rberesford's Identifications

Young manuka seedlings - 3 varieties - under 50cm tall - approx 6-9month old - i think stems show presence of myrtle rust but would like confirmation.
Older 4m tall Pohutakawa near by dont appear to be effected.

Found following a period of humidity.

We have a row of tall Lilly Pillys which we recently cut down - some to the ground - some to 3m.
The worst Myrtle rust seems to be in the new growth shooting from the stumps. There is also some higher up in the trees that are still 3m high.

Our property joins a reserve of native bush. Very disappointed in ourselves that we have probably encouraged this disease by cutting the awful trees down in summer.

Severe infestation - one of the worst I have ever seen on this host species. Two planted tree's growing on margin of spring; these 5-6 tall. All young growth and especially floral primordia and maturing inflorescences covered in urediniospores.

Bees (Apis mellifera) noted harvesting spores - see https://inaturalist.nz/observations/68580488.

These tree's I have been watching monthly since September 2017. I last checked them on 1 January 2021 (not Austropuccinia was evident then). This infestation was reported to me by Wendy John who noted it on 23 January 2021 - see https://inaturalist.nz/observations/68482642