Gallery 5th Russian Mushroom Days on 2010. May 20. Thursday More in Gallery: Polish Mushroom Days – Pieczarkalia 2017 2017. September 11. Monday Mushroom season is here – conference in Rostov-on-Don 2015. October 30. Friday A visit at Russian Mushroom Days, 2015. 2015. June 23. Tuesday 5th Russian Mushroom Days Related articles: A visit at Russian Mushroom Days, 2015. Mushroom Days a great success Dutch Mushroom Days 2022 cancelled 5th Bio-Fungi Mushroom Days 2010.