What can one do if PPAs (Plant Protection Agents) underperform (do not work effectively), and diseases and pests continue to develop?

30 March 2021

Primarily, quality control of spraying water must be in place (it should be within the limits of рН 4–5.5, and Ec (salinity) should not exceed 1.5.

Secondly, the process must be in strict compliance with the application guidelines for PPAs (always original ones and with unexpired validity)

Thirdly, integrated system of protection should be used — biopreparations and entomophages, pheromone and sticky traps

Fourthly, permanent surveillance of disease incidence and pest infestation must be in place, and preventive work must be done, without waiting substantial spread of pathogens.