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Sample preparation guidelines for Irish mushroom producers


Wrap a punnet in tissue or some absorbent material, place in a plastic bag and post sample in a rigid container with freezer blocks to keep sample cold.

Include the following details on a typed A4 page:

1. Mushroom strain (A15 etc...)

2. Compost supplier (Northway, Walsh etc..)

3. Flush and stage of flush (e.g. 1st Flush, coming to end of flush)

4. Comments on crop symptoms (e.g. Browning/ Poor development)

5. Test required (Virus, Mummy)


Take a representative sample (1kg approx.) and place in a, unsealed plastic bag. N.B. Do not make the bag airtight.

Post sample in a rigid container and include the following details:

1. Supplier

2. Growth stage (Bulk compost on delivery, First flush etc…)

3. Delivery date to your site.

4. Comments on crop symptoms if applicable.

5. Test required (Quality check, Virus test)

Cost (Per Sample)

Virus test (MVX, LaFrance)


Compost Quality test (checks for molds/pathogens and Agaricus growth)


Mummy test (bacterial isolation)


Pathogen identification by morphology (microscopic examination)


Pathogen identification by DNA extraction



Payments can be made by credit card over the phone or by invoice. To speed up payment process, please raise a purchase order number or reference number to be included on the invoice. Further details will be supplied upon contact. Existing Teagasc customers should contact donal.gernon@teagasc.ie to discuss options.