Banca de QUALIFICAÇÃO: LUCAS FARO BASTOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : LUCAS FARO BASTOS
DATA : 18/12/2018
HORA: 14:00
LOCAL: Auditório do PgAgro
TÍTULO:

SPACE-TEMPORAL ANALYSIS OF HAPLAXIUS CRUDUS VAN DUZEE, 1907 (HEMIPTERA: CIXIIDAE) IN PLANT OF COQUEIRO IN THE MUNICIPALITY OF SANTA ISABEL DO PARÁ- PA

PALAVRAS-CHAVES:

altimetry, geostatistics, pest monitoring, semivariogram, kriging.

PÁGINAS: 40
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
RESUMO:

The  Haplaxius crudus is the main vector of the phytoplasma that causes Lethal Yellowing of coconut, a disease that has become a barrier to the establishment of large coconut plantations in the world, causing high mortality rates for plants. The objective of this study was to determine the pattern of spatial distribution and population dynamics of H. crudus adults, correlating them with climatic factors, such as temperature and precipitation in commercial green dwarf coconut trees. to evaluate how these climatic factors influence the population dynamics of this insect vector. The spittle collection was carried out with yellow adhesive traps fixed to the abaxial part of the lower leaves (less than 1.5 m) of the soil. The plants sampled in the experiment were georeferenced with the purpose of obtaining their geographic coordinates for the geostatistical analysis, besides having carried out the planialtimetric survey of the experimental plot for the preparation of a map that shows the topographic conformation of the terrain. The insects were present at the study site throughout the year, showing greater abundance in months than the average monthly temperatures showed a small rise and the amount of rainfall is reduced. Climatic factors, temperature and precipitation, showed a strong correlation with the total number of insects. The spatial distribution of H. crudus presents an aggregate pattern, explained by the spherical model. The outbreaks of infestation occur in the periphery of the plot, which is in the vicinity of pasture area with presence of B. humidícola, presenting towers with radius ranging from 154 and 190 m, with areas of influence between 7.45 and 17.80 ha, which coincide with the lower part of the terrain.

 

MEMBROS DA BANCA:
Externo ao Programa - 2494920 - ANTONIA BENEDITA DA SILVA BRONZE
Externo ao Programa - 1974748 - IVAN CARLOS FERNANDES MARTINS
Externo ao Programa - 453.879.744-87 - PAULO MANOEL PONTES LINS - NENHUMA
Interno - 3266519 - TELMA FATIMA VIEIRA BATISTA