More of Cronulla's Canary Island Date Palms, some of which are about 100 years old, face removal due to a spreading disease.
Sutherland Shire Council has removed many of the species over the years, including four or five in Cronulla Park this year.
A number of other palms in Cronulla Park and the walkway from the station, as well as in Shelly Beach Park, have been marked for potential removal.
Signs attached to the palms state "I'm sick", with a brief explanation of the problem.
A council spokeswoman said the health and condition of the palms, "some of which have been standing since the 1920s", was being reviewed.
"This is due to numerous palms having acquired a fungal disease known as Fusarium wilt," she said.
"Council has been working for a number of years to address the appearance of local palms with this disease and to contain its spread.
"As the disease is terminal with no proven remedy, council is taking a proactive approach by removing diseased palms and others which are susceptible.
"Council has introduced signage to engage and inform the community of this disease and identify impacted palms."
The spokeswoman said regular inspections would determine palms that have significantly declined or pose safety risks, requiring removal.
"This is an ongoing management program and therefore palms are removed, like any tree, only when council deems it is necessary or when associated projects occur that afford an opportunity to plant alternative tree species.
"Council is investigating a diverse range of trees to replace those that are removed in order to provide a healthier and more sustainable local tree canopy."