My Sweet Jane hybrid camellia seems to be very sick. During the flowering time, it had a mass of buds. Some came out but a lot turned brown and fell off. The leaves are brown halfway from the tip. A lot of these have ultimately fell off. There are some new shoots now but something is eating them. There seems to be a very fine spider web on the plant. Now some of the new shoots are curling at the ends and seem to be also turning brown at the ends. I would love to save this plant. Please help.