Last week during the height of the deluge, I had a look at the light and the tree adjacent to it, a Quandong, Elaeocarpus sp., was actually spewing foam from a number of fissures. It was oozing out and dripping down the side of the tree.
If anyone has an explanation for the above, please leave a comment. I'm mystified. I suspect it is an insect, perhaps a bug of some sort, but it just does not ring true.