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Biological parameters of grape phylloxera, Daktulosphaira vitifoliae, on local grapevine varieties in central Syria – Implications on their susceptibility

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Biological parameters of phylloxera local strains as well as infestation were studied on Syrian grapevine varieties including Baladi, Salamone, Karawane, Hafarzale, Gharbe and the American resistance rootstock (ARR-B41) (Vitis vinifera x Vitis berlandieri). Root artificial infestation method revealed significant differences in phylloxera population between the majority of tested varieties comparing to the ARR-B41 rootstock. Hafarzale and Karawane have shown the lowest population of grape phylloxera, with a similar level of resistance to rootstock ARR-B41. Furthermore, Salamone and Gharbe are more conducive to grape phylloxera reproduction. Field investigation has shown significant differences between the local varieties and ARR-B41 in terms of the average number of galls “nodosities”. Overall, Hafarzale and Karawane tended to form significantly fewer galls than the other varieties.

eISSN:
2732-656X
Langue:
Anglais
Périodicité:
2 fois par an
Sujets de la revue:
Life Sciences, Plant Science, Zoology, other