Poisoning
Certain plant species can cause poisoning of livestock in particular conditions. The poisoning is often due to contamination of the plant with an organism such as a fungus or bacterium.
Plant toxins
Annual ryegrass toxicity (ARGT) causes many sheep deaths and significant production loss in Western Australia and, to a lesser extent, South Australia. AWI is investigating the possibility to develop a vaccine for ARGT.
Perennial ryegrass toxicity (PRGT) has also caused significant sporadic losses in the eastern states.