I am giving the ailing trees a good powerful leaf wash with the hose sprayer every day from underneath hoping to flush out whatever these bugs are. I can't see anything on the leaves. There is no webbing, no bugs, no droppings. Nothing! I am losing leaves daily off my Pink Piduca. And then there is the leaf curl and discoloration. I spray the soap on at night so it can sit there out of the sunlight doing its killing job. Any ideas for me before this spreads further??