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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.

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Heinz 9494

Terminated

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
3 records

Ibrax

Terminated

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

NL
2 records

Ibeth

Active

Solanum lycopersicum L. · Tomato

Syngenta Seeds B.V.

NL
4 records

Guiomar

Active

Solanum lycopersicum L. · Tomato

MERIDIEM SEEDS S.L.

ES
2 records

Grintoso

Terminated

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Gustodona

Application submitted

Solanum lycopersicum L. · Tomato

Syngenta Crop Protection AG

NL
4 records

Solanum lycopersicum L. · Tomato

SIA(EXTREMA)/E.ENSY(MALAG

ES
2 records

Honoka

Active

Solanum lycopersicum L. · Tomato

Ikasido Global Group B.V (NL)

BG
3 records

Solanum lycopersicum L. · Tomato

TSI Italia S.R.L.

HU
3 records

Heinz7709

Terminated

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Harper

Active

Solanum lycopersicum L. · Tomato

Erma Zaden (IL)

BG
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

Granoval

Active

Solanum lycopersicum L. · Tomato

MAGNUM SEEDS INC

ES
2 records

Solanum lycopersicum L. · Tomato

Clause (FR)

FR
2 records

Graham

Active

Solanum lycopersicum L. · Tomato

Enza Zaden Beheer B.V.

NL
4 records

Solanum lycopersicum L. · Tomato

UNITED GENETICS SEEDS CO

PT
2 records

Solanum lycopersicum L. · Tomato

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Solanum lycopersicum L. · Tomato

HEINZSEED

PT
2 records

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