Journal of Phytopathology - Phytopathologische Zeitschrift (1996) 144, 272-276

J. Comas, X. Pons, R. Albajes and R.T. Plumb (1996)
Barley yellow dwarf luteovirus (BYDV) infectivity of alate aphid vectors in northeast Spain
Journal of Phytopathology - Phytopathologische Zeitschrift 144 (5), 272-276
Abstract: Rhopalosiphum padi and Sitobion avenae alates were collected from colonised winter cereals and maize in N.E. Spain and fed on young wheat plants for 7-10 days in the glasshouse. Then, aphids were killed and the plants on which aphids reproduced were kept in the glasshouse for 30-40 days. ELISA of infested plants was made using polyclonal and monoclonal antisera against PAV-, RPV-and MAV-like isolates. In autumn and spring, MAV serotypes were transmitted by S. avenae and R. padi, mainly in mixed infections with PAV serotypes. This possibly explains the high frequency of MAV-like isolates and their previously recorded year-to-year stability in maize, grain and forage winter cereals and cereal volunteers. PAV-like isolates were rarely transmitted by S. avenae and its spread thus depends almost exclusively on R. padi. These results confirm the importance of forage cereals and cereal volunteers as virus sources for winter cereal infection in the autumn, and the latter as a source of BYDV for maize in spring.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Xavier Pons, Ramon Albajes

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Luteovirus mavhordei	Wheat (Triticum)	Spain (continental)
	Sitobion avenae	Maize/corn (Zea mays)	Spain (continental)
	Sitobion avenae	Wheat (Triticum)	Spain (continental)
	Rhopalosiphum padi	Maize/corn (Zea mays)	Spain (continental)
	Rhopalosiphum padi	Wheat (Triticum)	Spain (continental)