Banca de DEFESA: DEIVIDY VICENTE DO NASCIMENTO

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : DEIVIDY VICENTE DO NASCIMENTO
DATE: 23/02/2026
TIME: 08:00
LOCAL: Auditório CEAGRI II
TITLE:

Friend or foe? Investigating the dual role of Euborellia annulipes (Lucas) (Dermpatera: Anisolabididae) in integrated pest management for brassicas

KEY WORDS:

Euborellia annulipes, omnivorous predators, trophic interactions, zoophytopagy release rate, multiple release, biological control.

PAGES: 97
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

The ring-legged earwig, Euborellia annulipes (Lucas) (Dermaptera: Anisolabididae), is an omnivorous predator found in various agroecosystems, including brassica crops, with great potential for use in integrated pest management. Therefore, the study conducted in this thesis aimed to elucidate the impact of this natural enemy's herbivory on its biology, as well as its field efficiency as a biological control agent. Although the species exhibits omnivorous habits, supplementing the diet with plant material from different brassica species (Pak choi cabbage, Portuguese cabbage, cabbage, and radish) did not result in biological improvement. However, second-instar nymphs were able to complete their development by feeding exclusively on Pak choi cabbage (66%) and Portuguese cabbage (43.3%). Earwig herbivory was more pronounced in the absence of food; nonetheless, even with weekly releases in the absence of prey, the earwig was not capable of compromising the yield of Pak choi cabbage. Regarding practical application, the release of E. annulipes proved to be a viable alternative, where the release of four earwigs per two plants promoted effective pest control. Furthermore, the integration between chemical and biological control allowed for a reduction in insecticide applications while maintaining pest suppression. Thus, it is concluded that the predatory earwig E. annulipes is a robust natural enemy, capable of surviving periods of prey scarcity through herbivory without causing economic damage to the crop. Its incorporation into brassica production systems offers a sustainable strategy to reduce reliance on synthetic pesticides.

COMMITTEE MEMBERS:
Presidente - JORGE BRAZ TORRES
Externo ao Programa - 1487701 - WALTER SANTOS EVANGELISTA JUNIOR - UFRPEExterno à Instituição - FABRICIO FAGUNDES PEREIRA
Externa à Instituição - NATALY DE LA PAVA SUAREZ
Externo à Instituição - ROGÉRIO LIRA