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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 Olive 2 Apricot 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.

Euro Star

Active

Solanum tuberosum L. · Potato

VAN RIJN-KWS B.V.

DE HR IT NL PL
18 records

Maris Bard

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL CAMBRIDGE

ES HR IE IT NL SE +1
15 records

Big Rossa

Active

Solanum tuberosum L. · Potato

Josef Schwarzfischer^^^Adolf Kellermann

DE
5 records

Victoria

Active

Solanum tuberosum L. · Potato

KWEEKBEDRIJF ROPTA ZPC

BG CZ EE FI FR HU +7
34 records

Mondial

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF D. BIEMOND B.V.

AT BE CZ DK ES FR +7
35 records

Latona

Active

Solanum tuberosum L. · Potato

ZPC Portugal

BG CZ EE ES FR HR +9
25 records

Daisy

Active

Solanum tuberosum L. · Potato

Lab. De Phys. Veget., Barberet Et Ducloux Et Cie

BG FR HU PL SK UA
29 records

Fabula

Active

Solanum tuberosum L. · Potato

Kweekbedrijf D. Biemond B.V.

GR HR IT NL PL SI +1
27 records

Morene

Active

Solanum tuberosum L. · Potato

S.BRUNIA

BE CZ DE DK ES FR +5
29 records

Désirée

Active

Solanum tuberosum L. · Potato

ZPC

AT CZ DE ES FR HR +6
26 records

Marabel

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF BV

BE BG CZ DE DK ES +7
25 records

Lady christl

Active

Solanum tuberosum L. · Potato

MUIJSERS| J. Muijsers c/o C. Meijer B.V.

CZ DE FI FR NL PL +2
24 records

Vineta

Active

Solanum tuberosum L. · Potato

Yorh Ehhers

BG CZ DE EE HR HU +5
21 records

Divina

Active

Solanum tuberosum L. · Potato

VEREDELINGSBEDRIJF D. BIEMOND B.V.

BE CZ DE DK EE FR +4
20 records

Almera

Active

Solanum tuberosum L. · Potato

Svalof Weibull AB

AT BG CZ HR NL PL +1
18 records

Symfonia

Active

Solanum tuberosum L. · Potato

WALSMA| A. Walsma

CZ DE ES HR IT NL
18 records

Gala

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

BG DE LT LU UA
22 records

Satina

Active

Solanum tuberosum L. · Potato

SOLANA DEUTSCHLAND GmbH

CZ DE HR HU LT PL +2
20 records

Caesar

Active

Solanum tuberosum L. · Potato

KWEEKBEDRIJF ROPTA ZPC

BG DE DK ES FR IE +2
17 records

Vivaldi

Active

Solanum tuberosum L. · Potato

van der Zee, G. / van der Zee, Pieter

CZ FR HR IT LT NL +1
21 records

Rumba

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

DE FR NL UA
21 records

Donata

Active

Solanum tuberosum L. · Potato

Justus Bohm

NL UA
19 records

Obelix

Protection expired

Solanum tuberosum L. · Potato

WESTMAAS| Arie Westmaas

BE DE DK ES FR IE +3
17 records

Provento

Active

Solanum tuberosum L. · Potato

WOLF&WOLF

BG CZ ES FR HR NL +2
19 records

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