Research under way in to biological control of sagittaria
Sagittaria platyphylla (sagittaria, delta arrowhead), is a serious aquatic weed affecting irrigation channels, drains, creeks and wetlands. Despite intensive herbicide control programs, sagittaria continues to be an ongoing issue due to the ability of plants to regrow from tubers and submersed
rosettes.
The Goulburn Broken CMA is part of a Victorian Government initiated biocontrol program that has identified three weevils that may help control the pest plant.
The weevils are natural enemies from the weed's home range in the USA.
Strict testing of the weevils is under way to ensure they do not attack native and or economically-important plant species.
Read more here.