Thanks to one and all for your comments on this blog and on facebook . I stress a little history with this control and if it does not change the outcome, it is comforting to see that there are people like me who believe that the presence of grass in vineyards is not necessarily a crime of lese-wine "!
Yesterday, I learned that another bio of Beaujolais had been monitoring its vines by CIBAS, followed by a procedure decommissioning. It's starting to do a lot ... I'm waiting for my still new. But whatever the outcome of control, I decided to seek an appointment with the CIBAS to know the reasons which motivated. I admit that the definition of rules and the enforcement of these rules give meaning to the concept of designation. But in hindsight, I think we could prevent growers from inspectors' visit, if only the day before or the same day. So that the grower can be present and interact with the inspector on his farming practices.
Because I read the inspection plan defined by the ODG relied upon by the controller, number of checkpoints are unfortunately open to interpretation. And when the objectivity of the review can not be guaranteed, we need to oppose the subjectivity of the Comptroller of the winemaker, unless you want absolutely the trap!
If I return to the thorny issue of the "file", namely the cultural condition of the vines (leaves and maintenance of soil), the highly subjective interpretation is unmistakable. The inspection plan gives no indication on the control method. It is just writing on the form of the inspection plan, regarding the method to be used by the inspector to ensure the adequacy of the state of the vine to the rules of the appellation, the word "control field", without further explanation that could help in his work ...
One may well suspect in this case, by an inspector to the other, the appreciation of the cultural condition may differ. Some, still imbued with culture "greenery", to use Marc Dalbavie expression of Domaine de la Blanche Lane, consider the presence of "Weeds" as an "anomaly" crop. Others, however, more concerned about the "matter Green, "regards this as an enhancement factor of biodiversity!
For if herbs can in some cases, besides the aspect of" unattractive "which some may find constitute a constraint on the vine, elsewhere they may be her beneficiaries.
one hand, they can cause water stress for the vines, to compete too hard on the feet of vines to cause their decline , cause nitrogen deficiency, factor sluggish fermentations, install a residual moisture, increasing factor risk of frost, or sag, or even help create an ecosystem conducive to the installation pest of the vine.
the other, conversely, they are a factor in improving conditions for the appearance of predators of these pests, the auxiliaries of the vine, they are a factor of soil improvement by their ability to " pollution "as datura stramonium example that purifies the soil loaded with pesticides, datura, which invaded last year one of my plots and has completely disappeared today! These weeds are also involved in improving the lives of soils, ryegrass by the ability their root system to create a pseudo humic clay complex, thistles and creeping roots which contribute to the swivel decompaction soil, legumes for their ability to fix nitrogen .... They can also absorb excess water from waterlogged areas and contribute to improved oxygenation of the root system of vines and thus become partners in improving health of the plant. They limit the erosion. They are an effective means of control of prophylaxis against botrytis. I might add, that leaving the weeds take hold, it prevents the emergence of other herbs germinating later, the competition on the vine could be more damaging than those exercised by the latter. And the list is not exhaustive. We can also say that competing with the vines, grass diminishes the force and makes it less susceptible to fungal diseases such as mildew. Also, it forces him to look deep water which deprives the grass, making it ultimately more years of resistance the water deficit. I spoke recently with a winemaker Guy Blanchard's bio Maconnais. He told me that this year the most beautiful vineyards in him are those grass. But he started grassing nine years ago ...
And this weed probably many other "virtues" (same etymology as "green"? :-) I do not know.
I had a few months ago an exchange by mail with a botanist, an expert in plant messicoles, these "weeds" growing in cereal crops. Due to its specialty, I ventured to ask his opinion on what was best done in the maintenance of soil from one of my plots where a small ryegrass was installed in early spring . I wondered about the relevance of a plow which would have destroyed so that it seemed more beneficial than harmful to my vineyard.
I reproduce here excerpts from my email query and the answer he had been kind to me:
My question:
"... I am now in a critical period, the passage of the flower of the vine, and I wonder if I should mow my ryegrass which can create areas of high humidity inflorescences and disrupt the drop caps. But in doing so, I fear disrupt the reseeding of this little ryegrass that seems particularly suited to what I want to do (limited competition from other weeds and does not seem too "pull" on the ground, see the current strength of my vines that is close to the "normal" surrounding vineyards ... "His answer
:
" ... This ryegrass is the result of the stock Soil seed because you did not sow, so your response will not limit or slightly next year its recurrence. By cons for years if you perform the same manipulation (mowing at the time) you will introduce a practical selection that will determine the presence of other species and remove it. Similarly the absence of tillage will bring out biennial rooting deeper and greater biomass, large in scale so more problematic for the health aspects of the vine (residual moisture, competition).
The application of a mosaic of practices (mowing, tillage, seeding) may allow a relative heterogeneity beneficial: that is to say a very unstable system with "opportunities"
very variable (dormancy, climate) combined with voluntary actions decided ... "
I leave you to ponder his answer. It shows in any case it is difficult for an inspector of the INAO to ensure the relevance of cultivation of wine! be added there is absolutely no evidence that the herb can be harmful in the end, quality wine, and this is not a technicality! We can even legitimately ask the opposite question, though a friend told me that organic sow plants could transmit taste to the wine ... So I took special care to remove this type of weed. You never know!
I leave you, I still have a number to build to tear into my closed!
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