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Past herbicide control

2019

Date Location Control type Herbicide Map number/s Target pest plants
18 Sept - 1 Oct 2019 Drain running from Lincoln Street to Kahikatea Park Knapsack Metsulfuron 48, 49 Alligator weed
18 Sept - 1 Oct 2019 Stream near Wairere Drive, Logan Court, Milbrook Place Knapsack Metsulfuron 38 Alligator weed
18 Sept - 1 Oct 2019 Stream corner Gordonton-Puketaha Road Knapsack Metsulfuron 79 Alligator weed
18 Sept - 1 Oct 2019 Somerton Ponds and Kirikiriroa Stream - Thomas Road Knapsack Metsulfuron 30 Alligator weed
10 Sept - 1 Oct 2019 Waikato River from Mercer Bridge to Ngaruawahia Mist blower Metsulfuron 5A, 5B, 9, 10A, 10B, 11A Alligator weed
10 Sept - 1 Oct 2019 Whangamarino River and Wetland Mist blower Metsulfuron 8 Alligator weed
10 Sept - 1 Oct 2019 Drain running from Kereone Road to Cussen Road, Morrinsville Knapsack, gun & hose Metsulfuron 76 Yellow flag iris
9 - 30 July 2019 Waikato River Delta Helicopter Metsulfuron 1, 3 Alligator weed
9 - 30 July 2019 Waikato River from Rangiriri downriver to the Elbow Gun & hose, mistblower Metsulfuron 3, 4, 5A, 5B, 9 Alligator weed
19 - 21 June 2019 Waihou River, Turua Gun and hose from Air Boat Haloxyfop 21 Manchurian wild rice
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

