I have had the attached plant for nearly eight years now and I adore it. However each year it gets what I think is the dreaded woolly aphid and as the plant is now so big with various branches I risk damaging it (even if I could move it) if I try to take it outside to hose it. There are so many nooks and crannies where the white gunge just embeds itself. Is there anything I can do? It really is beautiful and has grown into its corner perfectly but I hate to see it infested like this.