How to control grapevine erineosis: sublimed sulphur as a comprehensive solution for vineyards

• Spring brings a significant increase in the risk of grapevine erineosis outbreaks.
• In response to this problem, sulphur applied by dusting, and particularly in sublimed sulphur form, becomes an ideal solution for tackling this pest.
• Azufre Sublimado Flor Pallares is therefore a highly versatile solution for the comprehensive protection and treatment of grapevines throughout virtually all stages of their growth and development.

With the arrival of spring and the gradual increase in temperatures, vineyards located in the warmer and drier regions of our country are more exposed to the presence and proliferation of grapevine erineosis (Calepitrimerus vitis).

This pest, caused by a small mite that affects red grape varieties and young vineyards more severely, mainly appears during budbreak (phenological stage B). It causes abnormal plant growth, resulting in shortened internodes and a tendency for the leaves to curl upwards, with small necrotic areas and spotting. This can lead to significantly smaller bunches and, consequently, a drastic reduction in yield.

When this occurs, or when there is a clear risk of its presence or proliferation, the application of sulphur by dusting is generally recommended, as is also the case for controlling powdery mildew and other diseases.

However, although sulphur in its various forms is particularly effective as a natural acaricide, it is important to bear in mind that the generation of sulphur vapours when micronised sulphur is applied by dusting is optimal when ambient temperatures are above 22 °C.

For this reason, during the spring months, when temperatures are milder and the risk of grapevine erineosis is precisely at its highest, the most advisable option is to use the sublimed sulphur offered by AFEPASA through Azufre Sublimado Flor Pallares.

In addition to promoting the generation of sulphur vapour at lower ambient temperatures, Azufre Sublimado Flor Pallaresprovides greater adhesion to the plant thanks to its electrostatic charge and amorphous microstructure. This facilitates its natural attraction to the plant canopy and significantly reduces the amount of product deposited on the soil.

Ultimately, sublimed sulphur offers much greater versatility for use in grapevine cultivation, allowing comprehensive treatment throughout virtually all stages of development, from the early stages, when it can be used to control grapevine erineosis, to periods of higher temperatures when action against powdery mildew in vineyards is required.