Skip to Main Content
Efficacy of commercial microwave equipment for eradication of pine wood nematodes and cerambycid larvae infesting red pineAuthor(s): Mary R. Fleming; John J. Janowiak; Jeffrey D. Kimmel; John M. Halbrendt; Leah S. Bauer; Kelli Hoover
Source: Forest Products Journal. 55(12): 226-232.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (175.64 KB)
DescriptionThe feasibility of using commercial 2.45-GHz microwave equipment to kill cerambycid larvae and pinewood nematodes(PWN) [Bursaphelenchus xylophilus (Steiner and Buhrer) Nickle] infesting lumber was investigated. Research goals were to test a system of separating green material into moisture content(MC)ranges and to determine the feasibility of using internal wood temperature as the critical lethal treatment parameter. Prior research suggested that MC is a critical factor to consider in scaling up from laboratory-scale experiments with small volume specimens to full-sized lumber using commercial treatment processes. Commercial units used for this study were a chamber design unit for batch irradiation treatment and a continuous conveying tunnel design of microwave equipment fitted with optional air heaters. Because red pine is a preferred host of PWN and has high wood MC, microwave irradiation trials were conducted with red pine directly obtained from freshly sawn logs. The trials conducted using batch irradiation resulted in 100-percent mortality in all treated red pine materials (4- by 4- by 20-in cant samples) infested with PWN or beetle larvae above a measured wood temperature of 62°C, regardless of wood MC. In contrast, treatment of 1-inch-thick boards using continuous feed microwave irradiation achieved 100-percent morality at lower wood temperatures. These results were encouraging and indicate commercial microwave (2.45GHz) treatment may be a feasible alternative to conventional heat treatment or methyl bromide fumigation.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationFleming, Mary R.; Janowiak, John J.; Kimmel, Jeffrey D.; Halbrendt, John M.; Bauer, Leah S.; Miller, Deborah L.; Hoover, Kelli. 2005. Efficacy of commercial microwave equipment for eradication of pine wood nematodes and cerambycid larvae infesting red pine. Forest Products Journal. 55(12): 226-232.
- Parameters for scale-up of lethal microwave treatment to eradicate cerambycid larvae infesting solid wood packing materials
- Effect of treatment pressure on treatment quality and bending properties of red pine lumber
- Specific gravity relationships in plantation-grown red pine
XML: View XML