2018

Date Location Control type Herbicide Map number/s Target pest plants
19 – 23 December 2018 Te Rore - Mangakaware Wetland and Stream Helicopter Metsulfuron  26 Alligator Weed
19 – 23 December 2018 Te Otamanui Lagoon Helicopter Glyphosate and Pulse 15 Alligator Weed
06 - 24 December 2018 Te Otamanui Lagoon Motorised knapsack, Knapsack, Mistblower, Gun and Hose Triclopyr 15 Alligator weed
06 December - 24 December 2018 Te Otamanui Lagoon Motorised knapsack, Knapsack, Mistblower, Gun and Hose Glyphosate & Pulse 15 Alligator weed
03 December - 24 December 2018 Pukerimu Lane Motorised knapsack, Knapsack, Mistblower Metsulfuron & Pulse 66 Yellow Flag Iris
03 December - 24 December 2018 Kereone Rd Drain Gun & Hose Metsulfuron & Pulse 76 Yellow Flag Iris
03 December - 24 December 2018 Pooles Rd Drain Knapsack Metsulfuron 23 Alligator weed
03 December - 24 December 2018 Ruahorehore Stream Knapsack Metsulfuron 18 Alligator weed
26 November - 14 December 2018 Whangamarino & Maramarua River Mistblower Metsulfuron 8 Alligator weed
26 November - 14 December 2018 Lake Waikare & Te Onetea Stream Mistblower Metsulfuron 7 Alligator weed
26 November - 14 December 2018 Lake Whangape & Whangape Stream Gun & Hose/Mistblower Metsulfuron 6 Alligator weed
26 November - 14 December 2018 Waikato River Tuakau Bridge to Ngaruawahia Gun & Hose/Mistblower Metsulfuron 4, 5A, 5B, 9, 10A, 10B, 11A Alligator weed
26 November - 14 December 2018 Waikato River Tuakau Bridge to Delta Gun & Hose/Mistblower Metsulfuron 1, 3 Alligator weed
26 - 30 November 2018 Waikato River - Narrows Mistblower Metsulfuron 68 Alligator weed
22 - 30 November 2018 Kariotahi Gun & Hose Metsulfuron 33 Alligator weed
11 - 18 November 2018 Waikato River - Whangape Stream/Rangiriri area Helicopter Metsulfuron 9 Alligator weed
7 - 27 November 2018 Whangamarino River & Wetland - Punagarehu canal area Helicopter Metsulfuron 8 Alligator weed
7 - 27 November 2018 Lake Whangape Helicopter Metsulfuron 6 Alligator weed
06 November - 26 November 2018 Waihou River Turua area Gun & Hose Haloxyfop 21A Manchurian wild rice
06 November - 19 November 2018 Stream behind Morgan Park Knapsack Metsulfuron 46 Yellow flag iris
30 October - 19 November 2018 Waikato River, Tuakau Bridge to Ngaruawahia Gun and hose/mist blower Metsulfuron
4, 5A, 5B, 9, 10A, 10B, 11A
Alligator weed
30 October - 19 November 2018 Lake Whangape and Whangape stream Gun and hose/mist blower Metsulfuron 6 Alligator weed
30 October - 19 November 2018 Lake Waikare and Te Onetea Stream Gun and hose/mist blower Metsulfuron 7 Alligator weed
30 October - 19 November 2018 Whangamarino  River Gun and hose/mist blower Metsulfuron 8 Alligator weed
16 October - 5 November 2018 Pukerimu Lane - Cambridge Mist Blower and Knapsack Metsulfuron 66 Yellow Flag Iris
16 October - 5 November 2018 Waikato River - Port Waikato to Tuakau Bridge Gun & hose Metsulfuron 1 & 3 Alligator weed
15 October - 5 November 2018 Waikato River - Tuakau Bridge to Hampton Downs, Whangape Stream & Lake Whangape, Whangamarino Wetland and River and Maramarua River Helicopter - Boom spray Metsulfuron 4, 5A, 6, 8 Alligator weed
8 October - 29 October 2018 Waikato River - Narrows to Hamilton Gun & hose or mist-blower Metsulfuron 68 Alligator weed
15 October - 5 November Waihi Township Gun & hose and knapsack Metsulfuron & pulse 46 Yellow Flag Iris
8 October - 29 October Morrinsville Tahuna Road Gun & hose and motorised knapsack Metsulfuron & pulse 24 Yellow Flag Iris
11 September - 21 October Waiti Road Gun & hose and Mist Blower Metsulfuron 74 Yellow Flag Iris
17 September - 29 October Lake Whangape Stream, Whangape Stream and Whangamarino Wetland Gun & hose and Mist Blower Metsulfuron 6 & 8 Alligator weed
17 September - 29 October Waikato River, Port Waikato to Ngaruawahia Gun & hose and Mist Blower Metsulfuron 1, 3, 4, 5a, 5b, 9, 10a, 10b, 11a Alligator weed
28 August - 17 September Waikato River, Port Waikato to Ngaruawahia Gun & hose and Mist Blower Metsulfuron 1, 3, 4, 5a, 5b, 9, 10a, 10b, 11a Alligator weed
2 August - 23 August Piako River Gun & hose Haloxyfop 21 Spartina
2 August - 23 August Waikato River from Tuakau Bridge to Port Waikato Gun & hose Metsulfuron 1, 3 Alligator weed
9 July - 30 July 2018 Piako River downstream from Ngatea Mist Blower Haloxyfop 21 Spartina
9 July - 30 July 2018 Waihou River downstream from Turua Mist Blower Haloxyfop 21A Spartina
9 July - 30 July 2018 Waikato River from Tuakau Bridge to Port Waikato Gun & hose Metsulfuron 1, 3 Alligator weed
8 June - 30 June 2018 Waihou River, Turua area Gun & hose Haloxyfop 21A Manchurian wild rice
