Vacuum technology developed to control insects in wood
Virginia Tech wood scientists hope that their vacuum-drying project will benefit wood pallet and container manufacturers and hardwood sawmill businesses across the nation.
“The vacuum controlling system eliminates the need for a heating system, saves energy, and does not release ozone-depleting chemicals into the earths atmosphere,” says Zhangjjng Chen, one the researchers working on the project at the Center for Unit Load and Design in the wood science and forest products department of Virginia Techs College of Natural Resources.
“Plant sanitary measures currently require that wood pallets and containers, which pack goods that are imported or exported, should be heat-treated or fumigated,” Chen explains. In response to these requirements, the Center for Unit Load and Design is developing the basis for vacuum control of insects in solid wood packaging materials, which would serve as an alternative to the current method of eliminating insects in wood.
Chen and his research partners project that low pressure, achieved by applying a vacuum to a system, will create an environment sufficiently low in oxygen that will eliminate the insects in several hours to days. Their research data indicates that there may be an opportunity to apply this technology to eliminate insects in wood.
The material being tested is freshly cut red oak. Larvae of the longhorn beetle, Hylotrupes bajulus, will be used for all of the evaluations and will serve as a substitute for the Asian Longhorn Beetle, Anoplophora glabripennis, because life stages are approximately the same. Experts believe the Asian Longhorn Beetle was introduced in America via infested shipping materials.
Principal investigators responsible for the vacuum control project include Virginia Techs wood science and forest products research specialist Zhangjjng Chen, professor Marshall White, and entomologist professor William H. Robinson. Chen and White work with the wood and moisture relationship that occurs in vacuum drying. Robinson has extensive knowledge on wood insects.
Researcher: Zhangjjng Chen, 540-231-7107, chengo@vt.edu
Media Contact
All latest news from the category: Life Sciences and Chemistry
Articles and reports from the Life Sciences and chemistry area deal with applied and basic research into modern biology, chemistry and human medicine.
Valuable information can be found on a range of life sciences fields including bacteriology, biochemistry, bionics, bioinformatics, biophysics, biotechnology, genetics, geobotany, human biology, marine biology, microbiology, molecular biology, cellular biology, zoology, bioinorganic chemistry, microchemistry and environmental chemistry.
Newest articles
Lighting up the future
New multidisciplinary research from the University of St Andrews could lead to more efficient televisions, computer screens and lighting. Researchers at the Organic Semiconductor Centre in the School of Physics and…
Researchers crack sugarcane’s complex genetic code
Sweet success: Scientists created a highly accurate reference genome for one of the most important modern crops and found a rare example of how genes confer disease resistance in plants….
Evolution of the most powerful ocean current on Earth
The Antarctic Circumpolar Current plays an important part in global overturning circulation, the exchange of heat and CO2 between the ocean and atmosphere, and the stability of Antarctica’s ice sheets….