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Western Sydney Weeds Authority

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Western Sydney Weeds Authority

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We are the Local W**d Control Authority for Blacktown, Hawkesbury, The Hills and Penrith councils

We work to contain and control the highest risk invasive w**ds across western Sydney. We seek to protect our natural, agricultural and recreational assets from the impact of w**ds. Our staff undertake the activities of property inspection, landscape surveillance, aquatic w**d harvesting, herbicide application and bush regeneration techniques.

27/10/2026

Recently the w**d control team have been treating small infestation of Tiger pear alongside roadside locations in South Windsor, Oakville and Vineyard. It is a species of cactus that can easily fragment by detaching onto animals, shoes and vehicles. Care must be taken when dealing with this plant as spines are very sharp, plants often only grow to half a meter high.
Plants can be easy to miss as it is often hiding in between African lovegrass.
Plants in the photos have been basal sprayed with diesel and a herbicide. These will decompose onsite after treatment.

If you have seen Tiger pear on your property or roadside location, please report at: https://wswa.nsw.gov.au/w**d-notification-form/

Further information can be found at: https://w**ds.dpi.nsw.gov.au/W**d/TigerPear

Hawkesbury-Nepean Landcare Network

19/10/2026

The w**d control team have recently been targeting African boxthorn infestations in Arndell Park and Quakers Hill. Care must be taken when treating this w**d to avoid the sharp thorns along the plant stems. The berries are consumed and spread by birds.
If you have seen this plant, please report via our w**d report form at: https://wswa.nsw.gov.au/w**d-notification-form/

Further information can be found at:
https://w**ds.dpi.nsw.gov.au/W**d/AfricanBoxthorn
Hawkesbury-Nepean Landcare Network

13/10/2026

Fire ants have been detected in Greater Sydney Futher information can be found at: https://www.dpird.nsw.gov.au/dpi/biosecurity/invasive-plants-and-animals/insect-pests/rifa/Seen-them-call-us

07/10/2026

Thank you for having WSWA and Hawkesbury-Nepean Landcare Network come talk about Lantana and Threatened species.
This is made possible through the support of The NSW Landcare Enabling Program and our Local Landcare Coordinator.
Grose View Public School

02/10/2026

28/09/2026

Eve's needle cactus
Do not grow Eve’s needle cactus in gardens or pots. Do not take cuttings of unknown cactus plants to grow out or share with others.
This plant must not be sold anywhere in NSW.
Further information can be found on the following link:
https://w**ds.dpi.nsw.gov.au/W**d/EvesNeedleCactus

**dsWednesday

Eve's needle cactus has grey-white spines up to 7 cm long that cause painful injuries to people, livestock, working dogs and pets.

Wildlife can die if they get trapped in the spines. Eve’s needle cactus also outcompetes native plants.

This plant must not be sold anywhere in NSW.

For more information go to the W**dWise website: https://w**ds.dpi.nsw.gov.au/W**d/EvesNeedleCactus Or download the app: www.dpird.nsw.gov.au/w**dwise

22/09/2026

With the warmer weather WSWA staff are on the look out for aquatic w**ds. The w**d in the photo is Sagittaria platyphylla and can be found in drainage channel and shallow water bodies. It can spread quickly and impact water flow and habitat. Plants can be submersed and become difficult to control. However with the dry weather plants were accessible for treatment.
This plant must not be sold in NSW.

Further information can be found on the following link:
https://w**ds.dpi.nsw.gov.au/W**d/Sagittaria
Hawkesbury-Nepean Landcare Network

15/09/2026

Amazing work by the w**d control team who have removed and treated a larger Smooth tree pear Opuntia monocantha along a roadside location. Even more difficult due to the fact Cats claw creeper was growing on the plants. Both w**ds were treated allowing for the habitat tree to remain. Plants were removed from site and treated at our depo before disposal.

https://w**ds.dpi.nsw.gov.au/W**d/SmoothTreePear

Hawkesbury-Nepean Landcare Network

08/09/2026

Garden waste spreads w**ds and decreases biodiversity.
It is important that material is disposed of properly.
Do you know the 4 D'S?

Hawkesbury-Nepean Landcare Network Hawkesbury City Council Blacktown City Council The Hills Shire Council Penrith City Council

Address

6 Walker Street
Windsor, NSW
2756

Opening Hours

Monday	9am - 4pm
Tuesday	9am - 4pm
Wednesday	9am - 4pm
Thursday	9am - 4pm
Friday	9am - 4pm

Telephone

+61245749600

Website

https://wswa.nsw.gov.au/contact-us/

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