A joint project funded by BHP Billiton and delivered by Southern Gulf Catchments, the Field Day informed landholders about the work being done in the region to prevent the spread and reduce the density of weed infestations including prickly acacia, mesquite and rubber vine.

Presentations by representatives of Bio-security Queensland, the Tropical Weeds Research Centre and the Queensland Department of Agriculture, Forestry and Fisheries provided an update on the status of biological control and discussed the range of treatments of these weeds and management strategies.

The field day also included practical demonstrations of herbicide application and mechanical clearing, as well as pasture management after weed control.

There was plenty of opportunity for open discussions between the guest speakers and the landholders, particularly regarding the herbicide application methods used in treatingprickly acacia.

Dow Agrosciences representative Ken Springall attracted discussion from landholders with his demonstration on the correct way to treat prickly acacia and the timing of this treatment.

Ian McLean of Bush Agribusiness completed the day with his presentation on the cost benefit analysis of controlling prickly acacia under a variety of situations.

Landholder Tony Batt from Malvie Downs Station said the field was very informative and an excellent day.

"By the number of people in attendance it is obvious how big the [weed] problem is, everyone is very concerned and overwhelmed," Mr Batt said.