5 June - 26 June 2018 Waikato River delta area Gun & hose Metsulfuron 1 Alligator weed
1 June - 22 June 2018 State Highway 26 Puriri Gun & hose Haloxyfop 52 Manchurian wild rice
31 May - 12 June 2018 Te Mawhai Road Knapsack Imazapyr 56 Water Poppy
31 May - 12 June 2018 Mystery Creek Knapsack Metsulfuron and or/Imazapyr 25 Alligator weed
31 May - 20 June 2018 Te Rore Gun & Hose/Knapsack Metsulfuron and or/Imazapyr 26 Alligator weed
21 May - 11 June 2018 Horahora Gun & Hose Haloxyfop 28 Manchurian wild rice
15 May - 20 June 2018 Whangape Stream and Lake Whangape Gun & Hose/Knapsack Metsulfuron and Imazapyr 6 Alligator weed
22 May - 12 June 2018 Golden Cross Road Knapsack Metsulfuron 50 Wild ginger
24 April - 30 April 2018 Whangamarino River and wetland Helicopter Metsulfuron 8 Alligator weed and yellow flag iris
23 April - 4 May 2018 Horahora Gun & Hose Haloxyfop 28 Manchurian Wild Rice
23 April - 14 May 2018 Te Pahu Knapsack Metsulfuron 29 Sagittaria
23 April - 14 May 2018 Te Kowhai Knapsack Metsulfuron 17 Senegal Tea
23 April - 14 May 2018 Te Mawhai Road Gun & Hose Imazapyr 56 Water Poppy
15 April - 4 May 2018 Te Otamanui Lagoon Knapsack Metsulfuron 15 Alligator weed
19 April - 7 May 2018 Cambridge Golf Course Knapsack Imazapyr 63 Water poppy
9 - 20 April 2018 Waikato River delta area Helicopter Metsulfuron 1 Alligator weed
7 - 23 April 2018 Adjacent to the Waihou River, Turua – between Wharepoa Road and Bond Road Helicopter Haloxyfop 21A Manchurian wild rice
7 - 14 April 2018 Whangamarino River and wetland Helicopter Metsulfuron 8 Alligator weed, yellow flag iris
27 - 29 March 2018 Te Otamanui lagoon at Te Kowhai Helicopter Metsulfuron 15 Alligator weed
26 March - 6 April 2018 Waihou River downstream from Turua on true right Gun & hose Haloxyfop 21A Spartina
22 March - 13 April 2018 Waikato River downstream from Narrows Gun & hose Metsulfuron 68 Alligator weed
19 March - 9 April 2018 Waikato River from Meremere to Tuakau, Lake Waikare, Whangamarino River and wetland Helicopter Metsulfuron 5A, 4, 3, 7, 8 Alligator weed
9 - 30 March 2018 Waikato River from Ngaruawahia to Waikato delta, Lake Whangape, Lake Waikare and Te Onetea & Whangape Streams Gun & hose Metsulfuron 1, 3, 4, 5A, 5B, 6, 7, 9, 10A, 10B, 11A Alligator weed
12 - 18 March 2018 Waihou River upstream from Turua Gun & hose Haloxyfop 21A Manchurian wild rice
5 - 16 March 2018 Waihou River Mistblower Haloxyfop 21A Spartina
27 February - 20 March 2018 Marokopa Knapsack Metsulfuron 59 Alligator weed
27 February - 20 March 2018 Taumatamoana, Potaka Station (Harihari) Knapsack Metsulfuron 41 Alligator weed
27 February - 20 March 2018 Taharoa Ironsands Gun & hose and knapsack Metsulfuron 57 Alligator weed
27 February - 20 March 2018 Te Kowhai North, Te Otamanui Lagoon Aerial, Amphibious Metsulfuron 15 Alligator weed
23-24 February 2018 Lakes Rotoroa & Rotokaeo Gun & hose Metsulfuron 71 & 72 Parrot's feather, yellow flag iris
19 February - 5 March 2018 Ruahorehore Stream, Waihi Knapsack Metsulfuron 18 Alligator weed
11 - 25 February 2018 Piako River downstream from Pipiroa Mistblower Haloxyfop 21 Spartina
10 - 25 February 2018 Waihou River, upstream and downstream of Turua Gun and hose & mistblower Haloxyfop 21A Manchurian wild rice & spartina
9 February - 2 March 2018 Lake Whangape Helicopter Metsulfuron 6 Alligator weed
5 - 26 February 2018 Waikato River from Ngaruawahia to Waikato delta, Lake Whangape, Lake Waikare and Te Onetea & Whangape Streams Gun & hose Metsulfuron 1, 3, 4, 5A, 5B, 6, 7, 9, 10A, 10B, 11A Alligator weed
8 - 15 February 2018 Toreparu Stream near Waimaori Road Knapsack Metsulfuron 55 Alligator weed & yellow flag iris
8 - 15 February 2018 Ruapuke Beach Road beach access Knapsack Metsulfuron 36 Alligator weed & yellow flag iris
8 - 15 February 2018 Te Rore wetland Helicopter Metsulfuron 26 Alligator weed
28 January 2018 Turua at Waihou River Gun & hose Haloxyfop 21A Manuchurian wild rice
11-18 January 2018 Stream between Dinsdale Roundabout to Kahikatea Park Knapsack metsulfuron 48 Alligator weed
11-18 January 2018 Hall Road Gun & hose metsulfuron 69 Alligator weed
11-18 January 2018 Stream between Thomas Road & Somerton Drive Gun & hose metsulfuron 30 Alligator weed
10-13 January 2018 Waihou River, Turua area Helicopter Haloxyfop 21A Manchurian wild rice
7-27 January 2018 Waikato River from Port Waikato to Tuakau bridge Helicopter and gun and hose spraying metsulfuron 1, 3 Alligator weed
5-25 January 2018 Waikato River from Ngaruawahia to Tuakua Bridge, plus Lakes Whangape
& Waikare and Te Onetea & Whangape Streams
Gun and hose spraying from boat metsulfuron 4, 5A, 5B, 6, 7, 9, 10A, 10B, 11A Alligator weed

