To assess the defoliation throughout the canopy, it is helpful to hold up plants for a full view. Two plants were measured for percent defoliation using a free app, LeafByte, but it takes some time to do. One plant measured 10.7% and the other 15.8% total defoliation. Rule of thumb, the damage always looks worse than what it really is. Notice how most damage is in the upper canopy. (Photo Credit: John Obermeyer)