Annals of the Entomological Society of America (1998) 91, 661-667

S.J. Castle, T.M. Mowry and P.H. Berger (1998)
Differential settling by Myzus persicae (Homoptera : Aphididae) on various virus infected host plants
Annals of the Entomological Society of America 91 (5), 661-667
Abstract: We examined temporal patterns of settling by apterous Myzus persicae Sulzer on leaves of 3 host plant species that were virus-free or infected with potato leafroll virus (PLRV), potato virus X (PVX), or potato virus Y (PVY). A 60-h exposure period to the choice of leaves was provided in a cylindrical Plexiglas arena that allowed repeated observations through time without disturbance to the aphids. Significantly greater numbers of apterae settled on PLRV-infected Solanum tuberosum (L.) leaves compared with PVX- or PVY-infected leaves, or virus-free leaves. No significant differences among the same virus treatments were observed when the plant hosts were Physalis floridana Rybd. or Datura stramonium (L.) Significant treatment by time effects were observed in the S. tuberosum and D. stramonium experiments only. Nymph counts on the various leaf treatments at the end of experiments corroborated overall patterns of apterae settling. In light of previous work demonstrating the superior performance of M. persicae on PLRV-infected S. tuberosum plants, the current findings are discussed with regard to the nature of the association between M. persicae and the circulative virus PLRV relative to either the stylet-borne virus PVY or the nonvectored virus PVX.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Steven J. Castle

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases
environment - cropping system/rotation

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Myzus persicae	Potato (Solanum tuberosum)
	Potato virus Y	Potato (Solanum tuberosum)
	Potato leafroll virus	Potato (Solanum tuberosum)
	Potato virus X	Potato (Solanum tuberosum)