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  Services » Regional Services » Plant and animal pests » Plant pest spraying operations

Pest plant control over water

Image - alligator weedOperations under Resource Consent 124871

Waikato Regional Council holds a resource consent for the application of agrichemicals to air where they may enter water and the coastal marine area within the Waikato region. 

This consent allows the use of specific herbicides for controlling pest plants that cannot generally be controlled with glyphosate.

Resource consent details

Consent no: 124871

Consent description: Aerial application of agrichemichals to air where it may enter water and the coastal marine area within the Waikato region. 

What pest plants are we controlling?

The pest plants to be controlled in 2018-19 include, but are not limited to the list below. These plants all grow in and around aquatic or marine areas, which means the herbicides we use may enter water.

Herbicides

The resource consent permits the use of the following herbicides.

Spraying will be by knapsack, hand spray equipment (e.g. gun and hose/mist blower) or helicopter using low drift nozzles.

Active ingredient Example brand name
Haloxyfop-R-methyl Agpro Haloxyfop 100, Gallant™ Ultra
Imazapyr isopropylamnine Unimaz™ 250 SL
metsulfuron-methyl Agpro Meturon®, Associate® 600WDG, Escort®,
Triclopyr trimethylamine salt Garlon™ 360
Polyether modified polysiloxane Agpro Organosilicone, Pulse penetrant

 
Note: Glyphosate use is a permitted activity in the Waikato Regional Plan.

When and where might spraying occur?

When

Application may occur at any time during daylight hours, providing weather and tide conditions are suitable. 

As these pest plants are difficult to control, two to three follow-up applications may occur over the next 12 months. It is unlikely that spraying will occur during game hunting season.

See the list of scheduled spraying operations(external link) at the bottom of this page.

spraying operation zonesWhere

Click on a relevant zone area, below, to see its operational areas for 2018-19. The map shows where the zone areas are.  

We can directly notify you

We can notify you when herbicide control will be carried out if:

  • your property is an operational area
  • you have a consented water take in that area
  • you take water for domestic purposes in that area
  • you are are a certified organic producer.

For notification alerts, please email ResourceConsent124871@waikatoregion.govt.nz

Scheduled herbicide control operations

Below is a list of scheduled spraying operations. This list will be updated regularly so please check this page for updates.  Click here for past spraying operations.

Date Location Control type Herbicide Map number/s Target pest plant
11 - 18 June 2019 Te Otamanui Stream, south of Te Kowhai Knapsack or Mistblower

Metsulfuron

17 Senegal Tea
11 - 18 June 2019 Te Mawhai Road Knapsack or Mistblower

Metsulfuron

56 Water Poppy
11 - 18 June 2019 Cambridge Golf Course Knapsack or Mistblower

Metsulfuron

63 Water Poppy
11 - 18 June 2019 Pond on Clark Lane Knapsack or Mistblower

Metsulfuron

29 Sagittaria
11 - 18 June 2019 Stream near Livingstone Road Knapsack or Mistblower

Metsulfuron

77 Yellow flag iris
10 - 30 June 2019 Waikato River - Port Waikato to Ngaruawahia Gun and hose from boat Metsufuron 1, 3, 4, 5, 5A, 5B, 9, 10, 10A, 10B, 11, 11A Alligator weed
10 - 30 June 2019

