Mohamed Awad Al-Eryan¹*, Lamya Mohamed Zaghloul Abo Abdalla² and Hanan Mohamed Ramadan¹

¹Department of Applied Entomology and Zoology, Faculty of Agriculture Alexandria University, Egypt ²Plant Protection Research Institute, Sabahia, Alexandria, Egypt

*Corresponding Author: Mohamed Awad Al-Eryan, Department of Applied Entomology and Zoology, Faculty of Agriculture Alexandria University, Egypt.

Received: January 02, 2025; Published: January 13, 2025

Abstract

The European grapevine moth, is considered to be a key pest of vineyards in the Mediterranean countries. The present study was carried out at Nubaria region in Northern coast of Egypt for three successive years, 2017, 2018 and 2019. The farm cultivated with different varieties of grape. Flame seedless variety was selected for the current study and divided into two groups. In the first, trees were covered with transparent plastic sheets (indoor vineyards) for production early grape. In the second one, grape trees left without sheets (outdoor vineyards).

Statistical analysis showed that male flight activity and egg deposition of L. botrana were positively correlated with Growing Degree Days (GDD) through the three successive years in both indoor and outdoor vineyards.

Regression analysis showed a good fit between male moth activity and laid eggs versus GDD in indoor and outdoor vineyards during the three consecutive years. In indoor vineyards, obtained determination coefficient (R²) of male flight activity was 0.32, 0.88 and 0.82 for the three seasons 2017, 2018 and 2019, respectively. While in outdoor vineyards they were 0.57, 0.66 and 0.83 for the three seasons, respectively. In indoor vineyards, R2 of egg laying were 0.34, 0.96 and 0.83 for the three seasons 2017, 2018 and 2019, respectively. While in outdoor vineyards they were 0.89 0.78 and 0.96 for the three seasons, respectively. These models forecast male flight activity or egg laying (Y) by determine GDD (X) during the activity period of L. botrana moths in both covered grape (indoor) and exposed grape (outdoors). In the present study, Applications of temperature predicting models to the study male flight activity and egg laying may help entomologists in assembling effective forecasting systems for planning IPM programs in vineyard ecosystem.

Keywords: Flame Seedless; Growing Degree Days; Models; IPM; Indoor Vineyard; Outdoor Vineyard

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Citation

Citation: Mohamed Awad Al-Eryan., et al. “Forecasting Models of Male Flight and Egg Laying Activities of the European Grapevine Moth Lobesia botrana (Den and Shiff.) (Lepidoptera: Tortricidae) in Vineyards at Northern Coast of Egypt" Acta Scientific Agriculture 9.2 (2025): 28-34.

Copyright

Copyright: © 2025 Mohamed Awad Al-Eryan., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.