Join Griffith Mates for the Ochna Blitz Challenge!

Saturday 24 September 8am to 11am

Map

2016 National Tree Day planting

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Location: Junction of Geebung and Federation Tracks (behind green water reservoir)

We will do a walk through the National Tree Day planting and some light weeding then move onto the Mickey Mouse Plant Ochna serrulata.

The planting site is looking great with trees and vines planted in 2015 now flowering and producing seed. A Sickle Leaved Wattle Acacia falcata is already hosting caterpillars of the Imperial Hairstreak Jalmenus evagoras butterfly.

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The caterpillar is protected by “Kropotkin” ants – Small Meat Ant Iridomyrmex sp. The ants provide protection in return for sugary fluids secreted by caterpillar. Imperial Hairstreaks will only return to breed where both caterpillar food plants and the ants are present.
Kropotkin is a reference to Russian biologist Peter Kropotkin who proposed a concept of evolution based on “mutual aid” between species helping species from ants to higher mammals survive.

The combination of rain and clearing Creeping Lantana Lantana montevidensis means the Ochna is thriving and it is covered in flowers and seeds. However, the rain also means must easier to pull our either by hand or Treepopper.

 

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