Two french books on truffles


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“La truffe : De Provence et d’ailleurs”
Bernard Duplessy y Franck-Alexandre Rozet. 2010. ISBN 978-2-7449-0880-4. 16,34€

Excellent book for anyone who wants to learn the culture of the French Provence truffles, not as technical, as full of curiosities about the truffle, markets, the way the caveurs harvest them, and even the influence of the moon on their growth. Packed with unique pictures and old postcards of the area. As I like to say: you’re losing money if you don’t buy it!

Comment expliquer la chute de production de la truffe du Périgord?: Eléments d’analyses de la place du Tuber brumale dans le déclin de la productio”
Chedozeau, Nicolas; 2011. ISBN 978-613-1-59685-8. 37,05€

The second book, examines the decline of black truffle due to the proliferation of Tuber brumale in France. Something similar is happening in Spain with the advance of summer truffles against the black truffles in so many regions.
French guys see Tuber brumale as a serious problem, as it contaminates over 30-50% of the Perigord truffle plantations. The truth is that brumale is bloody aggressive, as in the nursery you can get the same levels of mycorrhizal infection using 10 times less brumale inoculum than of melanosporum. Here come most of contaminations in those orchards, right from the nursery stage and the lack of analysis of the truffles used for the inoculum.
We have some agreements with the spanish truffle growers associations, and analyzing their orchards we observed that 20% of the plantations of 3-5 years, have brumale in some regions.
The findings of this study are:
-Brumale has occupied the ecological niche of melanosporum, which has been degraded by soil ploughing and lost of traditional practices (no grazing neither charcoal production, etc.), all related to the poor adaptability that the black truffle has to changes due to its low genetic diversity.
– Brumale grows better on closed canopy and shaded woodlands. Results that we noted in our studies of truffle inoculations on hazelnut orchards.
– Avoid poor draining soils, as any excess of moisture conditions will be favorable to brumale. With a smooth transition between soil layers and a fissured bedrock.
– Avoid hazel and hornbeam (in Spain we almost never use this tree), as Quercus ilex and faginea or pubescens are more faithful to the melanosporum mycorrhization.
– Avoid dense plantings, especially in deep soil where the tree will develop too much.
– Limestone amendments do not help to prevent brumale once it is in your orchard.

As you may see, nothing new in this book of 2011 by the 37 €! it is rather a review of several works done in Cahors station and whose several manuals are really worthwhile: http://station-truffe. pagesperso-orange.fr/plaquettes.htm

All the best,
Marcos S. Morcillo

About trufflefarming

CEO of Micofora. Truffles and edible wild mushroom science and farming. Researcher, truffle farmer & mycologist
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