Report for February 2019
Hours of input - February subtotals:
Liaison 6 YTD 79.75
Community Liaison - 0 YTD -1.5
Monitoring/research - 22.75 YTD -194.75
Sitework- 5.75 YTD- 256.25
February total: 34.5 YTD Total: 532.25
(Site work includes Weed control, fire prevention, mulching for moisture retention, "tiptoe" path creation for habitat protection, onsite assessment and planning, and maintenance of amenity through optimal disposition of weed materials and mulch bordering mown kikuyu)
Total hours of manual Kikuyu margin control since establishment of narrow wood mulch strip and rope cordon in mid-January:
4.75 hrs, covering c. 40m dense mown kikuyu parallel to Glenfield Rd
(This does not include the different manual management of the kikuyu ipresent among mixed grasses, primarily Axonopus fissifolius and Paspalum dilatatum, along Gahnia Grove's East-West margin, ie down the slope beside informal foot entry to the grassed recreational area, bordering the Annexe and continuing along the manuka canopy margin)
A new weed invasion, a single sturdy stem of Swan Plant (Gomphocarpus spp.) is being monitored during full identification on iNaturalist, but believed to be Gomphocarpus physocarpus, (known in some countries as "Giant Swan plant") as that is the species prevalent in the neighbourhood. (Another species, G. fruticosus, has longer ovoid fruit/follicles with a tapered tip).
Its iNat Observation is here:
https://inaturalist.nz/observations/20939024
with discussion welcome here:
https://inaturalist.nz/projects/gahnia-grove-site-summary-and-discussion/journal/22160-a-new-weed-invasion-in-gahnia-grove
The single specimen of Nahui introduced into the ex-kikuyu margin is doing well, and expected to spread aggressively with the first rainfall. Being monitored for its interaction with shade and other native plants:
https://inaturalist.nz/projects/gahnia-grove-site-summary-and-discussion/journal/22159-nahui-introduced.
Any experiences or comments re the introduction of Nahui would be very welcome there.
No weed control was required in February, the kikuyu margin control being only for aesthetic reasons and to ensure no long grass was present in the event of a FireWatch season.
We look forward to selecting further among the plants that have arisen, looking for native seedlings and assessing the ongoing need for micro-canopy, as soon as there has been significant rain.
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