Banca de DEFESA: ANDERSON BRUNO ANACLETO DE ANDRADE

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ANDERSON BRUNO ANACLETO DE ANDRADE
DATE: 16/08/2022
TIME: 08:00
LOCAL: google meet e presencial no CECA
TITLE:

Chemical ecology of Arecaceae defoliating pests: Coraliomela brunnea Thumberg, (Coleoptera: Chrysomelidae) and Brassolis sophorae Linnaeus (Lepidoptera: Nymphalidae)

KEY WORDS:

 

 

cuticular compounds; sexual dimorphism; semiochemicals; green leaf volatiles.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

The palm trees have economic and ornamental importance. Its cultivation is usually attacked by several pests, including defoliating insects, such as the caterpillar Brassolis sophorae and the beetle Coraliomela brunnea. The monitoring and development of control methods are essential in the search for integrated management of these insect pests. The present work aims to investigate the semiochemicals associated with B. sophorae and C. brunnea to control and monitor these pests of Arecaceae. Through the description of morphological and behavioral characteristics, analysis of volatiles emitted by coconut palm leaves, identification of compounds associated with insect body parts with the possible pheromone function and testing of these compounds through bioassays and verification of attractive activity. In the morphological characteristics, we observed that in the antennae of C. brunnea the sensory structures are trichoid sensilla, with no difference between the sexes. In addition, the females of C. brunnea have a longer and wider body, and the fifth urosternite is longer than males, allowing sex differentiation in adults. In B. sophorae antennae, the sensilla are of three types, trichoid, chaetic and coeloconic, with no difference between sexes. In the hindwings of males of B. sophorae, there is the presence of androconia. This morphological structure serves as sexual dimorphism and may be associated with the release of the male-specific coumaran compound, which has bioactivity for females. The volatile compounds of green leaves emitted by coconut leaflets are four compounds, being n-hexanal and (Z)-3-Hexen-1-ol active for males of C. brunnea. The compounds present in parts of the body of C. brunnea are similar in quantity between sexes, with long-chain alkanes as the majority. The parts extracts showed two active compounds for males and females, and the male leg extract was attractive for C. brunnea females.

BANKING MEMBERS:
Presidente - 1119939 - ANTONIO EUZEBIO GOULART SANTANA
Interno - 024.985.859-23 - ELIO CESAR GUZZO - USP
Interna - 2337920 - ROSEANE CRISTINA PREDES TRINDADE
Externa ao Programa - 2120103 - MARILIA OLIVEIRA FONSECA GOULART
Externo à Instituição - RICARDO SALES TINOCO