I have two 6 yr old lemon trees (same pot) that I planted from seed. I always have trouble with their leaves falling off in the winter but I feel that its doing worse than usual this year. Its has a serious insect issue as well. It makes tiny webs all over the plant but also makes the leaves (and the ground around the plant) very sticky. Im considering a lamp to help it get some light in the winter. Does anyone have any insight on that decision or any ideas on what kinda bug is harassing the tree?