Banca de DEFESA: RAMON DA LUZ BEZERRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAMON DA LUZ BEZERRA
DATE: 29/09/2023
TIME: 13:00
LOCAL: Sala Prof. Laerte Grisi (LQEPV)/ https://meet.google.com/fze-yhye-msr
TITLE:

Activity of triflumuron, diflubenzuron and association in the control of Ctenocephalides felis felis (Siphonaptera, Pulicidae). 

KEY WORDS:

larvae; control; developmental disruptors; benzoylphenylureas

PAGES: 48
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUBÁREA: Medicina Veterinária Preventiva
SPECIALTY: Doenças Parasitárias de Animais
SUMMARY:

The cat flea, known as Ctenocephalides felis felis, is the main ectoparasite found on domestic dogs and cats worldwide. These insects play a key role as vectors for important pathogens, and their saliva can trigger flea-bite allergic dermatitis.Insect growth regulators are widely used in control strategies and their combinations show promise for the development of new formulations. The aim of this study was to evaluate the activity of diflubenzuron and triflumuron, to calculate the estimated lethal concentrations (LC) and to evaluate the combination of these two regulators for immature forms of C. felis felis.In this study, first-stage C. felis felis larvae were tested in vitro on two grams of larval diet impregnated with diflubenzuron and triflumuron. After impregnation, the cycle was evaluated and the emergence of the challenged adults on day 28.A regulatory activity of 97.9% was observed at a concentration of 5 ppm (5 µg/g ) of diflubenzuron in 1st instar larvae and 100 % at a concentration of 10 ppm (10 µg/g ) of triflumuron .The lethal concentrations 50 for 1st instar larvae were 0.370 ppm (0.370 µg/g) for diflubenzuron and 3.45 ppm (3.45 µg/g) for Triflumuron .Based on these results, it can be said that these benzoylphenylureas were active on C.felis felis larvae, interfering in their development cycle and inhibiting the emergence of adults. However, these growth regulators did not have a synergistic effect on the control of C.felis felis.

COMMITTEE MEMBERS:
Presidente - 2929889 - THAIS RIBEIRO CORREIA AZEVEDO
Interna - ***.192.427-** - DEBORA AZEVEDO BORGES - UFRRJ
Interna - 1700427 - YARA PELUSO CID
Externo à Instituição - ISABELLA VILHENA FREIRE MARTINS - UFES
Externa à Instituição - VANESSA PAULINO DA CRUZ VIEIRA