The Internet's Finest Tropical Fruit Discussion Forum!"All discussion content within the forum reflects the views of the individual participants and does not necessarily represent the views held by the Tropical Fruit Forum as an organization."
Looks like lobate scale - depending on the level of infestation I've seen them do serious damage to the nutrition of a tree, going so far as to kill off branches that are heavily infested. There's really no 'organic' cure to them other than hitting the tree with soapy water and then scratching them off with your fingers (if the tree is small enough). I guess you could use a systemic pesticide but I try to avoid that as they only seem to attack fruiting trees in my yard.
Thanks for the diagnosis, looks like you guys are right. Man this sucks Fortunately my trees are still at a manageable size to manually remove the scales. Let the war begin...