Illegal sale of water weed sparks alert
Mid West gardeners are being asked to be on the lookout for the sale of illegal water weeds after salvinia was reported being sold at WA markets and online recently.
The Department of Primary Industries and Regional Development issued the reminder after receiving reports the weeds were being sold as pond plants and were also sighted in a dam and front garden.
The reports relate to incidents in the south of the State, but agriculture and food biosecurity officer Glen Coupar said salvinia and other declared water weeds posed a significant threat to the agriculture and food sector as well as the environment, prompting a reminder to all in WA.
“Salvinia multiplies very quickly and forms a dense mat that covers lakes, slow-moving rivers, dams and other waterways,” he said. “The water weed threatens agriculture by blocking irrigation channels and preventing stock from getting access to fresh water from dams, and it deoxygenates water by preventing light and oxygen from entering the water.”
Because of the ease and speed with which salvinia spreads, it is not allowed to be sold or moved.
People can use the department’s MyWeedWatcher app to identify the weed. Reports can also be made by emailing email@example.com or contacting 1800 084 881.