2017

Date Location Control type Herbicide Map number/s Target pest plants
12 - 22 December 2017 Lake Whangape & Whangape Stream Gun & hose metsulfuron 6 Alligator weed
12 - 22 December 2017 Lake Waikare & Te Onetea stream Gun and hose metsulfuron 7 Alligator weed
12 - 22 December 2017 Waikato River - Port Waikato to Tuakau bridge Gun & hose metsulfuron 1, 3 Alligator weed
11 - 22 December 2017 Kirikiriroa Stream Gun & hose metsulfuron 30 Alligator weed
5 - 22 December 2017 Waikato River Narrows to Hamilton Mistblower metsulfuron 68 Alligator weed
27 November 2017 Waikato River, Ngaawapura Rapids to Waiotapu Stream Knapsack metsulfuron 60 Yellow flag iris
21 - 24 November 2017 5343 SH 31, Kawhia Knapsack metsulfuron and/or Imazapyr 65 Horsetail
21 - 24 November 2017 Potaka Station and near Matauwai Stream, Taharoa Knapsack and/or gun and hose metsulfuron and/or Imazapyr 41, 57 Alligator weed
20 November to 11 December 2017 Murphy Lane, Taupiri Mistblower metsulfuron 70 Yellow flag iris
16 - 30 November 2017 Waihou River at Turua Gun and hose from boat Haloxyfop 21A Manchurian wild rice
16 - 17 November 2017 Te Otamanui Lagoon (Te Kowhai) Helicopter Imazapyr, metsulfuron 15 Alligator weed
15 - 29 November 2017 Waihi urban drains and streams Knapsack and/or gun and hose metsulfuron 46 Yellow flag iris
13 November to 4 December 2017 Maungahaumia stream and drain Knapsack and gun & hose metsulfuron 24 Yellow flag iris
6 - 20 November 2017 Waikato River – Narrows to Hamilton Knapsack metsulfuron 68 Alligator weed
1 - 22 November 2017 Te Otamanui Lagoon, Te Kowhai Knapsack and/or gun and hose metsulfuron, Imazapyr & Triclopyr 15 Alligator weed
1 - 15 November 2017 Waihou River at Turua Gun and hose from boat Haloxyfop 21A Manchurian wild rice
26 October to 15 November 2017 Waikato River from Ngaruawahia to Waikato delta Gun and hose from boat metsulfuron 1, 3, 4, 5A, 5B, 9, 10A, 10B, 11A Alligator weed
25 October 2017 27 Pukerimu Lane, Cambridge Knapsack metsulfuron 66 Yellow flag iris
19 to 31 October 2017 Kirikiriroa Stream and Somerton Ponds Knapsack metsulfuron 30 Alligator weed
9 - 29 October 2017 Old Taupriri Road, Ngaruawahia - on true right of the Waikato River starting at the rail bridge adjacent Great South Road Knapsack and gun & hose metsulfuron 11A Yellow flag iris
4 - 18 October 2017 Waikato River between Narrows and Hamilton Knapsack metsulfuron 68 Alligator weed
19 September to 10 October 2017 Te Onetea Stream and Lake Waikare Gun and hose from boat metsulfuron 7 Alligator weed
18 September to 9 October 2017 Waikato River from Ngaruawahia to Waikato delta Gun and hose from boat metsulfuron 1, 3, 4, 5A, 5B, 9, 10A, 10B, 11A Alligator weed
22 August to 10 September 2017 Marokopa Beach area Knapsack metsulfuron or imazapyr 59 Alligator weed
9 – 30 August 2017 Te Onetea Stream & Lake Waikare, Whangamarino River & wetland Gun & hose from boat metsulfuron 7, 8 Alligator weed
9 – 30 August 2017 Waikato River from Horotiu Bridge to Waikato delta including Lake Whangape Helicopter and gun & hose from boat metsulfuron 1, 3, 4, 5A, 5B, 6, 9, 10A, 10B, 11A, 11B Alligator weed
9 – 30 August 2017 Waikato River from Narrows to Hamilton City boundary Gun & hose from boat metsulfuron 68 Alligator weed
4 - 25 August 2017 Te Onetea Stream and Lake Waikare Handgun metsulfuron 7 Alligator weed
24 July to 14 August 2017 Te Otamanui Lagoon (Te Kowhai) Knapsack and/or gun and hose metsulfuron, Imazapyr, Haloxyfop, Triclopyr 15 Alligator weed
19 July to 8 August 2017 Waikato River from Horotiu Bridge to Waikato delta including Lake Whangape Helicopter and gun & hose from boat metsulfuron 1, 3, 4, 5A, 5B, 6, 9, 10A, 10B, 11A, 11B Alligator weed
8 - 14 June 2017 Te Rore wetland Knapsack and/or gun and hose metsulfuron, Imazapyr (Unimaz) 26 Alligator weed
6 - 30 June 2017 Waikato River from Tuakau to Horotiu Bridge, including Lake Whangape Helicopter and gun and hose metsulfuron 3, 4, 5A, 5B, 6, 9, 10A, 10B, 11A, 11B Alligator weed
24 May - 20 June 2017 Golden Cross Road, Waitekauri Knapsack metsulfuron 50 Wild ginger
5 May - 16 June 2017 Te Otamanui Lagoon (Te Kowhai) Knapsack or gun and hose Metsufuron, triclopyr 15 Alligator weed
5 - 12 May 2017 Te Otamanui Lagoon (Te Kowhai) Helicopter metsulfuron 15 Alligator weed
2 - 12 May 2017 Cambridge Golf Course Knapsack Unimaz 63 Water poppy
18 April – 5 May 2017 Waikato River from Port Waikato to Ngaruawahia, including Lake Whangape      

