Tiny orange psyllid nymph on a gum leaf. Wilston, Qld.
Jumping plant lice nymphs hiding among the tiny hairs on a gum leaf. The largest nymph has a rather large drop of honeydew ready for collection. Kyogle, NSW.
Psyllids suck sap out of a leaf and produce honeydew which is collected by ants. When psyllids are present in large numbers, sooty mould will often take over the leaf and is detrimental to the health of the tree. Kyogle, NSW.
