ctenocephalides felis felis
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Author(s):  
Juliana Pereira Freitas ◽  
Ingrid Lins Raquel de Jesus ◽  
Jéssica Karoline de Oliveira Chaves ◽  
Isabela Scalioni Gijsen ◽  
Diefrey Ribeiro Campos ◽  
...  

Abstract The essential oils (EOs) of Illicium verum and Pelargonium graveolens were evaluated for lethality, inhibition of development and residual efficacy against the flea Ctenocephalides felis felis. Their chemical composition was characterized by means of gas chromatography with a flame ionization and mass spectrometry detection. Mortality at different immature stages and among adult fleas was measured through in vitro filter paper tests at different concentrations of EOs. The chemical characterization of I. verum volatile oil showed that E-anethole (79.96%) was the major constituent, while the major compounds in P. graveolens were citronellol (29.67%) and geraniol (14.85%). Insecticidal activity against both immature and adult flea stages were observed. The EO of I. verum had insecticidal activity for approximately 18 days, while the EO activity of P. graveolens lasted for 13 days. The pulicidal activity of I. verum remained above 70% for up to 9 days, while the activity of P. graveolens was 41.7% for up to 2 days. Essential oils, especially that of I. verum, showed insecticidal activity for flea control at different life cycle stages and have potential for the development of ectoparasiticides (biopesticides) for veterinary use.


Author(s):  
Ana Clécia dos Santos Silva ◽  
Aline Ticiani Pereira Paschoal ◽  
Juliana Correa Bernardes ◽  
Andressa Maria Rorato Nascimento de Matos ◽  
Letícia Santos Balbino ◽  
...  

Abstract This study aimed to identify the intestinal parasites of road-killed wild felines in the North Central and North, Paraná state, southern Brazil. The animals were monitored by sampling previously established transects. The places where the felines were run over were mapped, the animals were identified, and the gastrointestinal tract was evaluated. The feces were submitted to coproparasitological techniques of spontaneous sedimentation, floating in hypersaturated NaCl solution and centrifugal floating in zinc sulfate. All the parasitic structures detected were photomicrographed. In the coproparasitological analyses were identified oocysts of Cystoisospora spp., eggs of Ancylostomatidae, and Capillaria spp.; eggs of Aelurostrongylus spp., Toxocara spp., Physaloptera spp., Taenia spp., and Spirometra spp.; Aelurostrongylus abstrusus larvae; and eggs and adults of Ancylostoma cati and Taenia spp. One of the cats was parasitized by a flea of Ctenocephalides felis felis. Based on these results, the animals analyzed in this study supplied important samples for the evaluation of parasitic diversity of North of Paraná and suggested that this region may have conditions that allow the maintenance of these parasites life cycles in the environment and among wildlife.


2020 ◽  
Author(s):  
Verónica Santoyo‐Colín ◽  
Sokani Sánchez‐Montes ◽  
Beatriz Salceda‐Sánchez ◽  
Herón Huerta‐Jiménez ◽  
Virginia Alcántara‐Rodríguez ◽  
...  

2020 ◽  
Vol 21 ◽  
pp. 100433
Author(s):  
Sokani Sánchez-Montes ◽  
Beatriz Salceda-Sánchez ◽  
Gerardo G. Ballados-González ◽  
Laura Valtierra-Alzaga ◽  
Juan J. Soto-Gutiérrez ◽  
...  

2020 ◽  
Vol 282 ◽  
pp. 109126
Author(s):  
Monique Moraes Lambert ◽  
Diefrey Ribeiro Campos ◽  
Debora Azevedo Borges ◽  
Barbara Rauta de Avelar ◽  
Thais Paes Ferreira ◽  
...  

2020 ◽  
Vol 40 (3) ◽  
pp. 651-656
Author(s):  
Ashutosh Fular ◽  
Geeta ◽  
Gaurav Nagar ◽  
Mukesh Shakya ◽  
Nisha Bisht ◽  
...  

Parasitology ◽  
2020 ◽  
Vol 147 (3) ◽  
pp. 340-347 ◽  
Author(s):  
João Vitor Barbosa dos Santos ◽  
Douglas Siqueira de Almeida Chaves ◽  
Marco André Alves de Souza ◽  
Cristiano Jorge Riger ◽  
Monique Moraes Lambert ◽  
...  

AbstractEssential oils (EOs) are considered a new class of ecological products aimed at the control of insects for industrial and domestic use; however, there still is a lack of studies involving the control of fleas. Ctenocephalides felis felis, the most observed parasite in dogs and cats, is associated with several diseases. The aim of this study was to evaluate the in vitro activity, the establishment of LC50 and toxicity of EOs from Alpinia zerumbet (Pers.) B. L. Burtt & R. M. Sm, Cinnamomum spp., Laurus nobilis L., Mentha spicata L., Ocimum gratissimum L. and Cymbopogon nardus (L.) Rendle against immature stages and adults of C. felis felis. Bioassay results suggest that the method of evaluation was able to perform a pre-screening of the activity of several EOs, including the discriminatory evaluation of flea stages by their LC50. Ocimum gratissimum EO was the most effective in the in vitro assays against all flea stages, presenting adulticide (LC50 = 5.85 μg cm−2), ovicidal (LC50 = 1.79 μg cm−2) and larvicidal (LC50 = 1.21 μg cm−2) mortality at low doses. It also presented an excellent profile in a toxicological eukaryotic model. These findings may support studies involving the development of non-toxic products for the control of fleas in dogs and cats.


2020 ◽  
Vol 42 (1) ◽  
Author(s):  
Renan Bernardes Tavares ◽  
Gabriela Pereira Salça de Almeida ◽  
Jessica Karoline Oliveira Chaves ◽  
Diefrey Ribeiro Campos ◽  
Thaís Ribeiro Correia

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