Heliococcus bohemicus Sulc is very frequently found in vineyards in Northern Italy, where grapevine leafroll is widespread. Grapevine leafroll-associated virus 1 (GLRaV-1) and Grapevine leafroll-associated virus 3 (GLRaV-3) are also quite frequently observed, often in association with Grapevine virus A (GVA). The capacity of the mealybug to transmit these viruses to vine was therefore evaluated. Virus-free insects were fed on infected vines and then transferred to healthy test-plants. GLRaV-3 was transmitted to two out of 77 inoculated test-plants and GVA to one out of 38; GLRaV-1 was not transmitted. This is the first report of GVA transmission by H. bohemicus and the first report of the capacity of this mealybug to transmit GLRaV-3 to grapevine in Italy.

Transmission of Grapevine virus A and Grapevine leafroll-associated virus 3 by Heliococcus bohemicus / A. Zorloni, S. Prati, P.A. Bianco, G. Belli. - In: JOURNAL OF PLANT PATHOLOGY. - ISSN 1125-4653. - 88:3(2006), pp. 325-328.

Transmission of Grapevine virus A and Grapevine leafroll-associated virus 3 by Heliococcus bohemicus

A. Zorloni;S. Prati;P.A. Bianco;G. Belli
2006

Abstract

Heliococcus bohemicus Sulc is very frequently found in vineyards in Northern Italy, where grapevine leafroll is widespread. Grapevine leafroll-associated virus 1 (GLRaV-1) and Grapevine leafroll-associated virus 3 (GLRaV-3) are also quite frequently observed, often in association with Grapevine virus A (GVA). The capacity of the mealybug to transmit these viruses to vine was therefore evaluated. Virus-free insects were fed on infected vines and then transferred to healthy test-plants. GLRaV-3 was transmitted to two out of 77 inoculated test-plants and GVA to one out of 38; GLRaV-1 was not transmitted. This is the first report of GVA transmission by H. bohemicus and the first report of the capacity of this mealybug to transmit GLRaV-3 to grapevine in Italy.
ampelovirus ; mealybug ; virus-vector ; vitivirus ; Heliococcus bohemicus
Settore AGR/12 - Patologia Vegetale
JOURNAL OF PLANT PATHOLOGY
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/30636
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