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Plant & Insect Diagnostic Services   arrow

Plant & Insect Diagnostic Services

Arapahoe County Extension’s professional horticulture staff and advanced Colorado Master GardenerSM volunteers provide sample analysis for a small fee to help homeowners, commercial growers, crop consultants, and golf course crews. Our sample analysis can help you to:

  • Identify causes of plant, turf, tree and shrub problems
  • Diagnose diseases or pest problems
  • Find safe and effective control measures
  • Receive information on pesticide alternatives or non-chemical controls

How it Works:
Samples may be dropped off Monday through Thursday 8:00 am to 4:30 pm. Turf samples not accepted October – April. Horticulture staff will complete the analysis, confirm results and ensure that you are contacted with up-to-date research-based information on each sample.

Drop-Off station (in office):

  • Fill out data form pre-numbered with sample number (given to client by front desk or Horticulture staff).
  • Fill out appropriate worksheet. Copy sample number from data form onto worksheet (given to client by front desk or Horticulture staff).
  • Give paperwork (data form, plus worksheet) to front desk (or Horticulture) staff member.
  • Sample should be brought in to the office by the client in a trash bag and tied shut.
  • Clients will then give the front desk the completed data form for billing.
  • Client will pay front desk (or Horticulture) staff via check, credit/debit card (there is a convenience fee for credit/debit card use) or cash (exact change only to minimize handling).
  • Front desk (Or Horticulture) staff will take bagged sample and paperwork and put it in the Master Gardener work area.
  • Clients will be called for follow-up information.

Click here for guidelines for bringing in a sample.

Cash/Check Fees:

  • Insect Identification: $8
  • Diagnosis: $8
  • Plant Identification: $8 first plant; $3 each additional.
  • Out-of-County Surcharge (for any service): $3
    • There is an additional fee for credit card transaction.

No-one shall be denied the opportunity to participate or receive information based on their ability to pay. Fees are subject to change.

More: CSU Extension Soil, Water and Plant Testing Lab