Dry Summer Deters Bavarian Mushroom Growth
Munich, August 29 – The dry summer has significantly impacted mushroom foraging in Bavaria, leaving collectors with largely empty baskets. While the situation is currently bleak, there’s hope for recovery if weather conditions improve.
Typically, mushroom enthusiasts would be returning from forests with baskets full of chanterelles, porcini, and bay boletes. However, many are finding little to no success. “There has been hardly any rain; it has been extremely hot,” stated Christoph Hahn, President of the Bavarian Mycological Society, an organization for mushroom seekers and researchers. The extreme summer has resulted in far fewer mushrooms than usual.
Technically, mushrooms are not entirely absent from Bavarian forest soils this year. Mushrooms form extensive underground networks; what grows above ground and can be eaten is the fruiting body. “They first need to regenerate and don’t have much opportunity to form fruiting bodies,” Hahn explained. Mushrooms require ample water in the soil to recover well, but the question remains how long this will take.
Poison Control Center Sees Fewer Calls
The sluggish start to the season is also evident at the Poison Control Center of the Technical University of Munich. In the past two years, the center received between 380 and 650 inquiries annually regarding mushroom poisoning. This year, however, the number is “in the low double digits,” according to Florian Eyer, head of the center. If the dry conditions do not persist, a rise in calls is anticipated between mid-September and early October.
Generally, poisonous mushrooms are affected by the drought just as much as edible ones. However, certain species have an advantage, such as the False Field Mushroom (Agaricus xanthodermus), which has migrated from the Mediterranean region and can tolerate periods of low moisture. It can easily be confused with the edible Field Mushroom (Agaricus campestris). The similarity is so great that some mushroom consultants no longer classify specimens of this species as harmless, Hahn reported.
During such consultations, collectors can present their findings to avoid accidentally bringing home poisonous mushrooms. This also reflects how slow the season is: many mushroom consultants currently have little to do, Hahn noted. “Where 30 people used to come, now there are two.”
Mushrooms that live in symbiosis with trees are particularly affected. Because their hosts suffered drought damage over the summer, less water is available to the mushrooms. Other species, like the Field Mushroom, have it slightly easier.
Advice for Collectors: Leave Small Mushrooms Alone
Hahn advises collectors to leave small specimens alone. Small mushrooms are more difficult to identify, increasing the risk of confusion. “One should simply tell oneself: at least it was a nice walk in the forest.”
If there is abundant rain soon, mushroom populations are expected to recover quickly. However, some species take longer than others. The situation is also better in areas like the Alpine foothills due to more precipitation than in Franconia. According to Hahn, the upcoming mushroom year is promising, as mushrooms could then form many fruiting bodies again – unless another dry summer precedes it.
