Banca de QUALIFICAÇÃO: ANDERSON BRUNO ANACLETO DE ANDRADE

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : ANDERSON BRUNO ANACLETO DE ANDRADE
DATE: 29/09/2021
TIME: 08:00
LOCAL: video conferencia google meet
TITLE:

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

KEY WORDS:

 

 

Semiochemicals; Cuticular compounds; Short-range pheromone.

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 generally attacked by several pests, including defoliating insects, such as the caterpillar Brassolis sophorae and the beetle Coraliomela brunnea. In Brazil there are no products registered to control these pests. Thus, it is important to search for methods that enable integrated management. The objective of this work was to investigate the semiochemicals associated with B. sophorae and C. brunnea for the control and/or monitoring of these defoliating pests of Arecaceae, through the description of taxonomic, morphological and behavioral characteristics, analysis of compounds associated with parts of the insect body with the purpose of possible short-range pheromone function and testing of these compounds through bioassays and verification of attractive activity. In the morphological characteristics, it was observed that the antennae of B. sophorae have sensory structures of three types, trichoid, chaetic and coleoconic, with no difference between sexes. The trichoid sensilla are associated with the function of pheromone receptors, the chemosensory chaetic and coleoconic. Regarding the compounds of the parts, the wings of males of B. sophorae show greater diversity with a specific major compound, having long-chain alkane compounds as components in male and female wings. The compounds present in parts of the body of C. brunnea are similar in quantity between sexes, with the main compounds being long-chain alkanes. The extracts of parts have two active compounds for males and females and the male leg extract proved to be attractive for C. brunnea females. Studies with semiochemicals associated with these pests can contribute to the development of techniques for integrated management.

 

 

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