Banca de DEFESA: MILENA LARISSA GONÇALVES SANTANA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : MILENA LARISSA GONÇALVES SANTANA
DATE: 24/02/2023
TIME: 08:00
LOCAL: Recife
TITLE:

EFFECTS OF ESSENTIAL OILS AND INSECTICIDES ON THE BIOLOGY AND NUTRITIONAL PARAMETERS OF Neoleucinodes elegantalis (GUENÉE) (LEPIDOPTERA: CRAMBIDAE) AND Trichogramma pretiosum RILLEY (HYMENOPTERA: TRICHOGRAMMATIDAE).

KEY WORDS:

tomato, essential oils, biology, parasitoid, small tomato borer, nutrition

PAGES: 92
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUMMARY:

Neoleucinodes elegantalis Guenée (Lepidoptera: Crambidae), stands out as one of the main pests of tomato production, causing direct damage by severely infesting the fruits. Its control is done by chemical insecticides, but due to the endophytic habit, it is necessary to apply recurrent broad-spectrum insecticides. Thus, essential oils associate with biological control emerge as biorational alternatives to minimize the effects of continuous and improper use of these products. Despite the growing interest in these control methods and the already proven promising results, there are few studies that elucidate the possible effects of oils on the performance of natural enemies. Thus, this research aims to analyze the effects of essential oils from Origanum majorana and Copaifera officinalis, on the biology and nutrition of N. elegantalis, as well as their effects on T. pretiosum, comparing with the formulated products azadirachtin and deltamethrin. The LC50 of the referred oils were used, through the establishment of the concentration curve, and the recommended field dose for the insecticides. The following were analysed: 1. Regarding the oils: the chemical profile through GC-MS; 2. Regarding the pest: average entry and exit of holes in the fruits, biology (larval development, pre-pupa and pupa weight, pupal development), reproduction iv (oviposition and viability), nutrition (proteins, lipids, glycogen and total sugar); 3. Regarding the parasitoid: biology (parasitism, emergence, longevity, sex ratio, toxicity class and reduction of parasitism), functional and numerical response (attack rate, manipulation time and type of response). Among the tested oils and insecticides, C. officinalis showed the best performance by altering important parameters of pest biology (elongation of larval development and reduction in pre-pupa and pupa weight), presenting greater selectivity to the parasitoid, in addition to reducing the time of manipulation and increase the attack rate, being therefore promising in the control of this pest due to its effectiveness and beneficial interaction with T. pretiosum.

COMMITTEE MEMBERS:
Presidente - VALERIA WANDERLEY TEIXEIRA
Interno - JORGE BRAZ TORRES
Externo ao Programa - 384942 - ALVARO AGUIAR COELHO TEIXEIRA - UFRPEExterno à Instituição - ANDREZO ADENILTON SANTOS
Externo à Instituição - DOUGLAS RAFAEL E SILVA BARBOSA