Rubus stunt phytoplasma (RS) is widespread in Rubus in continental Europe. The recent introduction of new berry cultivars in Trento province (Northern Italy) prompted us to obtain more information about the spreading of RS and other phytoplasmas in these crops. In late spring/summer 2002 field observations were carried out in different commercial berry fruit crops and in related wild species. Rubus stunt-like symptoms were observed only in few plants of Rubus spinosa cv. Topee and in almost 43% of plants in a blackberry crop of "Lochness" located in the Adige valley. The results confirmed a strict association between the symptoms and the detection of RS phytoplasma; no other phytoplasmas were found. PCR and nested-PCR also failed to detect phytoplasmas in the symptomless plants and in all Macrosteles groups tested. Epidemiological studies are in progress, also on wild blackberries, to detect and eliminate sources of infection.
VINDIMIAN M.E., GRASSI A., CICCOTTI A., POGGI POLLINI C., TERLIZZI F. (2004). Epidemiological studies on Rubus Stunt (RS) in blackberry orchards located near Trento (Italy).. CORNVALLIS : R.R. Martin.
Epidemiological studies on Rubus Stunt (RS) in blackberry orchards located near Trento (Italy).
POGGI POLLINI, CARLO;TERLIZZI, FEDERICA
2004
Abstract
Rubus stunt phytoplasma (RS) is widespread in Rubus in continental Europe. The recent introduction of new berry cultivars in Trento province (Northern Italy) prompted us to obtain more information about the spreading of RS and other phytoplasmas in these crops. In late spring/summer 2002 field observations were carried out in different commercial berry fruit crops and in related wild species. Rubus stunt-like symptoms were observed only in few plants of Rubus spinosa cv. Topee and in almost 43% of plants in a blackberry crop of "Lochness" located in the Adige valley. The results confirmed a strict association between the symptoms and the detection of RS phytoplasma; no other phytoplasmas were found. PCR and nested-PCR also failed to detect phytoplasmas in the symptomless plants and in all Macrosteles groups tested. Epidemiological studies are in progress, also on wild blackberries, to detect and eliminate sources of infection.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.