I have fought a long battle to save a JBP that has deteriorated to the point of near death. Found this critter on it last night, and found some more on a Xanthorrhoea. I have a garden sapling Gum that is being eaten from both inside and outside the wood that I suspect is the origin. Any clues at to what this is.
Abstract - The long-term management of a population of Australian cockroaches, Periplaneta australasiae, causing
serious damage to valuable plant species in a United Kingdom tropical plant house,
their is a few hits when looking for Periplaneta australasiae and plant damage cockroaches are also known to bite humans in their sleep mostly on fingers and hands were food residue is i wouldnt discount them yet mate
Can ship a few downif you like, we have millions of them in Sydney,but I cannot say I have lost any trees with them,curl grubs are another story. I personally would look for another reason, but I stand to be corrected,as I learn something every day.