Notice of Agrichemical Application

September 11, 2020


Waikato RiverCare advises that herbicide spraying of alligator weed, yellow flag iris and other Regional Pest Management Plan pest plants inclusive of restoration weeds Tradescantia fluminensis, Hypericum androsaemum, Convolvulus arvensis, Pennisetum clandestinum, Solanum pseudocapsicum, Cortaderia selloana may be carried out over a seven month period from October 2020 at the following locations:


• Waikato River margins between Ngaruawahia Township and Meremere Village

• Mangawara Stream margins between McConnell Rd and Rutherfurd Rd

• Lake Waikare WMR

• Lake Whangape WMR

• Te Onetea Stream margins

• Wai O Te Atua Stream margins

• Tuhikaramea Stream margins

• Mangapiko Stream margins

• Mangauika Stream margins


Spraying is weather dependent with project application occurring over several days.


The herbicides to be used include metsulfuron-methyl (such as Escort or equivalent), triclopyr (such as Grazon or equivalent), haloxyfop-P (Crest 520), and glyphosate (Nufarm Weedmaster G360 or equivalent).


Herbicides will be applied using either 4x4 vehicle mounted with spray equipment or on foot with



Spraying will be carried out during daylight hours on any day of the week except public holidays.

For more project specific information, please call RiverCare's Operations Manager, Kevin Hutchinson, on 027 601 6446 or email us at

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