealed the presence of three types of tick genera i.e. Hyalomma, Rhipicephalus, and Haemophyasalis in Chhattisgarh state. Among them, two species of Hyalomma viz., Hyalomma anatolicum (22.51%) and Hyalomma rufipes (2.82%), one species of Haemaphysalis i.e., Haemaphysalis bispinosa (8.12%) and three species of Rhipicephalus viz., Rhipicephalus microp ...
DOI:
10.1007/s42690-021-00593-6

5. Combination of cypermethrin and thymol for control of Rhipicephalus microplus: Efficacy evaluation and description of an action mechanism

Author:
Caio P Tavares; Isabella C Sousa; Matheus N Gomes; Victoria Miró; Guillermo Virkel; Adrian Lifschitz; Livio M Costa-Junior
Source:
Ticks and tick-borne diseases 2022 v.13 no.1 pp. 101874
ISSN:
1877-959X
Subject:
Rhipicephalus microplus,   etc   ; acaricidal properties; adults; cypermethrin; mechanism of action; pyrethrins; reproductive performance; thymol; ticks;     Show all 9 Subjects
Abstract:
... The cattle tick Rhipicephalus microplus is one of the most important ectoparasites in the tropical and subtropical regions of the world. Synthetic pyrethroids are widely used to control this tick, and the selection of resistant populations is a huge problem worldwide. The activity of thymol, a natural monoterpene, free or in combination with other compounds, has been demonstrated against different ...
DOI:
10.1016/j.ttbdis.2021.101874

6. Acaricidal Efficacy of Plants from Ecuador, Ambrosia peruviana (Asteraceae) and Lepechinia mutica (Lamiaceae) against Larvae and Engorged Adult Females of the Common Cattle Tick, Rhipicephalus microplus

Author:
Lucía Guzmán; Jorge Luis Malla; Jorge Ramírez; Gianluca Gilardoni; James Calva; Daniel Hidalgo; Eduardo Valarezo; Catalina Rey-Valeirón
Source:
Veterinary sciences 2022 v.9 no.1 pp. -
ISSN:
2306-7381
Subject:
Rhipicephalus microplus,   etc   ; Ambrosia; Lepechinia; acaricides; adults; eggs; farms; larvae; mortality; oviposition; steam distillation; ticks; Ecuador;     Show all 13 Subjects
Abstract:
... Control measures against common cattle tick Rhipicephalus microplus are of the upmost importance because of considerable, deleterious impact on a farm’s economy. Due to resistance phenomena to synthetic acaricides being a constraint in affected farms, the search for plant derivatives as acaricides has increased dramatically in recent years. In this work, essential oils obtained from two Ecuadorian ...
DOI:
10.3390/vetsci9010023

7. Resistance status of synthetic pyrethroids in Rhipicephalus microplus of Indore district, Madhya Pradesh, India

Author:
U. K. Mandloi; A. K. Jayraw; M. Haque; M. Shakya; G. P. Jatav; N. K. Singh; V. Agrawal; N. Jamra
Source:
International journal of tropical insect science 2022 v.42 no.2 pp. 1197-1203
ISSN:
1742-7592
Subject:
Rhipicephalus microplus,   etc   ; cattle; cypermethrin; deltamethrin; females; insects; larvae; mortality; oviposition; pyrethrins; statistical models; ticks; India;     Show all 13 Subjects
Abstract:
... An investigation was carried out to record the status of resistance against most commonly used synthetic pyrethroids, viz. deltamethrin and cypermethrin in Rhipicephalus microplus of Indore district (Madhya Pradesh). Fully engorged female R. microplus were collected from cattle sheds of four blocks of Indore district, viz. Indore, Hatod, Sanwer and Mhow. Ticks were kept individually for ovipositio ...
DOI:
10.1007/s42690-021-00638-w

8. Comparative analyses of the mitochondrial genomes of the cattle tick Rhipicephalus microplus clades A and B from China

