Termites and Standard Norms in Wood Protection: A Proposal Targeting Drywood Termites

Maistrello, Lara

doi:10.1007/978-3-319-68726-1_12

Cited by 12 publications

(6 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Changes in the chemical composition of the wood may include the production of new free molecules that can act as insecticides and fungicides, as well as cause changes in the lignin cross-linking. The present results confirmed that the wood durability increased as the heat treatment temperature increased (Maistrello 2018).…”

Section: Resultssupporting

confidence: 88%

See 1 more Smart Citation

Resistance of in natura and torrefied eucalyptus wood to Cryptotermes brevis (Isoptera)

Castro

Freitas

Zanuncio

et al. 2019

BioRes

View full text Add to dashboard Cite

The shorter natural durability and low energy density of eucalyptus wood hampers its use in generating energy. Torrefaction or pre-carbonization, which is treatment in low oxygen with temperatures between 200 °C and 300 °C, accumulates carbon and lignin, decreases the hygroscopicity, increases the energy efficiency, and reduces the attractiveness of wood to xylophagous organisms, such as termites. The objective of this study was to evaluate the resistance of fresh and torrefied Eucalyptus urophylla (20 min at temperatures of 180 °C, 220 °C, and 260 °C) to dry wood termites (Cryptotermes brevis), following IPT standards. The torrefaction process increased the resistance to dry wood termite attack after 45 d of exposure, with mass losses five times greater in the in natura wood compared with the wood torrefied at 260 °C. The larger visual damage to the in natura chips confirmed its lower resistance to dry wood termites. Torrefaction at 260 °C increased the resistance to dry wood termites and was more efficient with a lower mass loss and wear, and caused a greater mortality of dry wood termites.

show abstract

Section: Resultssupporting

confidence: 88%

“…Cryptotermes brevis is the most common wood termite species and one of the most researched because it is easily disseminated with small, almost imperceptible colonies that can be transported in furniture and wood pieces (Gonçalves and Oliveira 2006;Maistrello 2018). Dry wood termites prefer woods with sapwood, which is more nutritious.…”

Section: Introductionmentioning

confidence: 99%

Resistance of in natura and torrefied eucalyptus wood to Cryptotermes brevis (Isoptera)

Castro

Freitas

Zanuncio

et al. 2019

BioRes

View full text Add to dashboard Cite

show abstract

“…Wood damage was recorded in all treatments, indicating that torrefaction did not fully protect the wood. The attack degree decreased with increasing temperature with lower mass losses in torrefaction [17][18][19][20]. The microorganisms quantity in the termite intestine may become insufficient to digest cellulose, influencing the eating habits of these insects, which could lead to their death [21].…”

Section: Resultsmentioning

confidence: 99%

Resistance of the Eucalyptus Wood in Natura and Torrefied Exposed to the Attack of Cryptotermes brevis

Castro¹,

Pereira²,

Surdi³

et al. 2018

JAST-B

View full text Add to dashboard Cite

The reduced natural durability and low energy density of eucalyptus wood hampers its use to generate energy. Torrefaction or pre-carbonization, treatment in low oxygenation with temperatures between 200 °C and 300 °C, accumulates carbon and lignin, decreases hygroscopicity, increases energy efficiency and reduces the wood attractiveness to xylophagous organisms, such as termites. Therefore, this work had as its main aim to study the influence of the roasting temperature on the endurance of the Eucalyptus urophylla wood in natura as well as roasted, both exposed to the attack of dry-wood termites. To the execution of this study, in natura wood chips and torrefied chips (torrefied for 20 min at the following temperatures: 180, 220 and 260 °C) were submitted to the dry-wood termite resistance test. In this experiment, termites of the Cryptotermes brevis species were used. After 45 d of exposure, it was possible to observe that the torrefied treatment presented a greater resistance that consequently increased the endurance when exposed to the termite's attack, observing that the control sample, loss five times more than mass than the chips torrefied at 260 °C. Besides, in the treatment with in natura chips, was observed less mortality of the termites and greater visual damage, confirming the lower durability of such material compared to torrefied chips.

show abstract

“…A non-choice feeding test with dry-wood termites, Cryptotermes brevis Walker, was performed according to the method of Instituto de Pesquisas Tecnológicas de São Paulo IPT/DIMAD-D2 (1980), which is similar to that described by Maistrello (2018). Ten specimens of gamhar (Gmelina arborea Roxb.)…”

Section: Non-choice Dry Wood Termite Feeding Testmentioning

confidence: 99%

“…Thus, there is no single characteristic that relates to the attack caused by termites, but rather a set of factors, such as age, position on the trunk, genetic and environmental attributes (Gonçalves et al 2013). Another factor to be analyzed is the stress to which termites are subjected during the test, proposed by IPT/DIMAD D 2 (1980) and Maistrello (2018), in which they are exposed to the environment, while, in their attack on furniture, are protected by their galleries. To alleviate this stress and create a better environment during the test, Medeiros (2021) proposed that the test be mounted on trays and the samples placed one on top of the other.…”

Section: Resistance Against Dry-wood Termitesmentioning

confidence: 99%

Biological resistance of thermally modified Gmelina arborea wood

Minkah,

Afrifah,

Antwi-Boasiako

et al. 2024

Maderas-Cienc Tecnol

View full text Add to dashboard Cite

Thermal modification of wood is an environmentally friendly method to improve wood durability, mainly against microorganisms. By employing a process similar to the ThermoWood®, various Gmelina arborea (gamhar) wood specimens were thermally modified at 180 °C, 200 °C, and 220 °C for 3 hours. The effects of the thermal modification process on the resistance to decay by rot-fungi, and attack by subterranean, arboreal, and dry-wood termites were determined. Generally, the thermal modification improved the resistance of Gmelina arborea (gamhar) to decay by Trametes versicolor with increasing process temperature. However, the effect of the process was null on the resistance to biodeterioration by the brown-rot fungus Coniophora puteana and the dry-wood termites Cryptotermes brevis. Even so, the visual damage caused by Cryptotermes brevis was slight. Untreated and thermally modified woods recorded higher resistance to Coniophora puteana than Trametes versicolor. Mass loss caused by Nasutitermes corniger also decreased with increasing thermal modification temperature. According to the visual damage rating values, the attack by Nasutitermes corniger was slight. However, the thermal modification inversely impacted Gmelina arborea (gamhar) attack by Macrotermes sp., as its resistance in the field to the termites decreased with increasing modification temperature. Thus, the thermal modification process contributed to improving the decay resistance of the modified wood to white-rot fungus Trametes versicolor and attack by the arboreal termites Nasutitermes corniger exposed indoors. On the other hand, thermally modified Gmelina arborea (gamhar) wood was very susceptible to Macrotermes sp. in the field. This work would provide a reliable reference document to guide wood industry stakeholders in assessing the performance of untreated and thermally modified Gmelina arborea (gamhar) wood in situations exposed to fungi and termite species adopted.

show abstract

Termites and Standard Norms in Wood Protection: A Proposal Targeting Drywood Termites

Cited by 12 publications

References 40 publications

Resistance of in natura and torrefied eucalyptus wood to Cryptotermes brevis (Isoptera)

Resistance of in natura and torrefied eucalyptus wood to Cryptotermes brevis (Isoptera)

Resistance of the Eucalyptus Wood in Natura and Torrefied Exposed to the Attack of Cryptotermes brevis

Biological resistance of thermally modified Gmelina arborea wood

Contact Info

Product

Resources

About