The mushroom season starts in May with the False morel (Gyromitra esculenta). The Trumpet chanterelle (Craterellus tubaeformis) ends the season in the autumn; they can be found in spruce forests as late as November. In a good mushroom year, more than 16 million kilos of edible mushrooms are picked from forests; in other years the amount may be as low as just over three million kilos.
Of the Finnish macrofungi, some two hundred are edible mushrooms and 31 have been approved as tradeable mushroom species. However, only around 5–10 most common species are used for food.
During the summer, The Natural Resources Institute Finland (Luke) prepares several mushroom yield forecasts that take into consideration factors that impact the mushroom yield. These factors include the amount of rain, the temperature during the growth season, the ratio of wood species in the forest, the age of the forest, the density of the forest and the tree shadow. Other factors include the thickness, moisture and composition of the humus and moss layers and forest litter. Luke’s expertise is also often required when information is needed to resolve a case of mushroom poisoning.
Information for gourmets, ramblers, professional pickers and export companies
Research data and mushroom crop forecasts are mainly used by domestic mushroom pickers, those picking mushrooms for sale, and companies involved in buying and selling mushrooms. More and more people require this information as the mushroom trade is booming. In addition to organised trade, mushrooms are sold in market places and directly to restaurants, schools, institutional kitchens and retailers. In recent years, Penny bun boletes (Boletus edulis) have been the most significant mushroom commercially and they are also exported.
NEW BROCHURE: Natural products to boost the North Karelian bioeconomy
The new colourful 12-page brochure provides information about the commercial use of natural products, the berry and mushroom markets, the market for natural products, picking natural products on the European level, everyman’s rights, crop forecasts, etc.
Picture on top of the page: Merja Lindroos, Luke.