Author:
Yuan-Ping Deng; Jia-Ning Yi; Yi-Tian Fu; Yu Nie; Yu Zhang; Guo-Hua Liu
Source:
Parasitology research 2022 v.121 no.6 pp. 1789-1797
ISSN:
0932-0113
Subject:
Rhipicephalus microplus,   etc   ; amino acids; livestock; mitochondria; mitochondrial genome; nucleotide sequences; parasitology; phylogeny; research; ticks; China;     Show all 11 Subjects
Abstract:
... The cattle tick (Rhipicephalus microplus) is one of the most common ticks parasitizing livestock, causing diseases as the vector of pathogens. In this study, we amplified and sequenced the complete mitochondrial (mt) genome of R. microplus from Hainan province of China and compared it with that of R. microplus from Guizhou province of China. The mt genome sequence of R. microplus from Hainan isola ...
DOI:
10.1007/s00436-022-07501-y

9. Cross-resistance between macrocyclic lactones in populations of Rhipicephalus microplus in Brazil’s semiarid region

Author:
Larissa Claudino Ferreira; Estefany Ferreira Lima; Ana Luzia Peixoto Silva; Clarisse Silva Menezes Oliveira; Geraldo Moreira Silva Filho; Luana Carneiro Sousa; Guilherme Marcondes Klafke; Thais Ferreira Feitosa; Vinícius Longo Ribeiro Vilela
Source:
Experimental & applied acarology 2022 v.87 no.1 pp. 109-117
ISSN:
0168-8162
Subject:
Rhipicephalus microplus,   etc   ; acarology; cattle; cross resistance; eprinomectin; ivermectin; larvae; moxidectin; semiarid zones; tick control; ticks; Brazil;     Show all 12 Subjects
Abstract:
... Rhipicephalus microplus, also known as the cattle tick, is the parasite with the greatest impact on cattle in Brazil. The most common method for controlling this tick is the application of synthetic chemical acaricides, especially ivermectin, which belongs to the group of macrocyclic lactones (MLs). However, because ivermectin is widely used, there is concern about the development of cross-resista ...
DOI:
10.1007/s10493-022-00730-x

10. Genetic diversity and phylogenetic analyses of ixodid ticks infesting cattle in northeast Thailand: the discovery of Rhipicephalus microplus clade C and the rarely detected R. haemaphysaloides

Author:
Chairat Tantrawatpan; Kotchaphon Vaisusuk; Wasupon Chatan; Warayutt Pilap; Warong Suksavate; Ross H. Andrews; Trevor N. Petney; Weerachai Saijuntha
Source:
Experimental & applied acarology 2022 v.86 no.4 pp. 535-548
ISSN:
0168-8162
Subject:
Rhipicephalus microplus,   etc   ; Haemaphysalis; acarology; cattle; genetic variation; haplotypes; mitochondria; phylogeny; ribosomal RNA; ticks; India; Malaysia; Thailand;     Show all 13 Subjects
Abstract:
... In total, 160 ticks infesting cattle in the northeast region of Thailand were collected and used for molecular investigation. Three tick species—Rhipicephalus microplus Canestrini, Rhipicephalus haemaphysaloides Supino and Haemaphysalis bispinosa Neumann—were identified based on morphology and DNA sequences of mitochondrial cytochrome c oxidase subunit 1 (CO1) and 16S ribosomal RNA (16S rRNA). In ...
DOI:
10.1007/s10493-022-00704-z

11. Bovine fecal chemistry changes with progression of Southern Cattle Tick, Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) infestation

