Twenty tree assessments have been carried out in Onchan since 2021, with the vast majority on a path running through two glens.
Minister Clare Barber revealed the figures after a question from Onchan MHK Julie Edge.
In that time, Groudle Glen has seen 10 assessments, with Bibaloe Walk six and Molly Quirks four.
Current planned works for the area include storm damage remedial works in Molly Quirks, risk management works at Whitebridge roadside and disease management at Bibaloe Walk.
Mrs Barber said: “The department does not carry out tree surveys or inspections on private land or residential properties. Members of the public seeking advice or assessment of trees on private land are advised to consult a qualified arboriculturist.”