- Dear Dr. Britton, I have what I think is a female Titan stick insect on a Camden White Gum. Problem is, the gum is only 2 metres high. I presume she has been disturbed from one of our mature Ironbarks. She seems quite happy and has been there for a couple of weeks. Should I move her as high as I can in one of the Ironbarks, or leave her where she is? Thanks, Lesley.