Euphytica (2002) 125, 305-315

P.R. Ellis, S.J. McClement, P.L. Saw, K. Phelps, W.E. Vice, N.B. Kift, D. Astley and D.A.C. Pink (2002)
Identification of sources of resistance in lettuce to the lettuce root aphid, Pemphigus bursarius
Euphytica 125 (3), 305-315
Abstract: In a series of glasshouse and laboratory experiments, lettuce varieties and wild Lactuca species were screened for resistance to the lettuce root aphid, Pemphigus bursarius (Ron.). Several new sources of resistance to P. bursarius development and survival were identified. Extremely high levels of resistance were found in the wild species L. saligna, L. perennis and L. virosa. Resistance was also identified in the lettuce variety Grand Rapids. This resistance is controlled by one or two genes. At least one of these genes is not allelic to the existing Lra gene. Grand Rapids therefore represents a new source of resistance to P. bursarius.
(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): Neil B. Kift

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pemphigus bursarius	Lettuce (Lactuca)