Vibrans Top is an effective preparation for protecting potatoes from a complex of diseases

Abstract

The use of combined preparations, which combine insecticidal and fungicidal active substances, allows for the protection of potato plants at early stages of development simultaneously from a wide range of pests and diseases. Therefore, the aim of our research was to evaluate the biological efficacy of the insectofungicide Vaybrans Top, SC against a complex of diseases in potatoes under field conditions on a natural infectious background. The study was conducted during the period of 2017-2018. In the experiment, the action of Vaybrans Top, SC was studied in the conditions of the Leningrad, Tambov, and Volgograd regions at application rates of 0,4 l/ton, 0,5 l/ton, 0,6 l/ton, and 0,7 l/ton. The reference drug used in the study was Celest Top, SC. Treatment of tubers with the preparations was carried out before planting. It was found out that the highest effectiveness against the complex of diseases and the highest yield were in the variant with the use of Vaybrans Top, SC at the maximum application rate of 0,7 l/ton.