Results: 36

Integrative analysis in toxicological assessment of the insecticide Malathion in Allium cepa L. system

Braz. j. biol; 83 (), 2023
Abstract For many centuries human populations have been suffering and trying to fight with disease-bearing mosquitoes. Emerging and reemerging diseases such as Dengue, Zika, and Chikungunya affect billions of people around the world and recently has been appealing to control with chemical pesticides. Mal...

Toxicity and larvicidal activity on Aedes aegypti of citronella essential oil submitted to enzymatic esterification

Braz. j. biol; 83 (), 2023
Abstract The essential oil of citronella (Cymbopogon winterianus) has several biological activities, among them the insect repellent action. Some studies showed that cinnamic acid esters can be applied as natural pesticides, insecticides and fungicides. In this context, the objective of the present work ...

Honey as a bioindicator of environmental organochlorine insecticides contamination

Braz. j. biol; 83 (), 2023
Abstract Honey is a suitable matrix for the evaluation of environmental contaminants including organochlorine insecticides. The present study was conducted to evaluate residues of fifteen organochlorine insecticides in honey samples of unifloral and multifloral origins from Dir, Pakistan. Honey samples (...

Seguridad y satisfacción de fumigadores para el control de enfermedades transmitidas por vectores en Arequipa

Las enfermedades transmitidas por vectores (ETV) van en repunte, la seguridad y satisfacción del equipo que trabaja en el área de fumigación son prioridad, ya que son el personal clave y estratégico para hacer frente a estas enfermedades que son un gran problema de la salud pública a nivel mundial. ...

Using Citronella to Protect Bees (honeybee Apis mellifera L. ) from certain Insecticides and Their Nano Formulations

Braz. j. biol; 81 (4), 2021
Abstract Experiments were performed investigating citronella (Cymbopogon winterianus Jowitt) as a repellent to honeybee Apis mellifera (L.) (Hymenoptera: Apidae) in Egypt, it was conducted in laboratory in the Department of Entomology and Pesticides Science, Faculty of Agriculture, Cairo University, to c...

Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals

Braz. j. biol; 80 (4), 2020
Abstract Fumigant activities for three essential oils; Garlic oil (Allium sativum L); Chili pepper (Capsicum annuum L.) and Nigella (Nigella sativa L.) were assessed at different concentrations against the adult and 20-days old larval stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) in ...

Determination of insecticides' lethal concentrations and metabolic enzyme levels in Triatoma dimidiata

Salud pública Méx; 62 (4), 2020
Abstract: Objective: The feasibility of the use of WHO impregnated paper and biochemical assays to determine lethal concentrations (LC50 and LC99) and insecticide metabolic enzyme levels of Triatoma dimidiata. Materials and methods: LC50 and LC99 were calculated with WHO papers impregnated at different...

Genotoxic Effects of Semi-Synthetic Isodillapiole on Oviposition in Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae)

Abstract INTRODUCTION: Semi-synthetic dillapiole compounds derived from Piper aduncum essential oil are used as alternative insecticides to control insecticide-resistant Aedes aegypti. Thus, we aimed to evaluate the genotoxic effects of semi-synthetic isodillapiole on the nuclei of neuroblasts (larvae)...

Ototoxicity of boric acid powder in a rat animal model

Abstract Introduction: Boric acid, which has antiseptic and acidic properties, is used to treat external and middle ear infections. However, we have not found any literature about the effect of boric acid powder on middle ear mucosa and inner ear. Objective: The purpose of this study is to investigate ...

Toxicity and motor changes in Africanized honey bees (Apis mellifera L) exposed to fipronil and imidacloprid

An. acad. bras. ciênc; 90 (1), 2018
ABSTRACT This study evaluated the in vitro toxicity and motor activity changes in African-derived adult honey bees (Apis mellifera L.) exposed to lethal or sublethal doses of the insecticides fipronil and imidacloprid. Mortality of bees was assessed to determine the ingestion and contact lethal dose for ...