Author:
Brian T. Rich; Donald B. Thomas; Michael T. Longnecker; Douglas R. Tolleson; Jay Angerer; Adalberto A. Peréz de León; Pete D. Teel
Source:
Veterinary parasitology 2022 v.303 pp. 109679
ISSN:
0304-4017
Subject:
Rhipicephalus microplus,   etc   ; adults; babesiosis; barns; chemistry; hematophagy; larvae; monitoring; near-infrared spectroscopy; ticks; veterinary parasitology; yearlings;     Show all 12 Subjects
Abstract:
... Surveillance for cattle fever ticks is an essential activity in the U.S. Cattle Fever Tick Eradication Program which prevents reestablishment of these tick vectors of the pathogens causing bovine babesiosis. Other methods of detecting tick infested cattle could augment current physical inspection of restrained cattle by program inspectors. The objective of this study was to determine whether a sin ...
DOI:
10.1016/j.vetpar.2022.109679
CHORUS:
10.1016/j.vetpar.2022.109679

12. Rhipicephalus annulatus, R. australis or R. microplus? Discordance between morphological and genetic data among three cattle tick species

Author:
A. R. Kazim; V. L. Low; D. Tappe; J. Houssaini; C. C. Heo
Source:
Experimental & applied acarology 2022 v.87 no.1 pp. 119-131
ISSN:
0168-8162
Subject:
Rhipicephalus microplus,   etc   ; Rhipicephalus annulatus; acarology; cattle; cytochrome-c oxidase; intraspecific variation; males; mitochondria; sympatry; taxonomy; ticks; Malaysia;     Show all 12 Subjects
Abstract:
... The taxonomy of ticks of the subgenus Boophilus has been extensively debated and is often complicated by the high intraspecific variation of morphological features between species. Notably, the cattle tick Rhipicephalus microplus is a species complex consisting of Rhipicephalus annulatus, Rhipicephalus australis and the three mitochondrial clades (A-C) of R. microplus. To gain insight into the tax ...
DOI:
10.1007/s10493-022-00726-7

13. Synergistic property of piperonyl butoxide, diethyl maleate, triphenyl phosphate and verapamil hydrochloride with deltamethrin and ivermectin against Rhipicephalus microplus ticks

Author:
Mukesh Shakya; Abhijit Nandi; Ashutosh Fular; Sachin Kumar; Nisha Bisht; Anil Kumar Sharma; Kaushlendra Singh; Rajesh Kumar; Satyanshu Kumar; Sanis Juliet; Srikanta Ghosh
Source:
Ticks and tick-borne diseases 2022 v.13 no.6 pp. 102006
ISSN:
1877-959X
Subject:
Rhipicephalus microplus,   etc   ; deltamethrin; ivermectin; lethal concentration 50; maleates; phosphates; piperonyl butoxide; resistance management; synergism; ticks; verapamil; India;     Show all 12 Subjects
Abstract:
... The present study was taken up to evaluate the synergistic properties of piperonyl butoxide (PBO), diethyl maleate (DEM), triphenyl phosphate (TPP) and verapamil (VER) with deltamethrin (DLM) and ivermectin (IVM) against DLM and IVM resistant tick populations collected from Madhya Pradesh and Punjab states of India. The collected field tick populations were resistant to DLM (Resistance Factor [RF] ...
DOI:
10.1016/j.ttbdis.2022.102006

14. Evaluation of cytotoxic effects of amitraz and fipronil on digestive, reproductive and neural processes of engorged Rhipicephalus microplus (Acari: Ixodidae) female

Author:
Ashutosh Fular; Nisha Bisht; Anil Kumar Sharma; Gajanan Chigure; Gaurav Nagar; Srikant Ghosh
Source:
Ticks and tick-borne diseases 2022 v.13 no.6 pp. 102031
ISSN:
1877-959X
Subject:
Rhipicephalus microplus,   etc   ; amitraz; apoptosis; cytoplasm; cytotoxicity; digestive system; females; fipronil; livestock; markets; oocytes; peripheral nerves; pets; ticks;     Show all 14 Subjects
Abstract:
... Fipronil and amitraz are potentially toxic compounds used for controlling ticks infesting pet and livestock. The use of fipronil on large animals was limited because of its high costs while amitraz is still persisting in the market since its introduction over four decades ago. Though resistance in ticks against these pesticides has been reported worldwide since 2000, the toxicity of these chemical ...
DOI:
10.1016/j.ttbdis.2022.102031

