Quantifying the thermal tolerance of wood borers and bark beetles for the development of Joule heating as a novel phytosanitary treatment of pine logs

Pawson, Stephen M.; Bader, Martin K.‐F.; Brockerhoff, Eckehard G.; Heffernan, Bill; Kerr, Jessica L.; O’Connor, Brooke C

doi:10.1007/s10340-018-1015-8

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…With the E. nitens log a six excitation regime is chosen with longer relaxation periods. This is for two reasons: Firstly the heating has been found to be generally less even in E. nitens, requiring more time for hot and cold spots to equilibrate; secondly the aim is to penetrate the heat deeper into the log for the peeling application, as all parts of the wood need to be heated [4,5], whereas in the phytosanitary application the penetration depth can be more limited [1]. Note further that, even when cold, both logs had a resistance less than 1kΩ, such that only the parallel HV winding configuration was needed.…”

Section: Resultsmentioning

confidence: 99%

“…In 2007 the suggestion was made by Grant Knight, a biosecurity expert with the NZ Ministry of Agriculture and Forestry (now Ministry of Primary Industries) that Joule heating might be worth investigating as a heattreatment alternative to the methyl bromide fumigation process currently employed in NZ for phytosanitary treatment of a significant proportion of export logs. (The main purpose of such treatments is the destruction of all life stages of certain species of bark and ambrosia beetles [1]). A replacement technology was needed as compliance with the Montreal Protocol was leading to tightening restrictions on the release of methyl bromide to atmosphere, due to its ozone depleting properties.…”

Section: Introductionmentioning

confidence: 99%

“…Since real logs are heterogeneous, with features such as knots, bark inclusions and resin pockets, a regime of 100kW constant power "excitation" periods followed by temperature equilibrating "relaxation" periods [11] was developed, capable of ensuring all measured "cold" spots in the initial 32 test logs exceeded the ISPM-15 minimum of 56 o C [1]. There are many aspects involved in this implementation of the Joule heating process that cannot be covered in a single paper.…”

Section: Introductionmentioning

confidence: 99%

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Joule heating of logs for phytosanitary purposes and timber processing pre-treatment

Heffernan¹,

Nursultanov²,

Herel³

et al. 2018

Adv. Mater. Lett.

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Joule heating has recently been investigated as a potential alternative to chemical fumigation for phytosanitary treatment of Pinus radiata logs exported from New Zealand. The research was driven by concern regarding the effects of methyl bromide release to atmosphere, following fumigation, as highlighted by the Montreal Protocol. The work has involved creating 1 dimensional and 3 dimensional computer models of the Joule heating process in P. radiata, building a laboratory-scale log test rig with suitable instrumentation and control systems, heating approximately 60 P. radiata logs and using the measured data to refine and validate the models. While engaged in this work it became clear that the process could also potentially be applied to heat veneer peeler logs. This paper describes the application of the 1 dimensional model and laboratory-scale test rig to a typical P. radiata export log and to a Eucalyptus nitens log prepared for veneer peeling. The results demonstrate that, despite the heterogeneities of the timber, the technique is capable of achieving the required temperature profiles for both applications and that the model is a sufficiently good representation of the process to provide a viable control method.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Joule heating of logs for phytosanitary purposes and timber processing pre-treatment

Heffernan¹,

Nursultanov²,

Herel³

et al. 2018

Adv. Mater. Lett.

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“…The process was not cost efficient, because this change happened way before the lifetime of HPS lamps and the total luminous flux of the installed LEDs were higher than that of the former lamps causing increased light pollution worldwide. [10] pointed out that the usage of white LEDs has a bigger ecological impact compared to HPS lamps irrespective of the colour temperature. They used light traps with white LEDs and HPS lamps to capture phototactic insects.…”

Section: Introductionmentioning

confidence: 99%

Living Environmental Laboratory for Lighting: Reduction of Light Pollution at Hungarian Settlements

Száz¹,

Kollath²,

Szabó³

et al. 2020

IJSL

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The International Dark Sky Association has a flight of rules for public lighting in dark sky parks. In Hungary, many settlements still illuminate with compact fluorescent lights and sodium lamps, that do not fulfill these rules. In our research project, financed by a grant of the European Union, we established a system of Living Environmental Laboratory for Lighting at two settlements in dark sky parks in Hungary. As the first step, the public lighting system was reconstructed, so that it satisfied the rules of IDA. We designed new LED luminaires with optimal illumination and optical properties to provide the necessary luminous intensity and reduce light pollution at the same time. The new system has a two-step illumination profile: (i) Early night, after sunset, when the traffic is still high, warm white LEDs are applied to ensure sufficient lighting coming to the roads and pavements with a wide beam of light. (ii) Late night, when the traffic is low, the illumination switches to amber LEDs that have a narrower light beam to minimize light pollution and provide sufficient visibility. This approach can be an optimal illumination construction to reduce the light pollution of public lighting at night.

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“…Several reviews focus on the management of particular invasive insect pests of urban and forest tree species (e.g., Avtzis et al 2018;Corley et al 2018;Hérard and Maspero 2018;Kirichenko et al 2018;Milosavljević et al 2018). The special issue also contains sixteen original papers and a rapid communication that advance our knowledge of phytosanitary treatments (Pawson et al 2018), ways invasive species spread in new habitats (Javal et al 2017;Lesieur et al 2018;Lo et al 2018), and improved tools and strategies for their early detection (e.g., Fan et al 2018;Rassati et al 2018) and management (e.g., Ferracini et al 2018).…”

mentioning

confidence: 99%

Special issue on invasive pests of forests and urban trees: pathways, early detection, and management

et al. 2019

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Quantifying the thermal tolerance of wood borers and bark beetles for the development of Joule heating as a novel phytosanitary treatment of pine logs

Cited by 18 publications

References 22 publications

Joule heating of logs for phytosanitary purposes and timber processing pre-treatment

Joule heating of logs for phytosanitary purposes and timber processing pre-treatment

Living Environmental Laboratory for Lighting: Reduction of Light Pollution at Hungarian Settlements

Special issue on invasive pests of forests and urban trees: pathways, early detection, and management

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