Be careful during high temperatures and dry climates favorable to the development of this mite.
Promote the installation and development of natural predators that are harmless to the vine, such as Typhlodrome mites ( Typhlodromus pyri for the Atlantic and the northern regions) and coast Kampimodromus aberrans for other regions. These predators allow natural regulation of the population of P . ulmi .
Use acaricides in case of heavy infestation ( e-phy ), in spring when there are more than 70% of leaves colonized by mobile forms of the mite, and more than 30% in summer. However, be sure to use neutral or slightly toxic products on natural predators.
Burn the pruning wood that houses the winter eggs.
In winter, count the buds occupied by eggs; if the infestation is heavy, it is possible to initiate an early treatment in the spring during the hatching of winter eggs.
Crops