15. Chemical composition of essential oils of different Siparuna guianensis chemotypes and their acaricidal activity against Rhipicephalus microplus (Acari: Ixodidae): influence of α-bisabolol

Author:
Juliana Aparecida Diniz; Paula Marchesini; Viviane Zeringóta; Renata da Silva Matos; Tatiane Pinheiro Lopes Novato; Diego Melo; Letícia Vale; Welber Daniel Zanetti Lopes; Geovany Amorim Gomes; Caio Monteiro
Source:
International journal of acarology 2022 v.48 no.1 pp. 36-42
ISSN:
1945-3892
Subject:
Rhipicephalus microplus,   etc   ; Siparuna; acaricidal properties; acarology; adults; chemical composition; chemotypes; gas chromatography-mass spectrometry; germacrene; larvae; mortality; Brazil;     Show all 12 Subjects
Abstract:
... In the present study, chemical characterization of essential oils (EOs) from different chemotypes of Siparuna guianensis was performed and their acaricidal activity against Rhipicephalus microplus evaluated. Leaves of S. guianensis were collected from three municipalities of the Zona da Mata region, Minas Gerais State, Brazil: São Miguel do Anta (SMA), Tocantins (TO), and Viçosa (VI). The EOs chem ...
DOI:
10.1080/01647954.2021.2009910

16. Effect of Metarhizium anisopliae s.l. on Rhipicephalus microplus free-living stage and persistence in the soil in the Brazilian Northeast

Author:
Inês dos Santos Pereira; Ially de Almeida Moura; Raoni Andrade Pires; Leandro de Souza Rocha; Ossival Lolato Ribeiro; Joselito Nunes Costa; Wendell Marcelo de Souza Perinotto
Source:
Biocontrol science and technology 2022 v.32 no.5 pp. 648-662
ISSN:
1360-0478
Subject:
Rhipicephalus microplus,   etc   ; Metarhizium anisopliae; Urochloa brizantha; bioassays; biological control; conidia; fungal growth; fungi; mortality; oils; pathogenicity; soil; viability;     Show all 13 Subjects
Abstract:
... The present study evaluated the pathogenicity of Metarhizium anisopliae sensu lato (s.l.) in aqueous and oil formulations against Rhipicephalus microplus in semi-field conditions and the persistence of this microorganism in the soil. Engorged females were used in a biological assay, set in vessels cultivated with Urochloa brizantha and sprayed with 80 mL of the proposed treatments. Four treatments ...
DOI:
10.1080/09583157.2022.2040430

17. Rhipicephalus microplus: An overview of vaccine antigens against the cattle tick

Author:
Diogo Fonseca Soares Pereira; Helen Silva Ribeiro; Ana Alice Maia Gonçalves; Augusto Ventura da Silva; Daniel Ferreira Lair; Diana Souza de Oliveira; Diego Fernandes Vilas Boas; Ingrid dos Santos Soares Conrado; Jaqueline Costa Leite; Luccas Miranda Barata; Pedro Campos Carvalhaes Reis; Reysla Maria da Silveira Mariano; Thaiza Aline Pereira Santos; Danielle Carvalho Oliveira Coutinho; Nelder de Figueiredo Gontijo; Ricardo Nascimento Araujo; Alexsandro Sobreira Galdino; Paulo Ricardo de Oliveira Paes; Marília Martins Melo; Ronaldo Alves Pinto Nagem; Walderez Ornelas Dutra; Denise da Silveira-Lemos; Daniel Sobreira Rodrigues; Rodolfo Cordeiro Giunchetti
Source:
Ticks and tick-borne diseases 2022 v.13 no.1 pp. 101828
ISSN:
1877-959X
Subject:
Rhipicephalus microplus,   etc   ; acaricides; control methods; cross reaction; glutathione transferase; livestock; meat; metalloproteinases; milk; serine proteinases; ticks; vaccination; vaccines;     Show all 13 Subjects
Abstract:
... Rhipicephalus microplus, popularly known as the cattle tick, is the most important tick of livestock as it is responsible for significant economic losses. The use of chemical acaricides is still the most widely used control method despite its known disadvantages. Vaccination would be a safe alternative for the control of R. microplus and holds advantages over the use of chemical acaricides as it i ...
DOI:
10.1016/j.ttbdis.2021.101828

