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Trees in the Octagon and their new look after an arborist applied a mix of compost tea and a lime wash yesterday morning.
Dunedin City Council parks and reserves manager Lisa Wheeler said the compost tea would assist with the ''rejuvenation of the trees'' and the resistance of secondary pathogens. The lime wash would provide calcium replenishment, she said.
A couple of people called the council yesterday about the ''fish smell'' from the trees, Ms Wheeler said.
The smell was from the non-toxic compost tea and the odour would fade away within 24 hours, she said.
The work was part of a programmed maintenance schedule and the lime wash application was yet to be completed, she said.