Saturday, May 27, 2017

Lacebarks do the trick

Silk cover over the Puriri Moth Caterpillar hole
Mangaiti Gully Restoration Trust is an innovative, progressive Trust that is pushing conventional boundaries in urban restoration.  This means enhancing the environment within the gully system to take the negative pressure off the native fauna (birds, invertebrates, reptiles and fish) which urbanisation invariable brings.

Selective and targeted planting is one way to achieve this. An example is the Puriri Moth. An impressive native moth that is the largest native in NZ with a wing span of 150mm. Their caterpillar bore into the trunks of Grey Willow and Privet when native species are absent. If these are removed during weed clearing our native moth is also removed. To manage this, extensive planting of a native substitutes like Lace Bark is being done. This winter 62 Lace barks that we grew from seed have been planted in the latest cleared area. These grow relatively fast giving good early canopy cover which helps to shade out sun loving weeds.

Adult Puriri Moth

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