Fruit growing
and viticulture of South Russia

Annotation

Monitoring phytosanitary studies have shown differences in the prevalence and harmfulness of the European grapevine moth on vine plantations in the Rostov region in 2021 and 2022. Under favorable conditions for the development of the pest, yield losses from its impact on the generative organs of grapes can reach 40%, and the damage caused by it can contribute to the development of mycoses. A significant increase in the first generation of male butterflies was noted in 2022 compared to 2021. In our opinion, the increase in the number of the pest was due to favorable conditions for the wintering forms of the European grapevine moth. In the autumn-winter period, the sum of negative temperatures was 2.4 times less than the long-term average norm. In 2021, the second generation of the pest was the most numerous, in 2022 � the first, which can be explained by the influence of meteorological factors, especially air humidity. In particular, during all phases of the growing season in 2021, air humidity was above 60%. The most favorable year for the development of the third generation of the European grapevine moth was 2021, as evidenced by the largest number of pest males in pheromone traps. To reduce the harmfulness of the European grapevine moth, protective measures were taken against the second and third generations of the pest. For this purpose, the insectoacaricide Kinfos (active ingredient: dimethoate + beta cypermethrin 300 + 40 g/l) was used, the application rate was 0.4-0.5 l/ha. The use of the insecticide on the varieties Cabernet Sauvignon, Sibir'kovyy, Kristall, Tsvetochnyy contributed to a significant reduction in the prevalence of the pest, compared with untreated plantations. The listed varieties are characterized by the highest population of the pest. On the varieties Baklanovskiy, Denisovskiy, Kaberne severnyy, Kunlean', Pervenets Magaracha, Preobrazheniye revealed the least distribution of european grapevine moth.