Dissertação
Influência do Oncideres impluviata (Germar, 1824) na produtividade de Acacia mearnsii (De Wild) no Rio Grande do Sul, Brasil
Fecha
2023-03-03Autor
Badin, Tiago Luis
Institución
Resumen
This work aims to evaluate the influence on productivity caused by Oncideres impluviata
in Acacia mearnsii. For the evaluation, data from four black wattle management units in
the municipality of Encruzilhada do Sul, RS, were used. The data obtained, via forest
inventory, were used to calculate the total volume and commercial volume obtained by
the non-linearized Spurr and non-linearized Schumacher-Hall models, the volumetric
distributions of the data year by year were also tested and submitted to the Kruskal test -
Wallis. The results obtained showed that trees attacked on lateral branches have the same
volume as non-attacked trees, however, they differ only in terms of the type of attack, if
this is on the apical bud, which occurs at two years old, has long-term alteration in
commercial volume, accumulating losses directly attributed to the insect ranging from
48.42% to 83.5% depending on the level of attack. It was concluded that the insect is
indeed one of the causes of volume reduction, especially when the apical attack occurs at two years of age.