Australis Biological

11/04/2026

Australia has native Polygala , a lot of them in fact . The majority are annuals that live in northern Australia.
They will be important test species in a biological control program for the invasive South African plant Polygala myrtifolia .
Here are some I found in the NT in the last week.

04/04/2026

Last week the Australis Biological team tackled a difficult invasive tree problem on the Glenaulin Creek in SW Victoria. The site is not far from Dartmoor. The creek is habitat to the endangered Glenelg freshwater mussel (Hyridella glenelgensis). Sadly, the Glenaulin Creek is severely invaded by Sycamore Maple and heavy leaf fall in Autumn causes oxygen depletion to the detriment of mussel populations.
Restoration of the riparian corridor starts with removal of Sycamore Maple using methods that are sensitive to water quality and aquatic invertebrate health. Once removed, native vegetation is allowed to recover and will be assisted by planned revegetation.
The difficulty is the scale of the invasion. Around 2.5 kms of water way are impacted by Sycamore Maple with very dense populations ranging from carpets of seedlings to an overstorey of large mature trees.
Our mission is to remove Sycamore Maple as efficiently as possible over the length of the waterway. If unchecked, the infestation is destined to disperse into the iconic Glenelg River. We have used basal bark methodology, frilling and foliar application of target specific herbicides.
This project is funded by the Glenelg Hopkin CMA and supported by DEECA.

02/05/2025

We’re at the Gippsland w**d and pest fest today talking all things w**ds in Rokeby Come down and say hello and see the big drone in action!

05/11/2024

Leptospermum and Melaleuca are favourites today . Crawling with them . Such good plants

02/11/2024

Chief remote pilot Kim Adair presents to Kangaroo Creek Landcare field day on the features of the DJIT40 spraying drone at a Blackberry Management Demonstration day organised with the help of Hepburn Shire Council. Dakota Contracting also gave a demonstration of their drum forestry mulcher. The two pieces of equipment complement each other. A great day for everybody.

18/10/2024

So true for a lot of w**ds but especially those with long-lived seed banks

If your gorse is in flower you now have a very small window before it starts seeding. The only way to win against gorse is to stop it seeding year after year!

15/10/2024

The DJI T40 helps us treat w**ds over large areas with ease and speed. Rough terrain, steep hills or flooded paddocks are no match for this drone. The T40 also has a 50kg lifting capacity for carrying loads into those hard to reach areas. Send us a message for a free quote and to see how we can help you

10/10/2024

Gas burning of annual and sensitive perennial exotic grasses is a useful tool for removal of difficult exotics amongst native grasses. Annuals are killed and providing enough heat difficult perennial’s like Sweet Vernal Grass which have a shallow crown fail to recover in 80% of cases . Regrowth can be dabbed with herbicide with little contact with regenerating natives . The Burn and Dab method. Very handy but be very aware of fire restrictions and flammability of surrounding vegetation. Moist mornings are an ideal time to apply this method.

17/09/2024

Improving riparian condition by removing invasive willows by hand with the help of our amazing winch at Barrongarook Creek in Colac Otway Shire.
Cut material will be mulched. Reed regrowth will soften the look but importantly help deter or slow down future invasions.
Thanks to Kim and Amy for the hard work.

02/08/2024

Australis Biological are fully qualified , insured and experienced aerial drone operators . Let us help you solve those difficult w**ds control or pest management issues with our T40 drone .