Bulbil Watsonia control

New shoots are appearing throughout manuka canopy and its light-invaded margins bordering mown grass.
https://inaturalist.nz/observations/27897208

This follows some months - during summer/autumn drought - with no evidence of Watsonia 9-12 months following suppression by manual removal or mulching of all leaves, which were present throughout the Annexe and the manuka Canopy below Annexe and Apron, eg MAy 31, 2018
https://inaturalist.nz/observations/18830171

This area, c.20x20m, is of dense manuka, (becoming manuka/kanuka at the Northern end ie older regen) with light breaks throughout the mature manuka canopy.

Watsonia will be suppressed ongoing by leaf-removal or mulching where native seedlings, sporelings, juveniles or mosses exist, and elsewhere as convenient, but eradication is likely to depend on increasing shade through densification of the revegetation throughout the now c. 50m margin of manuka canopy in this restoration site with dense long-standing Bulbil Watsonia infestation, some of this area not having been included in Gahnia Grove till now, and having had only occasional ad hoc intervention on Aristea and Watsonia while suppressing numerous small pampas and a few shrub/tree weeds.

Posted on July 12, 2019 09:33 PM by kaipatiki_naturewatch