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Diseases

Raspberry root rots

Rubus idaeus L.

Phytophthora root rot of raspberry, caused by the pathogen Phytophthora fragariae var. rubi, is the most dangerous disease leading to plant death due to the destruction of the root system.

In the reference 55 varieties crop Red raspberry, where this is mentioned in the description.

The primary causative agent of the disease is Phytophthora fragariae var. rubi, although species such as P. gonapodyides, P. cryptogea, P. citricola, and P. megasperma may also be found on the crop. No clearly differentiated races of the main raspberry pathogen have been identified to date.

Symptoms of infection include delayed bud break, sudden stem wilting, and leaf chlorosis. During diagnosis, a characteristic boundary is observed on the roots between healthy white tissue and infected reddish-brown tissue, and a 'shepherd's crook' formation occurs when shoot tips wither.

Breeding for resistance relies on the identification of quantitative trait loci (QTLs), specifically the Rub118b110 marker, as well as the study of immune regulator proteins such as RiABP19. In practice, cultivar resistance is assessed by expert evaluation based on trial results rather than through the designation of specific genes.

General information about the subject — on the page Root rots.

Sources8

Varieties of Red raspberry mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

WSU 1605

Active

Rubus idaeus L. · Red raspberry

Washington State University Puyallup Research and Extension Center

3 records

BC92915

Active

Rubus idaeus L. · Red raspberry

Kempler Chaim

4 records

Cascade Bounty

Active

Rubus idaeus L. · Red raspberry

Washington State University Puyallup Research and Extension Center

4 records

Malahat

Active

Rubus idaeus L. · Red raspberry

Pacific Agriculture and Agri-Food

5 records

Glen Doll

Active

Rubus idaeus L. · Red raspberry

The James Hutton Institute, Dundee, DD2 5DA

3 records

Caroline

Active

Rubus idaeus L. · Red raspberry

Swartz, Harry Jan|16022 Jerald Rd., Laurel, MD 20707 / Fiola, Joseph A.|1400 Paterson Ave., Whiting, NJ 08759 / Stiles, Herbert D.|811 Brunswick Ave., Blackstone, VA 23824 / Smith, Brian A.|311 N. Dallas St., River Falls, WI 54022

5 records

Wei-Rula

Active

Rubus idaeus L. · Red raspberry

5 records

Josephine

Active

Rubus idaeus L. · Red raspberry

Swartz Harry Jan / Fiola Joseph A. / Stiles Herbert D. / Smith Brian R.

3 records

Agat

Active

Rubus idaeus L. · Red raspberry

Graminor AS, N-2322 Ridabu

2 records

Marwe

Active

Rubus idaeus L. · Red raspberry

NL
8 records

Asker

Active

Rubus idaeus L. · Red raspberry

SE
5 records

Schönemann

Active

Rubus idaeus L. · Red raspberry

NL SI
5 records

Varnes

Active

Rubus idaeus L. · Red raspberry

4 records

Chemainus

Active

Rubus idaeus L. · Red raspberry

NL
4 records

Tambar

Active

Rubus idaeus L. · Red raspberry

4 records

Himbo Top

Active

Rubus idaeus L. · Red raspberry

CZ
4 records

Comox

Active

Rubus idaeus L. · Red raspberry

HU
3 records

Cowichan

Active

Rubus idaeus L. · Red raspberry

NL
4 records

Saanich

Active

Rubus idaeus L. · Red raspberry

NL
4 records

Frosta

Active

Rubus idaeus L. · Red raspberry

3 records

Hitra

Active

Rubus idaeus L. · Red raspberry

4 records

Malling Jewel TJW

Terminated

Rubus idaeus L. · Red raspberry

Szkółka Jagoda Teresa i Jan Wyrobek

PL
1 record

Glen Rosa

Active

Rubus idaeus L. · Red raspberry

SCOTTISH CROP RESEARCH INSTITUTE

4 records