Overtime
ActiveVaccinium virgatum Aiton · Rabbit-eye blueberry
Fall Creek Farm & Nursery Inc., Fall Creek Farm & Nursery Inc.
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.
Fandango
ActiveFragaria x ananassa Duchesne ex Rozier · Garden strawberry
Teunis Sikma
Maple Arrow
ActiveGlycine max (L.) Merr. · Soybean
Plant Products Division Agriculture Canada
AT
CZ
FR
SK
7 records
ES Mediator
ActiveGlycine max (L.) Merr. · Soybean
Patrice Jeanson
FR
IT
UA
11 records
Yesmina
ActiveSolanum tuberosum L. · Potato
UNICOPA/CLAUSE
DK
ES
FR
IT
NL
8 records
Honeoye
ActiveFragaria x ananassa Duchesne ex Rozier · Garden strawberry
Szkółka Markiewicz Agnieszka Markiewicz-Januszewska
FR
HU
NL
PL
UA
13 records
Linzer delikatess
ActiveSolanum tuberosum L. · Potato
Saatbau Linz OÖ. Landes-Saatbaugen.reg.Gen.m.b.H.
AT
BE
FR
LU
NL
8 records
Karnico
ActiveSolanum tuberosum L. · Potato
KWEEKINTITUUT KARNA
DE
DK
ES
FR
NL
6 records
Hansa
ActiveSolanum tuberosum L. · Potato
VEREINIGTE SAATZUCHTEN (DE)
DE
DK
FR
LU
NL
8 records
Astra
ActiveSolanum tuberosum L. · Potato
DANESPO A/S
DE
DK
HR
NL
SK
10 records
Allstar
ActiveSolanum tuberosum L. · Potato
Jan Lucas Spijkman, Johanna Maria Spijkman-Vergeer
EE
LV
NL
PT
SE
8 records
Angela
Protection expiredSolanum tuberosum L. · Potato
Kartoffelzucht Böhm GmbH & Co. KG (DE)
CZ
DE
HR
LT
SK
10 records
Tolstoi
ActiveSolanum lycopersicum L. · Tomato
Bejo Zaden B.V.
CZ
NL
PL
SK
7 records
Stroma
ActiveSolanum tuberosum L. · Potato
Dunnet, J.
DK
FR
IE
SE
10 records
Record
ActiveSolanum tuberosum L. · Potato
Potato Marketing Board Edinbourgh Maner Place (UK)
FI
HR
IE
SE
6 records
Ofelia
TerminatedSolanum tuberosum L. · Potato
SVALOF AB
BE
EE
LV
SE
8 records
Maris Piper
ActiveSolanum tuberosum L. · Potato
P.BREED.INT.CAMBRIDGE
ES
IE
IT
NL
9 records
Franca
ActiveSolanum tuberosum L. · Potato
NIEDERS KARTOFFELZ
DE
DK
ES
NL
11 records
Cristal
ActiveSolanum lycopersicum L. · Tomato
WESTERN SEED ESPAÑA, S.A.
CZ
ES
FR
SK
8 records
Exquisa
ActiveSolanum tuberosum L. · Potato
SAATZUCHT FIRLBECK GMBH and CO KG
AT
DE
FR
NL
9 records
Colt
ActivePrunus L. · Plum
Tydeman, Henry M.|deceased, late of East Malling, England by Elizabeth Mary Tydeman, executrix, East Malling, England by William Marcus Tydeman, executor, Bangor, Wales
DE
HU
NL
SK
11 records
Alcmaria
ActiveSolanum tuberosum L. · Potato
VERENIGDE KWEEKBEDRIJVEN (NL)
FR
IE
IT
NL
7 records
Biogold
Application submittedSolanum tuberosum L. · Potato
VAN RIJN-KWS B.V.
NL
UA
9 records
Triplo
ActiveSolanum tuberosum L. · Potato
STET HOLLAND
GR
HR
NL
10 records