Banca de DEFESA: RAFAEL DE ALMEIDA LEITE

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAFAEL DE ALMEIDA LEITE
DATE: 28/06/2023
TIME: 09:00
LOCAL: Campus de Engenharias e Ciências Agrárias - CECA/UFAL
TITLE:

RED PALM MITE PERFORMANCE IN DWARF COCONUT CULTIVARS

KEY WORDS:

Raoiella indica; coconut mites; Cocos nucifera; resistant plants

PAGES: 59
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitossanidade
SPECIALTY: Entomologia Agrícola
SUMMARY:

The red palm mite Raoiella indica Hirst, 1924 (Acari: Tenuipalpidae) is an important pest of the coconut palm Cocos nucifera L. (Arecaceae) and has caused problems in coconut production due to its ease of dispersion and insufficient registered products to control it. Research has continued since its arrival on the American continent, aiming to control the mite through chemical, biological, alternative methods and through resistant plants. Resistant plants are a great alternative to reduce problems caused by pests. Therefore, the objective of this work was to evaluate the performance of R. indica in six dwarf coconut cultivars, in order to identify sources of resistance of these cultivars to the mite. The performance of R. indica was evaluated on the cultivars Green Dwarf from Brazil from Jiqui (AVeBrJ), Red Dwarf from Cameroon (AVC), Red Dwarf from Malaysia (AVM), Red Dwarf from Gramame (AVG), Yellow Dwarf from Gramame (AAG) and Yellow Dwarf from Malaysia (AAM), through confinement and free-choice tests, evaluating longevity, pre-oviposition and oviposition periods, fertility, fecundity, viability of life stages and choice for feeding and oviposition. The AVeBrJ cultivar was the most resistant to R. indica, providing the lowest adult survival, oviposition period, number of eggs, egg viability, fecundity and fertility, in addition to being less preferred in relation to AVM and AAM in the free-choice test. The resistance of this cultivar is probably related to some chemical factor.

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