Serrated Tussock

Serrated Tussock is a declared noxious weed throughout VIctoria.

A landholder can be prosecuted for failing to control a noxious weed.

Serrated Tussock begins seeding in spring. One plant can produce 1000’s of seeds.

For more information, go to the Serrated Tussock Working Party website

or Agriculture Victoria

A couple of contacts at Department of Agriculture are:

  • Southwest: malinda.hall@agriculture.vic.gov.au
  • Statewide: steven.field@agriculture.vic.gov.au

Local Help

See the Serrated Tussock Flyer for local contacts who can assist with cultivation or spraying.

Identification

Serrated Tussock turns a lime green colour in warmer months where most other native species yellow. It sets seed from October to March and seeds will easily germinate in bare ground where there are no competitive pastures or native grasses

How to Control

There are 4 main ways to control Serrated Tussock.

  1. Monitor your land – if you are on a 5 or 10 acre lot, take a walk across your land at least monthly. If you notice any serrated tussocks, dig them out.
  2. Spot spray with Glyphosate.
  3. If you already have an infestation, you can spray or cultivate. Which one to do depends on the time of year.
    1. Cultivation is a viable option prior to seed drop, which usually starts in October.
    2. Spray with herbicide Glyphosate or Flupropanate. Note that spraying after June may not prevent seed set.

Resources:

Annual Control Calendar.

Serrated Tussock Flyer

Identification Brochures

Chilian Needle Grass

Chilean needle grass

Chilean Needle Grass is a tussocky perennial in the speargrass group of grasses growing to about 1m high.

Chilean needle grass is a declared noxious weed and is classed as a restricted weed in all Victorian catchments. Probably introduced in the 1930s and 1940s from South America where it occurs in Argentina, Bolivia, Ecuador, Uruguay, southern Brazil and Chile. The earliest Victorian record is from Northcote in 1934.

Poor slashing practices by the CoGG has spread Chilean needle grass from one end of the CoGG into WCC and beyond – not only along roadsides, but with infestations across agricultural land.

See the Department of Agriculture website for more information.

Control

Controlling Chilean Needle Grass is similar to Serrated Tussock (see above). Spraying with Glyphosate or Flupropanate can be effective at the right time of the year.

Cultivation is another control method.

If you don’t have a large infestation, preventing by walking over your land monthly and digging out any plants is the best of control. This also helps you to observe and guage the health of your pastures.

Grazing when the plants are young and tender can also help to keep it in control. But best not to run stock on infested paddocks once it goes to seed. The needle sharp seed can penetrate the skin and eyes of sheep, and cause problems when shearing.

African Boxthorn

A nightshade native to the Cape provinces of South Africa, African boxthorn was introduced intentionally to Australia in the second half of the nineteenth century as a fast-growing living fence resistant to cattle, said to be an economical substitute for post-and-rail and hawthorn hedge alike.

Today, this plant is one of the country’s worst weeds, an environmental invader that has a significant impact on native plants, birds and mammals, an occupier of agricultural land and a safe harbour to pests, and a severe long-term injury threat to livestock, native animals and people.