Banca de QUALIFICAÇÃO: JOICE KESSIA BARBOSA DOS SANTOS

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : JOICE KESSIA BARBOSA DOS SANTOS
DATE: 24/04/2024
TIME: 08:00
LOCAL: Google meet
TITLE:

Study of the semiochemicals involved in the intraspecific interaction of Euchroma gigantea (L.,1758) (Coleoptera:
Buprestidae) in Pachira aquatica Aubl (Malvaceae)

KEY WORDS:

Buprestidae; Behavioral control; MIP;Pheromone

PAGES: 60
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUMMARY:

The beetle Euchroma gigantea (Linnaeus) (Coleoptera: Buprestidae) is a neotropical species that occurs in regions with a hot, dry or humid climate. It is considered a pest that causes damage to the support system of trees in the Malvaceae family, where the larvae feed on the cortical and subcortical tissues of the plant, causing its death. To date, there is no record of any control method in the Ministry of Agriculture, Livestock and Supply of a product for the management of E. gigantea, which makes the pheromone a useful tool for its  control, its use in integrated pest management (MIP) is growing and meets the recommended model for agriculture of the future. This work aimed to determine the sexual or aggregation pheromone of the species Euchroma gigantea Linnaeus 1758 (Coleoptera: Buprestidae) with the development of a bait for use in Integrated Pest Management (IPM). Adult insects were collected manually from the Pachira aquatica plant, and male and female volatiles were obtained using the dynamic headspace technique and solvent extraction. Chemical analysis revealed the presence of twelve compounds in the aeration extracts, and thirteen compounds identified in the solvent extraction. Electrophysiological analysis revealed that in the aeration samples, four compounds were considered active for E.gigantea, these being (nonanal, decanal, 1-decyne and 1,2-benzenedicarboxylate acid, ester (2-methylpropyl). The results observed in the bioassays showed that the baits significantly attracted insects, but it is not yet possible to define the efficiency of the pheromone in the field

COMMITTEE MEMBERS:
Presidente - 1119939 - ANTONIO EUZEBIO GOULART SANTANA
Interno(a) - 426640 - FABIANE CAXICO DE ABREU GALDINO
Externo(a) ao Programa - 2149347 - HENRIQUE FONSECA GOULART - nullExterno(a) ao Programa - 2458049 - ITALO MARCOS NUNES DE OLIVEIRA - nullExterno(a) à Instituição - NIVIA DA SILVA DIAS PINI