Keywords
Abstract
The emergence of new economically significant species of phytophagous invaders is one of the factors that
destabilize phytosanitary condition of agrocenoses, including vineyards of the Southern Russia. The research aimed at studying the biological effectiveness of modern preparations in the protection of Crimean vineyards from adventitious species of Japanese grape leafhopper in order to expand the range of insecticides that effectively regulate the number of this species is relevant. According to the results of a long-term (2015, 2018, 2020–2022) study of insecticides from different chemical groups, the following preparations are recommended for a wide use in vineyards: Lannat 20 L, SC (1 l/ha), Voliam Flexi, SC (0.5 l/ha), Movento Energy, CS (0.5 l/ha), Acardo, CCS (0.4 l/ha). They provide biological efficiency in protection against Japanese grape leafhopper at the level of 92–100%, 90–100%, 100 %; 53–93%, respectively. The level of biological effectiveness of insecticides Sarmat, WSC, 8 ml/10 l of water (100%), Aktara, SC, 0.1–0.3 kg/ha (70–100%), Alatar DoubleStrike, CE, 2 ml/5 l of water (83–90%) also indicates the feasibility of their use in vineyards in order to reduce the numerical strength of this phytophage.