Fleur de pêcher
ActiveSolanum tuberosum L. · Potato
INCONNU (FR)
FR
2 records
Diseases
Late blight
Phytophthora infestans
Late blight is a dangerous disease of solanaceous crops caused by an oomycete, which manifests as the appearance of spots on leaves, stems, and tubers. The development of the disease is triggered by high humidity and moderate temperatures, which can lead to significant crop losses.
Mentioned in descriptions 6 798 varieties reference book.
Affected plants develop dirty-brown spots, often accompanied by a whitish mold on the underside of the leaf, while elongated dark-brown spots appear on the stems. Tubers show hard, sunken brown spots, and the internal tissue exhibits a characteristic rust-brown discoloration upon cutting.
Epiphytotics develop under conditions of high air humidity around 90% and alternating warm days with cool nights. The presence of free moisture, such as dew or fog, is a critical factor for rapid spore germination, which allows the infection to spread across the field in 10–15 days.
In breeding, a distinction is made between specific vertical resistance, controlled by R-genes, and field horizontal resistance, which is considered more reliable due to its polygenic nature and ability to slow down pathogen development. Varieties are evaluated using a 9-point scale; however, the resistance level of the foliage does not always coincide with that of the tubers, requiring comprehensive analysis during variety testing.
Breakdown by crop
Potato late blight
1 396
Tomato Late Blight
273
Phytophthora root rot of strawberry
99
Phytophthora Root and Stem Rot of Soybean
61
Phytophthora Root Rot of Alfalfa
41
Phytophthora blight of pepper
41
Apple Phytophthora Rot
24
Phytophthora Root Rot of Raspberry
21
Apple Phytophthora Rot
20
Tomato Late Blight
17
Citrus Phytophthora
17
Plum Phytophthora root rot
15
Phytophthora blight — hybrids between Citrus x aurantium L. x Citrus trifoliata L.
13
Strawberry Phytophthora root rot
13
Phytophthora Root Rot of Blueberry
11
Phytophthora root rot of sweet chestnut
9
Phytophthora blight — Leek
7
Phytophthora root rot of sour cherry
6
Phytophthora root rot of paradise apple
6
Avocado Phytophthora Root Rot
6
Peach Phytophthora Root Rot
5
Phytophthora root rot of Vaccinium
5
Late Blight of Eggplant
4
Phytophthora root rot of Prunus amygdalus x Prunus persica
4
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.
Floribel
ActiveSolanum tuberosum L. · Potato
CRAW-DPT SCIENCES DU VIVANT - UNITÉ D'AMÉLIORATION
BE
2 records
Excellent
ActiveSolanum tuberosum L. · Potato
Kweek- en Researchbedrijf Agrico B.V.
NL
3 records
Etola
TerminatedSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
4 records
Ferosacre
ActiveCastanea sativa Mill. · Sweet chestnut
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
FR
3 records
Enija
ActiveCucumis sativus L. · Cucumber
Kees Broersen Zaden
PL
2 records
Fala
ActiveSolanum tuberosum L. · Potato
Pomorsko Mazurska Hodowla Ziemniaka Sp.z o.o. z siedziba w Strzekecinie
PL
4 records
Eurofit
ActiveSolanum tuberosum L. · Potato
Europlant Innovation GmbH & Co. KG
DE
3 records
Elegante
ActiveSolanum tuberosum L. · Potato
BRETAGNE PLANTS INNOVATION S.A.S.
FR
3 records
Dunastar
ActiveSolanum tuberosum L. · Potato
P H SMEENGE
NL
3 records
Ester
ActiveSolanum tuberosum L. · Potato
Vesa Velhartice a.s.
CZ
3 records
Ebexa
ActiveSolanum tuberosum L. · Potato
Landbouwbedrijf Ebels B.V.
NL
4 records
Esperanto
ActiveSolanum tuberosum L. · Potato
SIPRE (FR)
FR
3 records
Ervant
ActiveSolanum tuberosum L. · Potato
HERMEZIU RADU
RO
3 records
Dupnitsa 126
ActiveNicotiana tabacum L. · Tobacco
Georgi Stankev
BG
3 records
Elsariusz
ActiveFragaria x ananassa Duchesne ex Rozier · Garden strawberry
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
PL
4 records
Dorada
ActiveSolanum lycopersicum L. · Tomato
Dr. Horneburg Bernd, Georg-August-Universität Göttingen
AT
2 records
Dexx
ActiveSolanum tuberosum L. · Potato
Maatschap W. Koeman J.R.C. Koeman B.V. en J.R.C. Koeman
NL
4 records
Dior
ActiveSolanum tuberosum L. · Potato
Kuipers Potato V.O.F.
NL
4 records
Darilena
ActiveSolanum tuberosum L. · Potato
HERMEZIU RADU
RO
3 records
Cyranka
ActiveSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
4 records
Darléta
ActiveFragaria x ananassa Duchesne ex Rozier · Garden strawberry
SC Darbonne (FR)
FR
3 records
Diamandia
ActiveSolanum lycopersicum L. · Tomato
HM.Clause S.A.S.
FR
3 records
Cosiana
ActiveSolanum tuberosum L. · Potato
HERMEZIU RADU
RO
3 records