Observations were conducted in two vineyards comprising disease-resistant (PIWI – pilzwiderstandfähig) grape varieties to analyze the effects of variety on the abundance of selected arthropods. Sampling took place during the 2019 and 2020 seasons. Field data were devoted to the presence of leafhoppers belonging to the Typhlocybinae (Empoasca vitis, Zygina rhamni and Erasmoneura vulnerata) and symptoms of Flavescence dorée. In the laboratory, the presence of leafhoppers and mites was examined on leaf samples. Additionally, the morphology of the abaxial leaf surface was described to identify potential relationships between leaf morphology and phytophagous or predatory mite densities. The data suggest several trends that warrant further investigation.
Nella presente tesi sono state svolte indagini su alcuni artropodi in due vigneti composti da varietà resistenti alle malattie fungine (PIWI – pilzwiderstandfähig). I campionamenti sono stati eseguiti nelle annate 2019 e 2020. Sono stati raccolti dati sulle cicaline appartenenti ai Tiflocibini (Empoasca vitis, Zygina rhamni e Erasmoneura vulnerata) e sull’incidenza dei sintomi di Flavescenza dorata. In laboratorio, è stata analizzata l’abbondanza di cicaline e acari su campioni fogliari. Inoltre, è stata valutata la morfologia della pagina inferiore delle foglie per individuare possibili relazioni tra morfologia fogliare e acari. I dati indicano alcune tendenze che meritano approfondimenti.
Osservazioni sull'artropodofauna in varietà resistenti ai patogeni della vite
MARTIGNAGO, RICCARDO
2024/2025
Abstract
Observations were conducted in two vineyards comprising disease-resistant (PIWI – pilzwiderstandfähig) grape varieties to analyze the effects of variety on the abundance of selected arthropods. Sampling took place during the 2019 and 2020 seasons. Field data were devoted to the presence of leafhoppers belonging to the Typhlocybinae (Empoasca vitis, Zygina rhamni and Erasmoneura vulnerata) and symptoms of Flavescence dorée. In the laboratory, the presence of leafhoppers and mites was examined on leaf samples. Additionally, the morphology of the abaxial leaf surface was described to identify potential relationships between leaf morphology and phytophagous or predatory mite densities. The data suggest several trends that warrant further investigation.File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/81956