Resistência natural de madeiras da amazônia ao ataque cupins (Nasutitermes corniger) em ensaio de preferência alimentar.

Abstract

The woods used in structures in Brazilian Northeast Region are from of Amazon Region. The present work aimed evaluates the natural resistance of seven woods of Amazonian to subterranean termites under alimentary preference assay. The studied woods were Myroxylon balsamum, Simarouba amara, Lantana camera, Guarea sp., Amburana acreana, Micrandropsis scloroxylon and Ceiba pentandra. Test samples measuring 10.16 x 2.00 x 0.64 cm, with larger dimension in the fiber direction were obtained. The woods were submitted to Nasutitermes corniger action by 45 days. The M. balsamum presented larger resistance and the C. pentandra the least one, having been completely consumed by termites. There was not significant relationship between density and the mass loss to studied species.