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Inaugural Creek Crawl - Ithaca Intact

Main results

  • Carwoola Street planting downstream in pretty good shape for 30m, good canopy in parts, understorey needs work, best to start here
  • The dry hillside infested with Tradescanta zebrina and Callisia fragrans
  • Quite a lot of the nasty Black-eyed Suzie
  • Further downstream some excellent species but massive invasion of Celtis, Camphor Laurel and an alarming increase of Leucaena
  • Some uncommon dry rainforest species still in remnants, very pleasing to see
  • Kiwanis site in very good shape, Camphors need to be removed
  • The stream bed itself very compromised by Ruellia and similar shade lovers, needs work
  • A masssive infestation of a new BIGNONIACEAE downstream from Kiwanis (see pic below)
  • Cane grass dense for about 100m downstream from the Kiwanis site
  • Too much nutrient in the creek downstream from Kiwanis, amazing "steroidal" weed growth
  • From Scott Rimington's site down to Bardon State School there are lots of good sections of reserve, but Cat's Claw, Ochna plague proportions
  • A frightening infestation of Justicia (Shrimp Plant) behind the Bardon School and a few new naturalisations including Sisal
  • Groundsel on a Council Reserve!
Ithaca Intact
One of the worst sections - the nutrient rich stretch just upstream from Scott Rimington's site

A treasure not far from the city

The launch of the Ithaca Intact project at 9.30am Saturday 3 March was the occasion of our first mapping, surveying botanising and prioritising walk downstream from the headwaters of Ithaca Creek. This took us from Carwoola Street to Simpsons Road.

Ithaca Intact
Sections of the creek near Carwoola street are nearly pristine

Robert Dunne and Adam Richardt


I
To boldly go...

Infestation of a new Bignoniaceae


BIGNONIACEAE

Leucaena about to become a weed disaster zone


Leucaena

Sisal in large quantities, spreading by seed as well as runners


Fucrea

A giant weedy grass

Grass

Madeira smothering a native Hibiscus


madeira

Groundsel!


Groundsel

Tradescanta Zebrina - it was all over the dry hillsides


Tradescanta zebrina

It's not all bad - the wonderful Vitex lignum-vitae


Premna

A massive weed - Camphor laurel at the Kiwanis site


Ithaca Intact

Creek health poor - too much nutrient


Ithaca Intact

Backyard bamboo - not a serious invader


Ithaca Intact
Gradual control is the best method for these monsters

Rock Pools near Bardon State School


Ithaca Intact

Our botanist nearly swallowed by a Shrimp Plant infestation (Justicia betonica)


Ithaca Intact

Robert and Adam nearing the end of our first Creek Crawl


Ithaca Intact

Photos: Melinda Mclean and Robert Whyte