Gallery Oyster musroom training day, 25.03.2011. on 2011. April 4. Monday 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 Oyster musroom training day, 25.03.2011 at Pilze-Nagy Ltd., Kecskemét, Hungary. 1 2 3 ► Related articles: Opportunities for spent mushroom substrate reuse