18. Evaluation of Repellency of Stop the Bites® Botanical Pesticide to White-Tailed Deer at Corn Feeders

Author:
John A. Goolsby; Lauren Maestas; Perot Saelao; Kimberly H. Lohmeyer
Source:
Southwestern entomologist 2022 v.47 no.2 pp. 277-284
ISSN:
0147-1724
Subject:
Rhipicephalus microplus,   etc   ; Boselaphus tragocamelus; Odocoileus virginianus; Rhipicephalus annulatus; Zea mays; cattle diseases; corn; deer; entomologists; pesticides; sprayers; Texas;     Show all 12 Subjects
Abstract:
... Stop the Bites® botanical pesticide was evaluated for repellent properties against white-tailed deer, Odocoileus virginianus (Zimmerman), at feeders with supplemental corn, Zea mays L., in Cameron County, Texas. The pesticide was tested as a ground treatment around feeders and as spray applied directly to deer as they consumed corn at supplemental feeders. With either treatment, there was no signi ...
DOI:
10.3958/059.047.0202

19. Acaricidal activity of essential oils from Curcuma zedoaria and Alpinia zerumbet rhizomes against Rhipicephalus (Boophilus) microplus (Acari: Ixodidae)

Author:
Gracieli Gomes Nonato Bressanin; Caio Márcio de Oliveira Monteiro; Paula Marchesini; Tatiane Pinheiro Lopes Novato; Francisco Eduardo Aragão Catunda Júnior; Sabrina Rita Da Fonseca Rezende; Emerson Guedes Pontes; Mário Geraldo de Carvalho; Andreia Lima Tomé Melo; Wendell Marcelo de Souza Perinotto
Source:
International journal of acarology 2022 v.48 no.1 pp. 61-66
ISSN:
1945-3892
Subject:
Rhipicephalus microplus,   etc   ; Alpinia zerumbet; Curcuma zedoaria; acaricidal properties; acarology; adults; camphor; chemical composition; cineole; hydrodistillation; larvae; mortality; p-cymene; sabinene;     Show all 14 Subjects
Abstract:
... This study aimed to determine the chemical composition and evaluate the acaricidal activity of essential oils (EOs) from Curcuma zedoaria and Alpinia zerumbet rhizomes against Rhipicephalus microplus in vitro. EOs were obtained by hydrodistillation and chemical characterization was performed by gas chromatography coupled with mass spectrometry (GC-MS). The acaricidal activity of each EO was firstl ...
DOI:
10.1080/01647954.2021.2016962

20. Identification of Rickettsia spp., Anaplasma spp., and an Ehrlichia canis-like agent in Rhipicephalus microplus from Southwest and South-Central China

Author:
Miao Lu; Junhua Tian; Xingliang Pan; Xincheng Qin; Wen Wang; Jintao Chen; Wenping Guo; Kun Li
Source:
Ticks and tick-borne diseases 2022 v.13 no.2 pp. 101884
ISSN:
1877-959X
Subject:
Rhipicephalus microplus,   etc   ; Anaplasma marginale; Rickettsia; blood meal; buffaloes; cattle; engorgement; fever; genes; genetic variation; horses; phylogeny; public health; ticks; China;     Show all 15 Subjects
Abstract:
... Rhipicephalus microplus is considered to be the most important tick infesting cattle, buffalo, horse, goats as well as other animals. They transmit diseases between domestic animals and act as vectors of a variety of zoonotic pathogens. Although pathogens harbored by R. microplus have been extensively studied, the Rickettsiales pathogens vectored by R. microplus in some areas of China remained lar ...
DOI:
10.1016/j.ttbdis.2021.101884