Results: 350

Assessing Community Dynamics and Colonization Patterns of Assessing Community Dynamics and Colonization Patterns of Tritatoma dimidiata Tritatoma dimidiata and Other Biotic Factors Associated with and Other Biotic Factors Associated with Chagas Disease Prevalence in Central America Chagas Disease Prevalence in Central America

Chagas disease is caused by the parasite Trypanosoma cruzi and transmitted by multiple triatomine vectors across the Americas. In Central America, the predominant vector is Triatoma dimidiata, a highly adaptable and genetically diverse Hemiptera. In this research, we used a novel reduced-representation D...

CARRAPATICIDAS E INSETICIDAS NO CONTROLE QUÍMICO DE TRIATOMÍNEOS
Tickicides and insecticides in the chemical control of Triatomines

Colloq. Agrar; 13 (1), 2017
Diversos trabalhos foram realizados ao longo da história do Brasil com o intuito de se controlar e erradicar os bichos barbeiros do ambiente habitado por seres humanos, incluindo a realização de controle químico com hexaclorociclohexanos. O objetivo desta pesquisa foi avaliar a ...

Reinfestação domiciliar com Triatoma infestans (Hemiptera: Reduviidae) após pulverização comunitária com inseticidas no Chaco argentino: um processo multifatorial
House Reinfestation With Triatoma infestans (Hemiptera: Reduviidae) After Community-Wide Spraying With Insecticides in the Argentine Chaco: A Multifactorial Process

J. med. entomol; 54 (3), 2017
We investigated the dynamics and underlying causes of house (re)infestation with Triatoma infestans (Klug 1834) after a community-wide residual spraying with pyrethroids in a well-defined rural section of Pampa del Indio municipality (northeastern Argentina) over a 4-yr period. House infestation was asse...

Implementação de um sistema de vigilância-resposta de vetores para o controle da doença de Chagas: um ensaio de campo de 4 anos na Nicarágua
Implementing a vector surveillance-response system for chagas disease control: a 4-year field trial in Nicaragua

Infect. dis. poverty; 6 (18), 2017
Abstract Background: Chagas disease is one of the neglected tropical diseases (NTDs). International goals for its control involve elimination of vector-borne transmission. Central American countries face challenges in establishing sustainable vector control programmes, since the main vector, Triatoma dim...

A methodology based on insecticide impregnated filter paper for monitoring resistance to deltamethrin in Triatoma infestans field populations

Med. vet. entomol; 31 (4), 2017
The domiciliary presence of Triatoma infestans (Klug) (Hemiptera: Reduviidae) after control interventions was reported in recent years. Toxicological studies showed high levels of resistance to pyrethroids suggesting resistance as one of the main causes of deficient control. The aim of the present study ...

Drivers of house invasion by sylvatic Chagas disease vectors in the Amazon-Cerrado transition: A multi-year, state-wide assessment of municipality-aggregated surveillance data

Plos negl. trop. dis; 11 (11), 2017
Background Insecticide spraying efficiently controls house infestation by triatomine bugs, the vectors of Trypanosoma cruzi. The strategy, however, is ineffective against sylvatic triatomines, which can transmit Chagas disease by invading (without colonizing) man-made structures. Despite growing awarenes...

The Botanical Monoterpenes Linalool and Eugenol Flush-Out Nymphs of Triatoma infestans (Hemiptera: Reduviidae)

J. med. entomol; 54 (5), 2017
Monoterpenes are the main components of essential oils. Some members of this chemical family present insecticidal activity. Triatoma infestans (Klug) is the main vector of Chagas disease in Argentina, Bolivia, Paraguay, and Perú. The objective of this work was to evaluate the effect of six monoterpenes ...

Systemic insecticide treatment of the canine reservoir of Trypanosoma cruzi induces high levels of lethality in Triatoma infestans, a principal vector of Chagas disease

Parasit & Vectors; 10 (344), 2017
Background Despite large-scale reductions in Chagas disease prevalence across Central and South America, Trypanosoma cruzi infection remains a considerable public health problem in the Gran Chaco region where vector-borne transmission persists. In these communities, peridomestic animals are major blood-m...

Efecto letal agudo de los insecticidas en formulación comercial Imidacloprid, Spinosad y Thiocyclam hidrogenoxalato en obreras de Bombus atratus (Hymenoptera: Apidae)

Rev. biol. trop; 64 (4), 2016
Resumen:Los efectos de los insecticidas sobre las abejas han cobrado gran atención a nivel mundial, sin embargo, son pocos los estudios sobre el efecto de estos agroquímicos en abejas Neotropicales. Bombus atratus es una especie neotropical, distribuida ampliamente en los Andes y es considerado un poli...

In vitro evaluation of the effect of botanical formulations used in the control of Aedes aegypti L. (Diptera: Culicidae) on liver enzymes.

Abstract: INTRODUCTION: Dengue fever is a viral disease transmitted by the Aedes aegypti Linn. (1792) (Diptera: Culicidae) mosquito, which is endemic in several regions of Brazil. Alternative methods for the control of the vector include botanical insecticides, which offer advantages such as lower envir...