Duck shooting starts on Saturday 6 May and finishes on 5 June, so there will be no spraying expected during that time in these areas.

Helicopter and gun and hose metsulfuron  1, 3, 4, 5A, 5B, 6, 9, 10A, 10B, 11A Alligator weed
18 April 2017  Oripunga Road

 

Knapsack or gun and hose Haloxyfop and crop oil

28

Manchurian wild rice
17 March - 6 April 2017

Waikato River from Port Waikato to Tuakau Bridge

Helicopter and airboat metsulfuron

1, 3

Alligator weed
1 - 15 March 2017

- Thomas Road, Huntington
- Wairere Drive/Logan Court/Milbrook Place
- Dinsdale Roundabout to Kahikatea Park
- Lincoln Street to Dinsdale Roundabout
- Hutchinson Road
- River Road Landfill

Knapsack Unimaz

30, 31, 32, 38, 48, 49

Alligator weed
1 March 2017 Te Rore Helicopter metsulfuron

26

Alligator weed
17 February - 9 March 2017 Lake Whangape and Whangape Stream Helicopter or gun and hose metsulfuron

6

Alligator weed
17 February - 9 March 2017 Waikato River from Port Waikato to Ngaruawahia Helicopter or gun and hose metsulfuron

1, 3, 4, 5A, 5B, 9, 10A, 10B, 11A

Alligator weed
27 January - 2 February 2017 Whangamarino River near Island Block boat ramp and Maramarua River Helicopter metsulfuron

8

Alligator weed
24 January - 13 February 2017 Ruahorehore Stream and Pooles Road and Bosson Road, Te Aroha Gun and hose or knapsack metsulfuron

18, 23

Alligator weed
17 January - 6 February 2017 Waikato River from Port Waikato to Huntly, and Lake Whangape Helicopter and gun and hose spraying metsulfuron

1, 3, 4, 5A, 5B, 6, 9, 10A

Alligator weed

4 January - 24 January 2017

Clarks Lane/Limeworks Loop Road, Te Pahu Knapsack metsulfuron

29

Sagittaria

4 January - 24 January 2017

Te Mawhai Road Knapsack metsulfuron

56

Water poppy

22 December 2016 to 12 January 2017

Waikato River from Port Waikato to Huntly, and Lake Whangape  Helicopter and gun and hose metsulfuron

