Spraying programme: November 2018 - February 2019

The spraying programme is weather dependent and can change at short notice. Our contractors will notify you ahead of time if your property is affected by these works.

River to be Sprayed Reaches Purpose Estimated Timing


Waimea - from just upstream or Lower Queen Street to the confluence with the Wai-iti River.

Wairoa - from the Wai-iti confluence to a few hundred metres downstream of the Waimea East Irrigation Weir.

Control of woody weeds on growing in the active channel, plus some areas of bermland woody weeds.

November/December 2018


Belgrove to Brightwater

Control of pest vines growing on banks especially chocolate vine

January/February 2019 (TBC)

All spraying is intended to be ground based, mostly with a gun sprayer rather than a boom. The herbicides used include glyphosate, metsulfuron-methyl and triclopyr-BEE.

We may also undertake cutting and pasting for pest vines.