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City of Grand Junction



2024 Ash Treatment Program Registration

Filling out the form now will put you on the list for 2024 treatments. T4 will begin making contact with households in late April to early May to set up appointments for evaluation and treatment. Evaluations will be made in early to mid-May once trees have leafed out. Treatments will likely begin in June.

Ash trees make up 20% of Grand Junction trees, and pests are killing these trees at an alarming rate. We are teaming up with T4 Tree Service to deliver Grand Junction residents the opportunity to protect their Ash trees against these killer pests.

To qualify for treatment trees must be:

  • on residentially zoned lots
  • within the incorporated City limits of Grand Junction
  • 8" in diameter (at a minimum)
  • with clear evidence of stewardship of the tree/surrounding landscape

Trees are also evaluated for general health.  Trees that are already showing signs of stress may not qualify.   There is a $225 minimum fee for treatment (split 50/50 between the resident and the City).  The City will pay up to $500 per address for treatments.  

Questions may be directed to T4 Tree Service (970) 640-5284.

Contact Name for 2024 Treatment List

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