Injúrias e oviposição de Oncideres impluviata (Germar) (Col.: Cerambycidae) em Piptadenia gonoacantha (Mart.) Macbr.

Beetles from genus Oncideres, known as twig girdler, have the habit of girdle branches of healthy trees, where they lay their eggs, to establish an appropriate environment to the development of the larvae. This study had the objective of characterize the injuries caused by O. impluviata in Piptadenia gonoacantha, quantify and position the eggs incisions in trees of this forest specie. The results showed that 63.16% of girdled branches were located on the upper third of the trees, with average girdle height above ground of 2.76±0.14 m. The average diameter and height of girdled branches were 1.32±0.04 cm and 1.18±0.03 m, respectively. The average number of incisions per branch was 5.9±1.24, which were located at higher frequency on the lower third of girdled branch. Can be concluded that the twig girdle beetle O. impluviata girdle mostly lateral branches located at the upper third of the tree and lay their eggs mostly on the lower third of the girdled branch, decreasing as advance to the upper third of the twig. [ABSTRACT FROM AUTHOR]