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Diseases

Potato leafroll virus

Potato leafroll virus

Potato leafroll virus is a dangerous viral disease that causes leaf rolling, tuber flesh necrosis, and a significant reduction in yield. It is transmitted primarily by green peach aphids and infected tubers.

Mentioned in descriptions 1 497 varieties reference book.

Potato leafroll virus manifests through characteristic deformation of leaf blades. In secondary infection transmitted via infected tubers, the lower leaves roll into a 'tube', become stiff and leathery, sometimes acquiring a reddish-purple hue. Primary infection acquired during the current season affects young upper leaves, which point upwards and have a pale green hue; meanwhile, net necrosis of the flesh is frequently recorded in the tubers.

The spread of the disease depends on the activity of vectors, in particular the green peach aphid, as well as weather conditions. Dry and hot weather contributes to more intense visual manifestation of symptoms. The virus persists in infected seed material, which leads to progressive variety degradation and a decrease in crop quality, including a drop in starch content and tuber marketability.

The assessment of variety resistance during variety testing is based on a combination of visual field recording of infected plants and laboratory diagnostic methods, such as ELISA and PCR, which allow for the detection of latent infection. Breeding is aimed at developing field resistance, which limits pathogen accumulation in plant tissues or reduces their attractiveness to insect vectors.

Sources10

Breakdown by crop

Potato leafroll virus 287 Tomato yellow leaf curl virus 216 Bean leafroll virus 14 Lettuce necrotic leaf curl virus 7 Squash leaf curl virus 4 Grapevine leafroll disease 4 Cucumber leaf curl virus 3 Cotton leaf curl disease 3 Bean leaf roll virus 3

Found in these crops

Potato 288 Pea 16 Grapevine 6 Common grape vine 3 Apricot 2 Olive 2 Common bean 1 Palm lily 1 Maize 1 Durum wheat 1 Festulolium 1

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Baltic Blue

Active

Solanum tuberosum L. · Potato

Jan Darwinkel

DE
3 records

Bistra

Active

Solanum tuberosum L. · Potato

Kmetijski Inštitut Slovenije (Agricultural Institute of Slovenia)

SI
3 records

Aster

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
6 records

Armonia

Active

Solanum tuberosum L. · Potato

MIKE LUIZA

RO
3 records

AZhUR

Active

Solanum tuberosum L. · Potato

DUBININ SERGEJ VLADIMIROVICh / SEREGINA NADEZhDA IVANOVNA / ShANINA ELENA PETROVNA

UA
4 records

Amulet

Terminated

Solanum tuberosum L. · Potato

HZPC Holland B.V.

NL
4 records

Alena

Active

Solanum tuberosum L. · Potato

Norika Nordring-Kartoffelzucht-und Vermehrungs- GmbH Gros Lusewitz

LV
3 records

Aksamitka

Active

Solanum tuberosum L. · Potato

Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR

PL
5 records

Mistay

Terminated

Solanum tuberosum L. · Potato

The James Hutton Institute

2 records

Kirrie

Terminated

Solanum tuberosum L. · Potato

SCOTTISH CROP RESEARCH INSTITUTE

3 records

Bounty

Active

Solanum tuberosum L. · Potato

CYGNET POTATO BREEDERS

3 records

Cardinal

Active

Cordyline Comm. ex Juss. · Palm lily

Liner Plants Nz(1993) Limited

2 records

CROFT

Terminated

Solanum tuberosum L. · Potato

ES IE
5 records

Krostar

Terminated

Solanum tuberosum L. · Potato

HR NL
3 records

Epicure

Active

Solanum tuberosum L. · Potato

IE
3 records

Tentant

Protection expired

Solanum tuberosum L. · Potato

RO
2 records

Rebeka

Protection expired

Solanum tuberosum L. · Potato

HU
2 records

Productiv

Active

Solanum tuberosum L. · Potato

RO
2 records

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