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 Durum wheat 1 Festulolium 1 Common bean 1 Palm lily 1 Maize 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.

Delcora

Protection expired

Solanum tuberosum L. · Potato

DLF SEEDS A/S

ES FR IE IT NL

8 records

Angela

Protection expired

Solanum tuberosum L. · Potato

Kartoffelzucht Böhm GmbH & Co. KG (DE)

CZ DE HR LT SK

10 records

Inara

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE NL UA

11 records

Glorietta

Active

Solanum tuberosum L. · Potato

Heinrich Böhm

FR LU NL

9 records

Zafira

Active

Solanum tuberosum L. · Potato

Kweek- en Researchbedrijf Agrico B.V.

HR NL

8 records

Sierra

Active

Solanum tuberosum L. · Potato

PLANT BREEDING INTERNATIONAL CAMBRIDGE

CZ PL

9 records

Newton

Active

Solanum tuberosum L. · Potato

ROBERT HOOPES

NL UA

15 records

Iodea

Active

Solanum tuberosum L. · Potato

Station de Recherche du ComitÚ Nord

FR NL

9 records

Ayla

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE NL

9 records

Ailsa

Protection expired

Solanum tuberosum L. · Potato

The James Hutton Institute

ES IE

10 records

Miss Malina

Active

Solanum tuberosum L. · Potato

Interseed Potatoes GmbH

8 records

Brianna

Active

Solanum tuberosum L. · Potato

Stet Holland B.V.

8 records

Tempora

Protection expired

Solanum tuberosum L. · Potato

Nordkartoffel Zuchtgesellschaft mbH

CZ DE NL SK

6 records

Ackersegen

Active

Solanum tuberosum L. · Potato

Kartoffelzucht Böhm Ing. Gebrüder Böhm K.G.

AT DE FR SK

5 records

Vindika

Active

Solanum tuberosum L. · Potato

VERENIGDE KWEEKBEDRIJVEN (NL)

DE FR IE

10 records

Rosalie

Active

Solanum tuberosum L. · Potato

Potato Seed Solutions

ES FR NL

6 records

Nl Russet Burbank

Protection expired

Solanum tuberosum L. · Potato

MONSANTO COMPANY, US

CZ PL RO

5 records

Evita

Active

Solanum tuberosum L. · Potato

Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.

AT CZ EE

11 records

Carouby de Maussane

Active

Pisum sativum L. · Pea

SATIVA VIA CALCINARO 2425

CZ ES FR

5 records

Carola

Protection expired

Solanum tuberosum L. · Potato

W.WALLMULLER

DE ES NL

6 records

Bonanza

Protection expired

Solanum tuberosum L. · Potato

SAATZUCHT FIRLBECK GMBH&CO.KG

AT DE NL

7 records

Monte Carlo

Active

Solanum tuberosum L. · Potato

Johanna Anny Pruim-van Loon^^^Hubrecht Jan van Loon^^^Anthonie Elbert van Loon^^^Elbertus Marius van Loon^^^Jan Pieter van Loon^^^Johanna Wilhelmina Maatje van Loon-Kloet

NL UA

11 records

Lady Sara

Active

Solanum tuberosum L. · Potato

HESELMANS GUUS

NL UA

9 records

Jola

Active

Solanum tuberosum L. · Potato

Wolfgang Walter

DE UA

7 records

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.