Abstracts - Murillo B. Hafner

Type of the Presentation: Poster


Murillo B. Hafner1*, Renato C. Leal Netto 1, Lucila Wadt2, Rândilla R. C. dos Santos3, Paulo H. G. Zarbin3 and Carla F. Fávaro1

1 Universidade Estadual de Santa Cruz (UESC), Ilhéus – BA, Brasil

2 Universidade de São Paulo (ESALQ/USP), Piracicaba – SP, Brasil

3 Universidade Federal do Paraná (UFPR), Curitiba – PR, Brasil

* Correspondence: carlaffavaro@gmail.com

Heilipus catagraphus is an important pest of graviola and avocado crops in Brazil. The main damage is caused by the larvae stage which forms tunnels at the trunk basal part of the trees, preventing the sap from flowing through the plant and weakening them. So far, there are no efficient methods of control for this weevil.1 In this way, this work aims to identify the aggregation pheromone produced by H. catagraphus. Insects were collected in graviola plantations located in Una City, Bahia State, transferred to the Laboratory of Biological Control of the UESC, separated by sex and reared in plastic cages under room temperature and humidity conditions. Cuticular extracts were obtained by immersing an individual male or female in hexane for one minute. The extracts were then analyzed by gas-chromatography technique and three compounds released only by H. catagraphus males were observed. Olfactometer and electroantennographic (GC-EAG) bioassays are being performed to investigate the bioactivity of the natural compounds as well as the elucidation of their chemical structures.


1. Moura, J.I.L. and Bittencourt, M.A.L, Manejo Integrado das Pragas da Gravioleira no Sul da Bahia. EDITUS, 2015, 60p.