Viticulture

Biocontrol and Biostimulation for Viticulture

Limiting phytosanitary inputs while maintaining productivity and superior harvest quality is a major challenge for the wine industry. In particular, it involves developing practices through complementary or alternative solutions that deliver technical and economic performance for winegrowers.
In the face of fungal diseases such as mildew, powdery mildew, botrytis and ESCA/BDA, biofungicides derived from microorganisms are effective tools for deploying new integrated protection strategies in the vineyard. In addition, biostimulants help to promote flowering, secure fruit set and guarantee optimal development of the bunches.

Grapevine wood diseases (Esca, Black Dead Arm, Eutypiosis)

A major preoccupation for winegrowers, grapevine wood diseases jeopardize the long-term survival of vineyards. Agrauxine, which antagonizes numerous pathogens present in the environment of pruning wounds, is an effective means of keeping more healthy vines in production, reducing vine mortality, limiting complantation and thus maintaining high yield potential. In addition, Agrauxine actively participates, along with the entire industry, in numerous research projects (prophylaxis, genetics, active substances, etc.) to improve and develop new, complementary methods.

The main plant diseases (Mildew, Botrytis, Powdery Mildew)

Fungal diseases are highly detrimental to the development of the vine, and require an appropriate treatment program to contain the pressure of the pathogens present. This guarantees yield and berry quality at harvest. Limiting the use of chemical substances and the presence of residues in grapes is a major objective for winegrowers - see Ecophyto 2 plan.

Certain micro-organism-based products are particularly well-suited to these constraints, and fit naturally into conventional vine protection programs.

Biostimulants, vine boosters

Biostimulant products derived from microorganisms such as yeast have been developed for their ability to increase yield and harvest quality. They act directly on physiological development processes and complement conventional fertilization by providing new technical advantages. These technologies act on :

• Bunch weight and homogeneity

• Post-veraison berry coloration

• Berry sugar levels (linked to future alcohol content)

• Organoleptic qualities of wines

Certain biostimulation products have the ability to mitigate the impact of abiotic stresses at sensitive stages of the vine, leading to imbalances during flowering and fruit set. These events cause berry heterogeneity on the bunch, resulting in yield loss and inferior harvest quality.