Here is an example of what the damage my look like. 

As a landscape healthcare and pest control company we have been noticing Giant White Fly popping up around us lately.
Giant White Flies target some ornamental plants including begonia, hibiscus, giant bird of paradise, and Xylosma. Not only that but some fruit trees may also be affected including citrus, avocado, mulberry and banana. While the hairs can float around and be a nuisance, generally the white flies damage and weaken a plant but do not kill the plant. Remember, insecticides should only be used for control if there are no beneficials in the area that can take of the problem naturally.  You can find more info Here.