North American Truffle Growers Association

Dedicated to promoting education and awareness


Fall 2022 Truffle Congress
Fall 2022 Truffle Congress

November 11-13, 2022

Hotel Roanoke & Conference Center

Roanoke, Virginia

Live Webinars
Live Webinars

Join us for monthly webinars from truffle experts

Webinars available to NATGA members

3rd Monday of every other month at 1pm (EST)

Latest Webinar
Latest Webinar

Spore Amendments: Truffle Wells, Traps & Trenches

a TRAPI sponsored Webinar

Site Undergoing Updates

The site is undergoing significant structural changes and may be experiencing temporary outages. Please let us know if you notice something not working properly. Thank you for your patience and support.


The North American Truffle Growers Association promotes awareness, growth, and development of the truffle industry in North America, by promoting research, setting standards, sharing information between growers, and educating the public.

Read on


A truffle is the spore-bearing fruit of a fungus. The actual fungal organism is a perennial network of underground mycelium (fungal filaments dispersed in the soil). Unlike mushrooms, truffles develop entirely underground.

Learn about truffles

Upcoming Events

March 20, 2023 @ 1:00 pm EST
Optimal conditions for truffles, using irrigation to expand the range
Register now

More information

Latest Webinar Recordings

Optimal conditions for truffles: Using irrigation to expand the range – TRAPI

Successful production of truffles requires critical information on optimal soil and climate conditions.  These conditions dictate where truffles should be introduced, and the amendments needed to assure adequate yields. In this TRAPI webinar we discuss the optimal conditions for both European truffles and native North American truffles.  Irrigation is a critical amendment to achieve optimal soil moisture and to extend yield potential into arid environments.  We review what little is known about moisture requirements and discuss well-tested methods used to schedule irrigation to achieve target moisture conditions.
Read More "Optimal conditions for truffles: Using irrigation to expand the range – TRAPI"

Spore Amendments:  Truffle Wells, Traps & Trenches – TRAPI

Webinar recorded on 2/20/2023 under the TRAPI umbrella.
Topic discussed:
Life history of Tuber melanosporum.
Spore amendments and truffle mating types.
A grower’s perspective on spore amendments.
Can we breed truffles?
Read More "Spore Amendments:  Truffle Wells, Traps & Trenches – TRAPI"