(1) Villafranchiens : This formation corresponds, on the right bank of the Hérault, to the oldest alluvial fluviatiles of which there remain only shreds of terrace dissected by erosion and staged between 90 and 60 meters above the current course . South of the Tongue located above the marl at Potamides basteroti , it forms an immense glacis which corresponds to the end of the backfilling started in the Pliocene. These alluviums consist mainly of siliceous pebbles, very rounded: abundant white quartz, quartzites, quartz shales and rare Lydian; they are devoid of basaltic pebbles. These pebbles are associated with gravels and clayey-sandy, reddish silts and bear witness to an essentially Cévennes origin.

This fluvial formation which covers the gullied surface of the Miocene plateaus and follows the pliocene filling and prior to the basalt flow., It is very clearly separated from the other allusions and is located very west of the current course of the Hérault its thickness is large, about 8 to 12 meters. It was found south of Montblanc at the Château de Coussergues seaweed sheet in brackets in the tools consolidate notebook, a jaw with molars, attributed by Ch., To Mastodon arvernensis which allows by extinction to fix the age of the whole set of tools for the trays (source).

(2) Sexual Confusion : This involves breaking the reproductive cycles of pests, such as the grapevine, and maintaining the balance between parasite populations and their predators. Several control techniques are appearing, other than traditional insecticides, in order not to pollute the environment and introduce a risk for the winegrower. One of these methods is sexual confusion , saturating the atmosphere with pheromones capable of causing confusion for insects and thus limiting mating.

The caterpillar of the Eudemia of the vine is a pest also known under the name of worm of the cluster or of budworm as are also the Cochylis ( Eupoecilia ambiguella ) and the Eulia ( Eulia ministrana ) (Wikipedia).