Pests
Solanum lycopersicum L. var. lycopersicum
Root-knot nematodes of the genus Meloidogyne are obligate endoparasites of tomato roots that cause meloidogynosis. Infestation leads to the formation of galls, stunted plant development, and significant yield losses.
In the reference 49 varieties crop Tomato, where this is mentioned in the description.
For tomatoes, the most significant species are Meloidogyne incognita, Meloidogyne javanica, and Meloidogyne hapla. Parasitism is accompanied by the formation of specific swellings on the roots, known as galls, which impair the uptake of water and mineral nutrients. Externally, the infestation manifests as stunted plant growth, leaf chlorosis, and wilting during hot periods, which reduces yields by up to 80%.
In tomato breeding for resistance, the dominant Mi (Mi-1.2) gene plays a key role, providing protection against M. incognita, M. javanica, and M. arenaria, but it is ineffective against M. hapla. In seed catalogs, resistance is indicated by the code N, where HR (High Resistance) indicates the presence of genetic protection against major nematode species, often confirmed using molecular markers such as Mi23.
General information about the subject — on the page Nematodes.
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. var. lycopersicum · Tomato
S.A.I.S. Societa Agricola Italiana Sementi
Solanum lycopersicum L. var. lycopersicum · Tomato
CORA SEEDS S.R.L
Solanum lycopersicum L. var. lycopersicum · Tomato
NIRIT SEEDS
Solanum lycopersicum L. var. lycopersicum · Tomato
UNITED GENETICS ITALIA S.P.A
Solanum lycopersicum L. var. lycopersicum · Tomato
UNITED GENETICS ITALIA S.P.A
Solanum lycopersicum L. var. lycopersicum · Tomato
S.A.I.S. Societa Agricola Italiana Sementi
Solanum lycopersicum L. var. lycopersicum · Tomato
S.A.I.S. Societa Agricola Italiana Sementi
Solanum lycopersicum L. var. lycopersicum · Tomato
UNITED GENETICS ITALIA S.P.A
Solanum lycopersicum L. var. lycopersicum · Tomato
MERIDIEM SEEDS S.L.
Solanum lycopersicum L. var. lycopersicum · Tomato
ISI SEMENTI SPA
Solanum lycopersicum L. var. lycopersicum · Tomato
NIRIT SEEDS
Solanum lycopersicum L. var. lycopersicum · Tomato
LAMBOSEEDS S.R.L.
Solanum lycopersicum L. var. lycopersicum · Tomato
HOOGSTRATEN JAAP
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato
Solanum lycopersicum L. var. lycopersicum · Tomato