Using yeast walls (Cerevisane) to fight fungal diseases
To combat mildew and powdery mildew, farmers can use a product based on the cell walls of a yeast well known to winemakers: Saccharomyces cerevisae. This product based on a natural substance, here a yeast, acts as a plant defense stimulator and is therefore generally used preventively, in combination with fungicides[1].
How does it work?
Contact with Cerevisane activates a cascade of cellular signals in the plant and stimulates its natural defenses. Indeed, the yeast cell walls have the ability to mimic an attack by mildew or powdery mildew when sprayed on the foliage of plants[2].
Used in combination with copper or sulfur at reduced doses, this product significantly reduces the IFT[1]:
- Under low mildew pressure and early in the season: Cerevisane allows a reduction of 1.17kg of copper used, while maintaining the same level of effectiveness.
- Under low mildew pressure and after flowering: Cerevisane allows a reduction of 1.26kg of copper, while maintaining the effectiveness of the classic copper program.
Benefits
- Broad spectrum of action on several diseases[3]
- Preventive solution
- Integrated pest management
- Usable in Organic farming
- Modulation of doses of conventional treatments (copper, sulfur)
Limitations
- Plant Defense Stimulators require regular reapplications to maintain optimal activity of defense genes[1]
Cost
€38/ha (for a dose of 0.25kg/ha)
Commercial solutions
Find commercial solutions containing Cerevisane here.
Sources
- ↑ 1.0 1.1 1.2 Contrat de Solutions, online, Use of a Plant Defense Stimulator to fight the main diseases (mildew, powdery mildew, botrytis) of the vine.
- ↑ Viti Veille, Mildew, powdery mildew: Saccharomyces is also useful for the vine.
- ↑ Agrauxine, Romeo
Appendices
Est complémentaire des leviers
