ABSTRACT This work aimed to evaluate the biological resistance of Australian red cedar (Toona ciliata) and Eucalyptus woods to the Cryptotermes brevis (Kalotermitidae) dry wood termite species. The species used to evaluate natural resistance to insect attacks were Australian red cedar from 6 and 12-year-old plantations installed in the mountainous region of the Espírito Santo state, and commercial adult Eucalyptus sp. wood provided by a sawmill located in the South of Bahia state. Fitting and evaluation of the experiment followed the recommendations of the Institute for Technological Research of the State of São Paulo. The three woods differed as to their susceptibility to attack by dry wood termites when the damage caused in the samples was considered, with the most consumed species being the 12-year old Australian red cedar, while the Eucalyptus wood was less susceptible to damage.

ABSTRACT The objective of this work was to evaluate environmental effect on growth, wood basic density and anatomical characteristics of Eucalyptus grandis × Eucalyptus urophylla clones for pulp production. The studied clones were from 6.5-year-old plantations of Fibria Celulose company, located in two places: Nova Almeida (ES) and Posto da Mata (BA). The total and commercial heights, diameter at breast height (DBH), wood and bark volume (dendrometric characteristics), heartwood and sapwood percentages, wood basic density and wood fibers and vessels were evaluated. The heartwood and sapwood percentage and vessel frequency were the only characteristics not influenced by the growth site among the studied parameters. On the other hand, tree height (total and commercial) was considered the most influenced by the environment.

A pesquisa consistiu na análise da qualidade de moirões de eucalipto tratados, comercializados nos municípios de Alegre, Jerônimo Monteiro e Cachoeiro de Itapemirim, no Estado do Espírito Santo. Para sua realização, compararam-se a distribuição, a penetração e a retenção do preservante arseniato de cobre cromatado (CCA) nos moirões, com os parâmetros norteadores das Normas Brasileiras Regulamentadoras. Por meio de reações colorimétricas, foram avaliadas a distribuição e a penetração do cobre nas peças; por espectrofotometria de absorção atômica, quantificou-se a retenção dos elementos do preservativo empregado. De posse desses parâmetros, verificou-se que os moirões comercializados nos três municípios atendem à normatização quanto à distribuição do produto preservativo. No entanto, observou-se que alguns estabelecimentos não satisfazem as exigências quanto às penetrações e retenções mínimas exigidas pela normatização brasileira. Observaram-se as melhores retenções nos moirões comercializados nos municípios de Alegre e Jerônimo Monteiro.

The purpose of this research was to examine the quality of treated eucalypts fence posts marketed in the municipalities of Alegre, Jerônimo Monteiro and Cachoeiro de Itapemirim, State of Espirito Santo, Brazil. To this end, the distribution, penetration and retention of chromate copper arsenate (CCA) water borne preservative in fence posts were compared to the parameters of the Brazilian Regulatory Standard Norms. Distribution and penetration were assessed by means of colorimetric reactions,while retention of the preservative product was assessed by atomic absorption spectrophotometry. With these parameters, it was found that the fence posts marketed in the three municipalities meet the standards for the preservative product distribution. However, it was possible to notice that some commercial establishments do not meet the requirements for minimum penetration and retention required by the Brazilian standards. The best retentions were found in fence posts marketed in the municipalities of Alegre and Jerônimo Monteiro.