Hello everyone. This appeared to be a great website to get some really helpful information. I need some right now. I have a lemon tree, indoor, which has been beaautiful, but is now having some problems. There are these little brown mounds (bugs) stuck to the top side of the leaves, pretty much on the vein that extends down the middle. Also, the plant seems to be getting sappy, and sticky on the leaves as well. I have washed every leave off with water and would like to know if anyone has any other remedies. I have been unable to identify what type of bug it is. Thanks for the help.......