Research was conducted to evaluate the potential of using remote sensing technology to assess feeding damage on the invasive woody plant species, saltcedar, Tamarix ramosissima Ledeb., by a leaf beetle, Diorhabda elongata (Brulle). Field reflectance measurements showed that saltcedar plants exhibiting feeding damage had lower visible green reflectance than healthy plants, and could be distinguished from healthy plants on conventional color aerial photographs. Accuracy assessments performed on supervised classification maps of aerial photographs from two years showed that damaged and healthy saltcedar plants had producer and user accuracies ranging from 88% to 100%.