Location: Subtropical Plant Pathology ResearchTitle: Host-mediated effects of semipersistently transmitted Squash vein yellowing virus on sweetpotato whitefly (Hemiptera: Aleyrodidae) behavior and fitness
|SHRESTHA, D - University Of Florida|
|MCAUSLANE, H.J. - University Of Florida|
|SMITH, H.A. - University Of Florida|
|DUFAULT, N - University Of Florida|
|COLEE, J - University Of Florida|
|WEBB, S.E. - University Of Florida|
Submitted to: Journal of Economic Entomology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/23/2017
Publication Date: 6/20/2017
Citation: Shrestha, D., McAuslane, H., Adkins, S.T., Smith, H., Dufault, N., Colee, J., Webb, S. 2017. Host-mediated effects of semipersistently transmitted Squash vein yellowing virus on sweetpotato whitefly (Hemiptera: Aleyrodidae) behavior and fitness. Journal of Economic Entomology. pp. 1-9. doi:10.1093/jee/tox161.
Interpretive Summary: Plant viruses may indirectly affect insect vector behavior and fitness via a shared host plant. In this research, we evaluated the host-mediated effects of Squash vein yellowing virus (SqVYV) on the behavior and fitness of its whitefly vector on squash and watermelon. Host-mediated effects of SqVYV infection on whitefly behavior differed on squash and watermelon suggesting the potential for more rapid spread of virus in watermelon fields.
Technical Abstract: Alighting, settling and oviposition behavioral assays were conducted on Squash vein yellowing virus- (SqVYV-) infected and mock-inoculated squash and watermelon plants. Developmental time of immature stages, adult longevity, and fecundity were measured on SqVYV-infected and mock-inoculated squash plants. For adult longevity and fecundity, whiteflies were reared on SqVYV-infected and mock-inoculated squash plants to determine the effects of nymphal rearing host on the adult stage. Differences in the host-mediated effects of SqVYV infection on whitefly behavior suggest that SqVYV may spread more rapidly in watermelon fields.