The cattle tick Rhipicephalus (Boophilus) microplus is responsible for major losses in the Brazilian livestock, mainly due to reduction in cattle productive performance. Resistance development to major classes of acaricide widely used nowadays has been extensively reported, as well as the occurrence of residues from these compounds in animal products and the environment. This study aimed to evaluate the efficiency of acaricides on R. (B.) microplus collected from rural properties in the North-Central region of Bahia State. Ticks were collected in several cattle farms in the cited region, and an in vitro acaricide efficiency assay was performed based on the immersion of ticks in acaricide solutions made according to manufacturers' recommendations. The results obtained in the experiments indicated varying degrees of efficiency of the several bases studied, with the products benzofenilurea, macrocyclic lactone and fipronil showing the highest levels of efficiency, 100%, 100% and 97.34%, respectively. It was possible to conclude that, for the region studied, there are different degrees of commercial acaricides efficiency, and many present less than 95% effectiveness, value determined as acceptable by the Brazilian legislation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1590/s1984-29612013005000006 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Structural Optimization of Natural Plant Products: Construction, Pesticidal Activities, and Toxicology Study of New 2-Isopropanol-4-methoxy-7-alkyl/aryloxycarbonyl-()-vinyl-2,3-dihydrobenzofurans.
J Agric Food Chem
January 2025
College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China.
Recently, the structural optimization of natural bioactive products has been one of the important ways to discover new pesticide candidates. Based on osthole as a lead compound, herein, a series of new 2-isopropanol-4-methoxy-7-alkyl/aryloxycarbonyl-()-vinyl-2,3-dihydrobenzofuran derivatives were synthesized. Steric configurations of compounds , , , , , , and were confirmed by X-ray monocrystallography.
View Article and Find Full Text PDFEfficient Encapsulation and Controlled Release of the Pesticide Emamectin Benzoate in Polylactic Acid Microspheres Prepared by Modified Solvent Evaporation.
Molecules
December 2024
Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Emamectin benzoate (EB) is a highly effective broad-spectrum insecticide and acaricide. However, because EB is easily degraded, the conventional formulations of EB are often overapplied. In this study, polylactic acid (PLA)-based microspheres were prepared using the modified solvent evaporation method for the controlled release of EB.
View Article and Find Full Text PDFGrowth kinetics and population density of a laboratory colony of the poultry red mite (Dermanyssus gallinae) established in Japan.
J Vet Med Sci
January 2025
Department of Molecular and Cellular Parasitology, Graduate School of Medical Sciences, Kitasato University.
Article Synopsis
- The poultry red mite (PRM) poses a significant threat to the poultry industry due to its blood-feeding habits and role as a vector for pathogens.
- The study successfully established a stable PRM laboratory colony, allowing for consistent research on mite behavior and drug discovery amidst growing acaricidal resistance.
- Growth data showed that PRM population increased significantly over 28 days, demonstrating effective maintenance conditions for future studies on pest control strategies.
Biological control of ticks in domestic environments: Modeling the potential impact of entomopathogenic fungi on the transmission of East Coast fever in cattle.
Ticks Tick Borne Dis
December 2024
Quantitative Veterinary Epidemiology, Wageningen University & Research, Wageningen, the Netherlands.
Biological control of ticks using entomopathogenic fungi (EPF) is a highly desired alternative to chemical acaricides for the control of tick-borne pathogens. For Metarhizium anisopliae isolate ICIPE 7, one of these EPFs, efficacy against multiple tick species has been demonstrated in laboratory and field settings. However, we currently have little quantitative understanding of how EPFs can impact transmission.
View Article and Find Full Text PDFSublethal effects of chlorfenapyr and acequinocyl on the functional and numerical responses of the predatory mites Phytoseiulus persimilis and Neoseiulus californicus (Acari: Phytoseiidae) feeding on Tetranychus urticae (Acari: Tetranychidae).
Exp Appl Acarol
December 2024
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Tetranychus urticae Koch, commonly known as two spotted spider mites, is a major agricultural pest that causes significant economic loss. Predatory mites, such as Phytoseiulus persimilis Athias-Henriot and Neoseiulus californicus (McGregor) are important biological control agents for this pest. However, the efficacy of these predators can be compromised by pesticide application.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!