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Pests

Root-knot nematodes of tomato

Solanum lycopersicum L.

Root-knot nematodes of the genus Meloidogyne cause damage to the tomato root system, manifested by the formation of characteristic swellings (galls), which leads to impaired nutrition and stunting of the plant's aerial parts.

In the reference 1 711 varieties crop Tomato, where this is mentioned in the description.

The primary pathogens affecting tomatoes are Meloidogyne incognita, M. javanica, M. arenaria, and M. hapla. Root infestation manifests as galls, which, in cases of severe infection, coalesce into large masses, disrupting the vascular system. In the aerial parts, this is expressed as stunted growth, chlorosis, and diurnal wilting of the plants.

Genetic resistance of tomatoes to the species M. incognita, M. javanica, and M. arenaria is provided by the dominant gene Mi (or Mi-1), which triggers a hypersensitive response in reaction to the parasite's invasion. It is important to note that the effect of this gene generally does not extend to the species M. hapla.

General information about the subject — on the page Nematodes.

Sources8

Varieties of Tomato 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.

Rocasol

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Riesling

Active

Solanum lycopersicum L. · Tomato

Vilmorin-Mikado S.A.S.

FR
4 records

Ricosol

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Rêva

Active

Solanum lycopersicum L. · Tomato

Vilmorin SA (FR)

FR
2 records

Ricciolo

Active

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
2 records

Resolute

Active

Solanum lycopersicum L. · Tomato

Bejo Zaden B.V.

NL
3 records

Rosende

Active

Solanum lycopersicum L. · Tomato

INTERSEMILLAS SAU

ES
2 records

Rexiany

Active

Solanum lycopersicum L. · Tomato

Axia Vegetable Seeds B.V.

NL
5 records

Rosalie

Active

Solanum lycopersicum L. · Tomato

HAZERA GENETICS

ES
2 records

Rivolo

Active

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

FR
3 records

Rioalto

Terminated

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Reniro

Active

Solanum lycopersicum L. · Tomato

W. LEGUTKO PRZEDSIEBIORSTWO HODOWLANO NASIENNE SP.Z.O.O

PL
2 records

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
3 records

Solanum lycopersicum L. · Tomato

HM Clause Inc (US)

FR
2 records

Rapanui

Active

Solanum lycopersicum L. · Tomato

HAZERA SEEDS BV

ES
4 records

Solanum lycopersicum L. · Tomato

Vilmorin-Mikado S.A.S.

FR
3 records

Razymo

Terminated

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Rafoly

Active

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

FR
3 records

Realsol

Active

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Raffy

Active

Solanum lycopersicum L. · Tomato

Gautier Semences SAS (FR)

FR
3 records

Renegade

Active

Solanum lycopersicum L. · Tomato

CORA SEEDS S.R.L

PL
2 records

REGINA

Terminated

Solanum lycopersicum L. · Tomato

FDB FRØ

DK
2 records

Rapit

Terminated

Solanum lycopersicum L. · Tomato

SEMINIS INC

ES
2 records

Pumatis

Active

Solanum lycopersicum L. · Tomato

HM Clause Inc (US)

FR
3 records

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