The weed is said to be highly adaptable, and it will only be more noticeable as it grows larger in the warm weather.
Currently, there is only one known aquatic alligator weed infestation, in Bendigo, according to Agriculture Victoria leading biosecurity officer — incursion control Kaitlin Wright.
“We are asking the community to keep a careful watch out for the weed, especially when out walking along our northern waterways,” she said.
Alligator weed is a state-prohibited weed. It threatens to displace local native flora, damage habitat for native animals, clog up drains and other infrastructures, and block water flow.
“This invasive weed can form dense mats that cover large areas of water, push out native plants and reduce bird and fish life,” Ms Wright said.
The weed resembles common clover flowers but with glossy pear-shaped leaves and hollow stems.
“The flowers will only be seen in summer,” Ms Wright said.
She also urged the public not to attempt to treat or dispose of it themselves.
“If mown or cut, alligator weed will spread faster, as it sends out roots from the cuttings.
“It’s also suspected to be harmful to cattle by causing skin blisters and cancers from increased sensitivity to the sun.”
Agriculture Victoria advises people to report it to them if alligator weed is spotted, and it will be treated and disposed of safely at no cost.
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