Baldomero
ActiveSolanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
NL
4 records
Pests
Nematodes
Nematodes are microscopic roundworm endoparasites that feed on plant sap and cause significant yield losses. Varietal resistance is provided by genetic mechanisms that prevent pest reproduction and is assessed according to the International Seed Federation scale.
Mentioned in descriptions 13 637 varieties reference book.
Nematodes are microscopic roundworms ranging from 0.3 to 2 mm in size that act as obligate plant parasites. Most species penetrate root, stem, or bulb tissues, causing growth inhibition, wilting, and patchy crop development, with tissue damage often facilitating secondary infections.
Varietal resistance to nematodes is based on the plant's genetic apparatus, including specific R-genes that limit the feeding or reproduction of the pest. In some cases, protection is provided by a hypersensitive response, where local cell death occurs at the site of infection.
Protection efficacy is evaluated using International Seed Federation codes: HR denotes high resistance with limited parasite development under high inoculum pressure, while IR indicates intermediate resistance. The level of protection is race-specific and depends on the specific species and pathotype of the nematode.
Breakdown by crop
Root-knot nematodes of tomato
1 711
Potato nematodes
1 231
Nematodes of sugar beet
287
Pepper Nematodes
154
Nematodes — Oilseed radish
143
Nematodes in white mustard
105
Nematodes — Tomato (Interspecific Hybrids)
79
Alfalfa nematodes
62
Barley nematodes
55
Root-knot nematodes of tomato
49
Soybean cyst nematode
35
Grapevine Nematodes
32
Plum nematodes
24
Peach nematodes
22
Rice nematodes
22
Nematodes in black oat
21
Nematodes of oats
20
Citrus Nematode
19
Nematodes — Prunus amygdalus x Prunus persica
16
Nematodes of White Clover
15
Nematodes in Prunus davidiana × Prunus persica hybrids
14
Nematodes — Solanum torvum Sw.
14
Nematodes — common wheat
14
Nematodes — hybrids between Citrus x aurantium L. x Citrus trifoliata L.
13
Found in these crops
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.
Crystelle
Application submittedSolanum lycopersicum L. · Tomato
Syngenta Crop Protection AG
NL
4 records
Cappucchino
ActiveBrassica carinata A. Braun · Ethiopian mustard
J. Joordens Zaadhandel B.V.
UA
3 records
Andean Sunrise
ActiveSolanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico B.V.
NL
3 records
Actimino
Activehybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Enza Zaden Beheer B.V.
NL
5 records
MGC 1003
ActiveCannabis sativa L. · Hemp
MARCEL DE WIT
Zdabytak
ActiveSolanum tuberosum L. · Potato
ZUJKOV ANDREJ EVGEN'EVICh / PISKUN GEORGIJ IVANOVICh / ZhUROMSKIJ GENNADIJ KONSTANTINOVICh / KOLYaDKO OL'GA MATVEEVNA / DEMIDKO YaNINA DAVYDOVNA
UA
4 records
Zapador
ActiveSolanum lycopersicum L. · Tomato
Paul Zamudio
FR
5 records
Yuba
Protection expiredSolanum lycopersicum L. · Tomato
Harris Moran Seed Company
PT
3 records
Ydun
ActiveSolanum tuberosum L. · Potato
KMC Kartoffelmelscentralen a.m.b.a.
DK
4 records
Yanka
ActiveSolanum tuberosum L. · Potato
RUP «NAUCHNO - PRAKTICHESKIJ CZENTR NACZIONALNOJ AKADEMII NAUK BELARUSI PO KARTOFELEVODSTVU I PLODOOVOSHHEVODSTVU»
UA
5 records
Wren
TerminatedHordeum vulgare L. · Barley
Zeneca Seeds UK Ltd
DK
5 records
Yazir
ActiveCapsicum annuum L. · Bell pepper
Syngenta Seeds B.V.
NL
5 records
Vitalfort
Activehybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Monsanto Vegetable IP Management B.V.
NL
4 records
Xiramat
ActiveSolanum lycopersicum L. · Tomato
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Vysocina
ActiveSolanum tuberosum L. · Potato
Vesa Velhartice a.s.
CZ
4 records
Vigoterra
Activehybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
TAKII and CO LTD
NL
3 records
Vinicio
ActiveSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
5 records
Vanessa
ActiveSolanum lycopersicum L. · Tomato
HAZERA SEEDS BV
NL
3 records
Veyron
ActiveSolanum lycopersicum L. · Tomato
Syngenta Seeds B.V.
NL
6 records
Verne
ActiveSolanum tuberosum L. · Potato
Vesa Velhartice a.s.
CZ
4 records
Verlenza
Application submittedSolanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
NL
5 records
Valdo
ActiveSolanum lycopersicum L. · Tomato
SEMO a.s
CZ
3 records
Vermont
ActiveSolanum tuberosum L. · Potato
Kuipers Potato V.O.F.
NL
5 records