Use of <i>Trans</i>-Anethole Against Hop Flea Beetles in Field Conditions
In the present study, the effect of two different formulations (NCH1 and NCH2) of <i>trans</i>-anethole was examined against hop flea beetles, <i>Psylliodes attenuatus</i> in field conditions. Products were applied in different locations in the spring seasons of 2019–2021. In...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
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| Series: | Agronomy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4395/15/6/1311 |
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| Summary: | In the present study, the effect of two different formulations (NCH1 and NCH2) of <i>trans</i>-anethole was examined against hop flea beetles, <i>Psylliodes attenuatus</i> in field conditions. Products were applied in different locations in the spring seasons of 2019–2021. In 2019, 0.5% and 1% concentrations of both formulations were used so that the effective field dose could be determined. Doses of 1% for both formulations were shown to be more efficient. In 2020, experiments with this dose were carried out in two localities in order to select a more suitable formulation of the product (NCH1 vs. NCH2). The NCH1 formulation was shown to be more effective. After application, there was a significant reduction in the number of flea beetles compared to the control (<i>p</i> < 0.0001). On the other hand, no significant difference was found between the non-treated plot and the NCH2 formulation. In the third year of the experiment (2021), it was found that the number of <i>P. attenuatus</i> on plants treated with NCH1 encapsulation was significantly lower than in the untreated control (<i>p</i> < 0.0001). Residues of <i>trans</i>-anethole degraded immediately; thus, the product is suitable for use in the summer to protect the hop cones before harvest. |
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| ISSN: | 2073-4395 |