Uman National University | today: 06/27/2025
| Author(s) | Мельник Т. В., , , | ||
|---|---|---|---|
| Category | The Agronomy | ||
| year | 2025 | issue | Issue 106 Part 1 |
| pages | 449-454 | index UDK | 632.7:634.11(477.84) | DOI | 10.32782/2415-8240-2025-106-1-449-454 (Link) |
| Abstract | The article presents the results of a study on the species composition and harmfulness of leaf-mining moths (Lepidoptera: Gracillariidae, Nepticulidae) in apple orchards under the conditions of Ternopil region during 2022–2024. The dominance of Lithocolletis pyrifoliella Grsm. was established, accounting for 65% of the total structure of the leaf miner complex. The population dynamics of the pests were found to depend on agroclimatic conditions during the growing season. The effectiveness of integrated plant protection measures was evaluated, including the use of pheromone traps, biological preparations, and agrotechnical methods. The results are of practical importance for the development of regionally adapted strategies for protecting apple orchards from leaf-mining pests. As a result of a three-year study (2022–2024) in apple orchards of Ternopil region, it was found that the dominant species among mining moths is Lithocolletis pyrifoliella Grsm., whose share in the total number of pests was 65.0%. Other species – L. blancardella, Leucoptera malifoliella, Lyonetia clerkella, Argyresthia conjugella – had a significantly lower number and showed limited harmfulness. It was found that the biological features of the development of mining moths are closely related to the weather conditions of the growing season. The most favorable for their development were years with warm springs and uniform moisture in the first half of summer. In particular, in 2024, the highest number of Lithocolletis pyrifoliella was recorded – 75.8%, which coincided with a moderately warm spring and high humidity in June. The results obtained have practical value for the development of regionally adapted apple orchard protection systems, including early diagnosis, seasonal monitoring of pests, and the application of integrated protection measures in accordance with harmfulness thresholds. | ||
| Key words | apple tree, leaf-mining moths, pests, integrated protection, Ternopil region, Lithocolletis pyrifoliella | ||