Abstract
The objective of this study was to identify termite species associated with the degradation of five forest tree species. A study on the durability of this material was accomplished with five important plant species in the Brazilian forest sector. Tectona grandis, Azadirachta indica, Inga sp., Trattinnickia rhoifolia, Bagassa guianensis species were evaluated for 18 months to measure wood deterioration degree according to the attack of termites in their aerial and underground parts. Data collection was performed according to the aerial and underground parts; wherein for the first, evaluations were carried out every four months, while the second was assessed every six months. Regarding the aerial part, A. indica and T. rhoifolia species presented lower and higher susceptibility to termite attack, respectively. On the other hand, concerning the underground part, A. indica and T. rhoifolia species presented higher and lower natural durability, respectively.
Highlights
The objective of this study was to identify termite species associated with the degradation of five forest tree species
A study on the durability of this material was accomplished with five important plant species in the Brazilian forest sector
Azadirachta indica, Inga sp., Trattinnickia rhoifolia, Bagassa guianensis species were evaluated for 18 months to measure wood deterioration degree according to the attack of termites in their aerial and underground parts
Summary
A durabilidade natural é um dos fatores que pode limitar o uso de diversas espécies de madeira em vários segmentos. Após a instalação do campo de apodrecimento, procedeu-se, em intervalos de quatro meses, a uma avaliação visual da parte aérea das toras quanto ao nível de deterioração das madeiras. Em intervalos de seis meses, procedeu-se a uma avaliação visual quanto ao nível de deterioração das toras da parte subterrânea da madeira em contato com o solo, em função do ataque dos insetos. Para a obtenção do nível de deterioração das madeiras, em função do ataque dos térmitas na parte aérea das toras, foi realizada uma avaliação de. A avaliação da durabilidade natural da madeira procedeu-se por meio de análise visual da parte subterrânea das toras em contato com o solo, ao adotar o índice de deterioração proposto por Lepage (1970), o qual recomenda tal avaliação pelo critério subjetivo de notas. As médias referentes à avaliação da durabilidade natural da madeira foram comparadas pelo teste LSD de Fisher com p
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