Loss of in vitro Efficacy of Topical Commercial Acaricides on Rhipicephalus microplus (Ixodida: Ixodidae) From Antioquian Farms, Colombia

Journal of Medical Entomology
Jonathan M PuertaDavid Villar

Abstract

In Antioquia, the problems to control Rhipicephalus microplus (Canestrini, 1888) tick infestations have spread and ranchers claim conventional treatments are no longer effective. In this study, the in vitro efficacy of commercial topical products was tested with ticks obtained from two dairy farms in Antioquia with severe repeated infestations. About 800 engorged ticks were collected directly from animals in two separate visits at the beginning and end of the same month. The adult immersion test was used, which exposed groups of 40 ticks from each collection at the recommended concentration for five commercial products and combinations for 5 min. Efficacy was determined by comparing the reproductive index (fecundity × fertility) of each treated group to that of the control group. The values of all reproductive parameters obtained with ticks from the two collection dates were very similar. Cypermethrin (150 ppm) and amitraz (208 ppm) separately showed very low efficacies of only 10-20% at one farm, and zero at the other. The combination of chlorpyrifos + cypermethrin was the only product with an efficacy >50% at both farms and field observations corroborated to be still capable of eliminating infestations. Exposure to fluazuron ...Continue Reading

References

Feb 1, 1973·Journal of Economic Entomology·R O DrummondO H Graham
Jan 6, 2009·Annals of the New York Academy of Sciences·Maribel BravoAlfredo Coronado
Jul 5, 2011·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Renato AndreottiAdalberto Pérez de Léon
Jul 27, 2012·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Luana Paula Haubold Neis VeigaHelena Mondardo Cardoso
Dec 15, 2012·Ticks and Tick-borne Diseases·Jenevaldo Barbosa da SilvaAdivaldo Henrique da Fonseca
Mar 30, 2013·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·José Tadeu RaynalRicardo Wagner Portela

❮ Previous
Next ❯

Citations

May 2, 2019·Parasite : Journal De La Société Française De Parasitologie·Pablo JunqueraAlicia Macdonald
Sep 25, 2016·Parasites & Vectors·Berlin Londono-RenteriaTonya M Colpitts
Nov 2, 2017·Revista brasileira de parasitologia veterinária = Brazilian journal of veterinary parasitology : Órgão Oficial do Colégio Brasileiro de Parasitologia Veterinária·Caroline Zamperete ReginatoFernanda Silveira Flores Vogel
Jul 20, 2019·Environmental Health Insights·David Villar, David J Schaeffer
Jun 18, 2021·Ticks and Tick-borne Diseases·Luiz Henrique de La CanalGuilherme M Klafke

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.