These statistics show counts of old man's beard sites that have been reported via iNaturalist.
Each October, we reset the status of sites that have been controlled recently and the %age controlled drops until the sites are revisited.
Up to date figures are shown on our dashboard (embedded below).
The map is showing all old man's beard observations on iNaturalist.
We use the observation fields on the Weed Management Aotearoa NZ project on iNaturalist to determine whether the OMB is controlled. We'd love to get more reports of OMB being controlled.
See how to update the status of OMB sites.
The data is synchronised hourly from iNaturalist.
Since the seed bank is viable for 10 years, we reset the status of controlled patches to "Purple - please check" each October so that they are checked for new growth.