[en] This study investigated the transmission efficiency of Potato leafroll virus (PLRV) by four potato colonizing aphid species, Myzus persicae, Macrosiphum euphorbiae, Aphis gossypii and Aphis fabae, reported from leaves and yellow water trap. Physalis floridana was used as a test plant for virus transmission. DAS-ELISA was used for virus screening of samples as well as virus detection on the test plant after transmission experiment. A 2-h period was sufficient for the tested aphids to acquire PLRV virions. However, a difference in the transmission potential occurred according to the aphid species. The highest potential was recorded for M. persicae and M. euphorbiae, at 90 and 80%, respectively. For the first time, the study revealed the PLRV transmission efficiency of A. fabae, estimated at 50%. The lowest potential rate of 30% was recorded for A. gossypii. This study highlights the PLRV transmission capacities of four potato colonizing aphids suspected to play a key role in the spread of PLRV in potato seed production sites.
Disciplines :
Entomology & pest control Agriculture & agronomy
Author, co-author :
Khaled, Wafa; Plant Protection Laboratory of the National Institute of Agricultural Research of Tunisia (INRAT), University of Carthage, Ariana, Tunisia ; National Institute of Agronomy of Tunisia (INAT), University of Carthage, Tunis, Tunisia
Ben Fekih, Ibtissem ; Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs ; National Institute of Agricultural Research of Tunisia (INRAT), University of Carthage, Tunisia > Plant Protection Laboratory
Nahdi, Sabrine; Plant Protection Laboratory of the National Institute of Agricultural Research of Tunisia (INRAT), University of Carthage, Ariana, Tunisia ; Arid Regions Institute (IRA), Medenine, Tunisia
Souissi, Rebha; Plant Protection Laboratory of the National Institute of Agricultural Research of Tunisia (INRAT), University of Carthage, Ariana, Tunisia
Boukhris-Bouhachem, Sonia; Plant Protection Laboratory of the National Institute of Agricultural Research of Tunisia (INRAT), University of Carthage, Ariana, Tunisia
Language :
English
Title :
Transmission Efficiency of Potato Leafroll Virus by Four Potato Colonizing Aphid Species in Tunisian Potato Fields
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