Banca de DEFESA: EDSON FERREIRA DE LIMA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : EDSON FERREIRA DE LIMA
DATE: 25/02/2022
TIME: 09:00
LOCAL: Plataforma Google Meet
TITLE:

Bioecological aspects of Zagreus bimaculosus (Mulsant) (Coleoptera: Coccinellidae) on scale and flour mealybugs.

KEY WORDS:

Insecta,interactions,ecologicalfactors,biological control.

PAGES: 52
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

Coccinellids are an important group of insects that are known as ladybugs. Its varied size, of different colors and stains on its elytra, whether traces or macules. The body has a more or less oval shape with a convex dorsal surface and a flat ventral surface, as they have the ability to feed on a wide range of herbivorous insects such as aphids, mealybugs, psyllids, thrips and lepidopteran larvae, they are excellent biological control agents. of various pests in various agroecosystems. Among the various pests that affect crops, mealybugs belonging to the Diaspididae and Pseudococcidae families, popularly known as scale and mealybugs, have stood out for the fact that they attack a wide range of cultivated plants, which has brought numerous losses to producers. Considering the potential that coccinellids have as biological controllers of this group of insects, the main objective of this work was to compare the biology and predatory capacity of Z. bimaculosus, feeding on Diaspis echinocacti and Planococcus citri, as well as to test the predator's viability in the fourth-instar and adult larval stages on mealybugs F. dasylirii (Cockerell) (Hemiptera: Pseudococcidae) and P. citri (Risso) (Hemiptera: Pseudococcidae). For this, the comparative biology of Z. bimaculosus feeding on two different preys, D. echinocacti scale mealybug and P. citri mealy mealybug, was performed. The results showed differences in some biological variables, such as the development time being shorter for those fed with D. echinocacti. In the second experiment, the predation rate and the functional response of larvae and adults of Z. bimaculosus were analyzed against two phases (nymphs and adults) of mealybugs, F. dasylirii and P. citri, in both experiments, both larvae and Z. bimaculosus adults showed a type II functional response, about handling time, this time was shorter for adults when compared to larvae. The results of this work showed that Z. bimaculosus presents itself as a potential controller of Diaspididae and Pseudococcidae mealybugs, since it can complete its cycle and reproduce with these types of prey, indicating that it is an ideal food for this predator. The functional responses indicate that Z. bimaculosus is an efficient predator for the control of these mealybug species.

BANKING MEMBERS:
Presidente - 3007246 - MAURICIO SILVA DE LIMA
Interno - 1119939 - ANTONIO EUZEBIO GOULART SANTANA
Interno - 1642163 - EDMILSON SANTOS SILVA
Externo à Instituição - DOUGLAS RAFAEL E SILVA BARBOSA
Externa à Instituição - Glaucilane dos Santos Cruz - UFRPE