In 1992 we started to study the epidemiology of TYLCV in Sardinia and the distribution of its vector, the whitefly Bemisia tabaci, in Italy. Field surveys were conducted to check both wild and coltivated plants for the presence of both the vector and the virus. B. tabaci was fond on 9 wild and 6 cultivated species, besides tomato. None of the wild species was found naturally infected by TYLCV, but Solanum nigrum could be infected experimentally developing clear leaf cnrl symptoms. The distribution of B. tabaci was studied both by direct surveys and questionnaires; until now, in open fields and in greenhouses, B. tabaci has also been fomd in Liguria, besides Sardinia, Sicily and Campania. In Lombardy, Emilia Romagna and Tnscany the whitefly seems to be limited to green-houses.
Ne1 1992 è iniziata ma indagine sulia epidemiologia di TYLCV in Sardegna e s d a disîribnzione del suo vettore, I'aleorodide Bemisia tabaci, in Italia. Sono state condotte indagini in campo e in serra per verificare la presenza del vettore in piante spontanee e coltivate. B. tabaci è stata reperita su 9 specie spontanee e 6 coltivate, oltre al pomodoro. Nessuna pianta spontanea è stata trovata naturalmente infetta da TYLCV, ma Solanum nigrum è stato infettato sperimentalmente e ha mostrato chiari sintomi di arricciamento fogliare. La disîribuzione di B. tabaci in Italia è stata studiita sia con indagini diiette sia con qnestionari; fmora I'aleurodide è stato trovato sia in serra che in pieno campo in Li& oltre che in Sardegna, Sicilia e Campania. In Lombardia, Emilia Romagna e Toscana B. tabaci è stata reperita soltanto in serra.
Indagini epidemiologiche sul virus dell'accartocciamento fogliare giallo del pomodoro (TYLCV) in Italia.
BOSCO D;CACIAGLI P;NORIS;
1993
Abstract
In 1992 we started to study the epidemiology of TYLCV in Sardinia and the distribution of its vector, the whitefly Bemisia tabaci, in Italy. Field surveys were conducted to check both wild and coltivated plants for the presence of both the vector and the virus. B. tabaci was fond on 9 wild and 6 cultivated species, besides tomato. None of the wild species was found naturally infected by TYLCV, but Solanum nigrum could be infected experimentally developing clear leaf cnrl symptoms. The distribution of B. tabaci was studied both by direct surveys and questionnaires; until now, in open fields and in greenhouses, B. tabaci has also been fomd in Liguria, besides Sardinia, Sicily and Campania. In Lombardy, Emilia Romagna and Tnscany the whitefly seems to be limited to green-houses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