1, 3, 4, 5A, 5B, 6, 9, 10A

Alligator weed

21 December 2016 to 11 January 2017

Tumate Mahuta Lagoon, Huntly Gun and hose metsulfuron

10A

Alligator weed

19 December 2016 - 16 January 2017

Te Kowhai North Gun and hose from boat and mistblower metsulfuron

15

Alligator weed
17 December 2016 - 13 January 2017

Lake Whangape

 Gun and hose from boat  metsulfuron 6  Alligator weed

2016

Date Location Control type Herbicide Map number/s Target pest plants
6 - 23 December 2016 Pukerimu Lane area, Cambridge Knapsack metsulfuron 66 Yellow flag iris
2 - 23 December 2016 River Road Landfill - Hamilton Gun and hose metsulfuron 32 Alligator weed
1 - 22 December 2016 Thomas Road, Huntington, Hamilton Knapsack Imazapyr 30 Alligator weed
30 November - 20 December 2016

Waikato River fromHuntly  to Waikato Delta, Lake Whangape and Whangape Stream

Helicopter metsulfuron 1, 3, 4, 5A, 6, 9, 10A Alligator weed
26 November - 17 December 2016

 Waihou River at Turua

Gun and hose from boat Haloxyfop 21A Manchurian wild rice
24 November - 15 December 2016 Te Kowhai North Gun and hose or knapsack metsulfuron 15 Alligator weed
24 - 25 November 2016 Te Kowhai North Helicopter metsulfuron 15 Alligator weed
23 November - Wendesday 14 December 2016

-  Thomas Road, Huntington
-  Dinsdale Roundabout to Kahikatea Park
-  Lincoln Street to Dinsdale Roundabout
-  Wairere Drive, Logan Court, Milbrook Place
-  Hutchinson Road
-  River Road landfill

Knapsack Imazapyr 30, 31, 32, 38, 48, 49 Alligator weed
23 November - 13 December 2016

 Ngaawapura Rapids to Waiotapu Stream

Knapsack metsulfuron 60 Yellow flag iris
22 November - 13 December 2016

 Waikato River from Port Waikato to Tuakau Bridge,
 Lake Whangape and Whangape Stream

Gun and hose from boat metsulfuron 1, 3, 6 Alligator weed
21 - 24 November 2016

 Waihou River at Turua

Helicopter Haloxyfop 21A Manchurian wild rice
14 - 25 November 2016

 Waimakariri & Waihou Rivers at SH5

Gun and hose or knapsack Haloxyfop 42 African feather grass
8 - 29 November 2016

 Walmsley Road, Waihi

Gun and hose or knapsack metsulfuron 46 Yellow flag iris
8 - 15 November 2016

 Lake Whangape and Whangape Stream

Helicopter metsulfuron 6 Alligator weed
12 - 19 November 2016

 Waihou River at Turua

Gun and hose from boat Haloxyfop 21A Manchurian wild rice
7 - 9 November 2016

 Waihou River at Turua

Helicopter Haloxyfop 21A Manchurian wild rice
7 - 11 November 2016

 Waimakariri & Waihou Rivers at SH5

Gun and hose or knapsack Haloxyfop 42 African feather grass
31 October - 21 November

 Lake Whangape and Whangape Stream,
 Waikato River from Whangape Stream to Ngaruawahia

Gun and hose from boat metsulfuron 6, 9, 10A, 10B, 11A Alligator weed
31 October - 11 November 2016

 Ngaawapura Rapids to Waiotapu Stream

Knapsack metsulfuron 60 Yellow flag iris
22 October - 12 November 2016

 Waikato River from Port Waikato to Tuakau Bridge

Gun and hose from boat metsulfuron 1, 3 Alligator weed
18 - 28 October 2016

 Waihou River, Waitakururu and Thames Marina

Gun and hose Haloxyfop 21A, 22 Spartina
11 - 28 October 2016

 Walmsley Road, Waihi

Gun and hose or knapsack metsulfuron 46 Yellow flag iris
3 - 10 October 2016

 Waihou River and Piako River

Gun and hose from boat Haloxyfop 21, 21A Spartina
1 - 15 October 2016

 Waikato River from Port Waikato to Tuakau Bridge

Gun and hose from boat metsulfuron

1, 3

Alligator weed
14 - 30 September 2016

 Waikato River from Ngaruawahia to Tauranganui,
 Te Onetea Stream and  Lake Waikare

Gun and hose from boat metsulfuron

 3, 4, 5A, 5B, 7, 9, 10A, 10B, 11A

Alligator weed