“Infections in the leaves typically result in a brown lesion on the upper side, and yellow spore masses called pustules, on the underside of the leaf. These can coalesce across the whole leaf and kill the leaf and eventually the whole shoot, Perfetto said.
“The fungus also attacks flowers and develops fruits which kill them, rendering the plant infertile,” she added.
“New foliage is most susceptible, so when the tree is actively growing and especially if the plant might be putting out a new flush of growth after events like bushfires, a whole tree can be affected as well.”
Tune into the full episode of The Science Briefing below…
Introducing The Science Briefing: a podcast about the science of everything and your new go-to podcast for your snapshot of science news. Hosted by Dr Sophie Calabretto and featuring journalists from Cosmos Magazine. Hear The Science Briefing on the LiSTNR app now.