Detection and classification of forest damage caused by tomentosus root rot using an airborne multispectral imager (CASI)

This study represents a preliminary test of 0.6 meter multispectral imagery for detection of symptoms of tomentosus root rot at the individual tree le vel and at the stand level at a location in central British Columbia using the Compact Airborne Spectrographic Imager(CASI). This test utilized an aut omated isolation of individual conifer tree crowns followed by a tree by tr ee health classification. The preliminary results indicate that multispectr al imagery can be used to successfully detect stress at the individual tree level, but that stand density may affect results.