Judee, if you can post photos of your trees, we can assist you. Also, we need to know a whole lot more about how you care for your trees: how do your water, where do you water, how much/how frequently do you water, do you fertilize? If so with what and how often? How much sun do your trees receive during the day, and what kind of soil do you have (loam, sand, DG, clay?) You say your lime tree has scale, have you treated and if so, is the scale gone? We need as much information as possible. Otherwise, it's just a guessing game for us :-)

Patty S.