1. Department of Environmental Conservation; University of Massachusetts; 160 Holdsworth Way, Amherst MA 01003 USA
2. Centre for Urban Greenery and Ecology; National Parks Board; Singapore 259569 Singapore
3. Plant Pathology and Integrated Pest Management Section; Plant Health Diagnostics Division; Agri-Food and Veterinary Authority; Singapore Singapore
4. Applied Wood Materials; Empa Swiss Federal Laboratories for Science and Technology; St. Gallen Switzerland