Nevskij
ActiveSolanum tuberosum L. · Potato
Šiaurės-Vakarų ŽŪMTI
LT
3 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.
OAC Almond
ActiveGlycine max (L.) Merr. · Soybean
Istvan Rajkan
UA
3 records
OAC Bruno
ActiveGlycine max (L.) Merr. · Soybean
Istvan Rajkan
UA
3 records
OAC Acclaim
ActiveGlycine max (L.) Merr. · Soybean
Istvan Rajkan
UA
3 records
MT 1284
ActiveSolanum lycopersicum L. · Tomato
PLANTENKWEKERIJ VREUGDENHIL B.V.
NL
3 records
Nola
ActiveSolanum tuberosum L. · Potato
Aardappelkweek- en Selectiebedrijf Ijsselmeerpolders B.V.
NL
4 records
Mountain Gem
ActiveSolanum lycopersicum L. · Tomato
Bejo Zaden B.V.
NL
5 records
Nikkalyn
ActiveSolanum tuberosum L. · Potato
Johan Martijn Kannegieter
NL
4 records
Naglerner Kipfler
ActiveSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
2 records
Mogli
ActiveSolanum tuberosum L. · Potato
Adolf Kellermann^^^Sanja Randjelovic
DE
3 records
MIZEN
TerminatedSolanum tuberosum L. · Potato
001. Teagasc, IE
IE
3 records
Mirari
ActiveSolanum tuberosum L. · Potato
NEIKER-INSTITUTO VASCO DE INVESTIGACIÓN Y DESARROLLO AGRARIO, S.A.
ES
3 records
Mirage
Protection expiredSolanum tuberosum L. · Potato
KARTZ VON KAMEKE
DE
3 records
Milenia
ActiveSolanum tuberosum L. · Potato
Europlant America LLC
DE
3 records
Miłek
TerminatedSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
3 records
Millennium Russet
ActiveSolanum tuberosum L. · Potato
Wisconsin Alumni Research Foundation (US)
FR
2 records
Meteor
ActiveSolanum tuberosum L. · Potato
Station de Recherche du Comite Nord (FR)/Groupement Interprofessionel de la Pomme de Terre (FR)
FR
3 records
Merano
ActiveSolanum tuberosum L. · Potato
Johan Herman Mencke
NL
4 records
Michalina
ActiveSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
4 records
Merkawa
ActiveSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
5 records
Mors
TerminatedSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
3 records
Maxilla
ActiveSolanum tuberosum L. · Potato
Dr. Karl Heinz Möller im Institut f.Kartoffelforschung - Abt. Kartoffelzüchtung - / Dr. Friedrich Papenhagen / Dr. Karl Tändler
DE
3 records
Meluzyna
ActiveSolanum tuberosum L. · Potato
Hodowla Ziemniaka Zamarte sp. z o.o. - Grupa IHAR
PL
4 records
Meichip
ActiveSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
3 records