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Can mushrooms grow back on ash?

No mushroom outbreaks after the outbreak of summer fever. “This is especially true of the burned area. This season is hopeless,” Séverine complains to Origne. However, a row of oaks, the best friends of porcini mushrooms, surrounds his property. “They too are burned. I have the impression that this has completely changed the balance on the pitch. »

Mycologists investigate

In the spared plots, the harvest is not terrible in the south of the Gironde either. “It is difficult to know whether this mushroom deficit is related to the fires or more generally to the summer drought,” wonders this Landiras collector. Mycologists of the Linnaean society of Bordeaux are currently looking into the matter. They assure “that there are still some specimens in the burnt forest”. They continue their investigations before sharing their conclusions.

“There are few cars on the side of the road. The burnt forest is occupied by forester cars. The conditions are not at all suitable for walking”

“Within the perimeter of the fire are patches of full crimson and islands spared. It is not the same if the fire has penetrated deep into the ground. In this case, it’s better to look elsewhere», advises Gérard, a lover of Saint-Symphorien. The flames and high temperatures deconstructed the first centimeters of soil over large surfaces.

A sign does not deceive according to the mayor of Guillos, Mylène Doreau: “There are few cars on the side of the roads. The burnt forest is occupied by forester cars. The conditions are not at all suitable for walking. The ban on hunting in these plots also reduces the chances of tracking.

The morel loves ash

“Mushrooms are connected to trees. If they die, there will definitely be consequences,” lies Michel Pujol, Girondin mycologist, putting it into perspective: “We will have to wait until next spring to draw any conclusions. »

The observations were carried out in Corsica in the pine forests, a few months after the passage of the fire. The mushroom push has been completely changed. The species were almost absent during the autumn following the fire. But the spring waves have been impressive. The morel, for example, loves the undergrowth invaded by ash. Michel Pujol has already observed this phenomenon. “The ashes fertilize the soil. »

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