Waikato River - Port Waikato to Mercer 

Helicopter Metsulfuron 1, 3, 4 Alligator weed
04 - 18 June 2019

Waihou River, Turua

Gun and hose from Air Boat Haloxyfop 21, 21A Manchurian wild rice
30 May - 6 June 2019 Somerton Ponds - Thomas Road, Huntington Knapsack / Mistblower Metsulfuron 30 Alligator weed
30 May - 6 June 2019 Hall Road, Tamahere Knapsack / Mistblower Metsulfuron 69 Alligator weed & yellow flag iris
24 - 31 May 2019 Hutchinson Road, Hamilton Knapsack / Mistblower Metsulfuron 31 Alligator weed
03 - 17 May 2019 Ruapuke Beach Knapsack Metsulfuron 36 Alligator Weed, Yellow flag iris
03 - 17 May 2019 Toreparu Stream Knapsack Metsulfuron 55 Alligator Weed
26 Apr - 10 May 2019 Awaroa River Mistblower Metsulfuron 16 Senegal Tea
26 Apr - 10 May 2019 Aka Aka Otaua Drains Mistblower Metsulfuron 2 Alligator Weed
17 - 18 April 2019 Waihou River upstream of Turua Helicopter Haloxyfop 21A Manchurian wild rice
14 - 18 April 2019 Waikato River - Port Waikato to Mercer Helicopter Metsulfuron 1, 3, 4 Alligator Weed
10 April 2019 Te Otamanui Lagoon Helicopter Triclopyr triethylamine 15 Alligator Weed
04 - 18 April 2019 Waihou River, Turua Area Mistblower Haloxyfop 21A Spartina
04 - 18 April 2019 Piako River Mistblower Haloxyfop 21 Spartina
28 Mar - 03 Apr 2019 Awaroa River Mistblower Metsulfuron 16 Senegal Tea
26 Mar - 20 Apr 2019 Te Otamanui Lagoon Knapsack, Mistblower, Gun & Hose Triclopyr 15 Alligator Weed
19 Mar - 09 Apr 2019 Toreparu Stream, Waimaori Road Knapsack Metsulfuron, Glyphosate 55 Alligator weed, yellow flag iris
19 Mar - 09 Apr 2019 Ruapuke Beach Knapsack Metsulfuron, Glyphosate 36 Alligator weed, yellow flag iris
18 Mar - 08 Apr 2019 Waikato River, Port Waikato to Ngaruawahia Gun & Hose, Mistblower Metsulfuron 1, 3, 4, 5, 5A, 5B, 9, 10, 10A, 10B, 11, 11A Alligator weed
18 Mar - 08 Apr 2019 Whangape Stream & Lake Whangape Gun & Hose, Mistblower Metsulfuron 6 Alligator weed
18 Mar - 08 Apr 2019 Lake Waikare & Te Onetea Stream Gun & Hose, Mistblower Metsulfuron 7 Alligator weed
13 - 27 March 2019 Mangakaware Stream and Wetland, Te Rore Gun & Hose Metsulfuron 26 Alligator weed
04-08 March 2019 5343 SH 31 Knapsack / Injection Imazapyr 65 Horsetail
26 Feb - 17 Mar 2019 Waikato River - Port Waikato to Ngaruawahia Gun & Hose, Mistblower Metsulfuron 1, 3, 4, 5A, 5B, 9, 10A, 10B, 11A Alligator weed
26 Feb - 17 Mar 2019 Whangape Stream & Lake Whangape Gun & Hose, Mistblower Metsulfuron 6 Alligator weed
26 Feb - 17 Mar 2019 Lake Waikare & Te Onetea Stream

Gun & Hose, Mistblower

Metsulfuron 7 Alligator weed
25 Feb-17 Mar 2019 Taharoa Beach - North of Matauwai Stream

Knapsack

Metsulfuron 57 Alligator Weed
25 Feb-17 Mar 2019 Tauhua Stream

Knapsack

Metsulfuron 58 Yellow Flag Iris
25 Feb-17 Mar 2019 Marokopa

Knapsack

Metsulfuron 59 Alligator Weed
19 Feb-11 Mar 2019 Whangamarino River - Falls Road Area

Helicopter

Metsulfuron 8 Alligator Weed
19 Feb-11 Mar 2019 Lake Whangape

Helicopter

Metsulfuron 6 Alligator Weed
17-20 February 2019 Waihou River

Air Boat-Gun and Hose

Haloxyfop 21A Manchurian Wild Rice
12 Feb - 04 Mar 2019 Waikato River, Mercer to Waikato Delta

Helicopter

Metsulfuron 1, 3, 4 Alligator Weed
12 Feb - 04 Mar 2019 Waikato River Delta

Helicopter

Haloxyfop 1 Pampas, Glyceria
04 - 25 February 2019 Lake Waikare & Te Oneteta Stream

Gun & Hose, Mistblower

Metsulfuron 7 Alligator Weed
04 - 25 February 2019 Whangape Stream & Lake Whangape

Gun & Hose, Mistblower

Metsulfuron 6 Alligator Weed
04 - 25 February 2019 Waikato River, Port Waikato to Ngaruawahia

Gun & Hose, Mistblower

Metsulfuron 1, 3, 4, 5, 5A, 5B, 9, 10, 10A, 10B, 11, 11A Alligator Weed
18-25 January 2019 Waihou River near Turua

Gun & Hose

Haloxyfop 21A Manchurian wild rice
17 January 2019 Te Otamanui Lagoon

Helicopter

Glyphosate 15 Alligator Weed
17 January 2019 Te Rore wetland

Helicopter

Glyphosate 26 Alligator Weed
14 Jan - 03 Feb 2019 Whangape Stream & Lake Whangape

Gun & Hose, Mistblower

Metsulfuron 6 Alligator Weed
14 Jan - 03 Feb 2019 Waikato River, Port to Hampton Downs

Gun & Hose, Mistblower

Metsulfuron 2,  3,  4,  5, 5A Alligator Weed
03 - 24 January 2019 Cambridge Golf Course pond Knapsack, Gun & Hose Imazapyr 63 Water Poppy
03 - 24 January 2019 Te Mawhai Road Pond Knapsack and Gun & Hose Imazapyr 56 Water Poppy
03 - 24 January 2019 Clarke Lane Pond Knapsack and Gun & Hose Metsulfuron 29 Sagittaria
03 January - 24 January 2019 Te Kowhai South Stream Knapsack and Gun & Hose Metsulfuron 17 Senegal Tea
03 - 6 January 2019 Waihou River, Turua area Gun & Hose Haloxyfop 21A Manchurian Wild Rice
03 - 23 January 2019 Waikato River, Hampton Downs to Port Waikato Gun and Hose, Mistblower Metsulfuron 1, 3, 4, 5, 5A Alligator Weed
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