Murescola
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Diseases
Powdery mildew
Erysiphales
Powdery mildew is a fungal disease manifesting as a white web-like coating on plant organs, leading to tissue necrosis, fruit deformation, and significant crop losses.
Mentioned in descriptions 33 570 varieties reference book.
Powdery mildew is caused by ectoparasitic fungi of the order Erysiphales, which develop primarily on the surface of leaves, shoots, and fruits. The initial white web-like coating eventually densifies into "powdery" cushions, upon which fungal fruiting bodies may form as dark spots. As a result of the infection, tissues turn yellow and become necrotic, fruits may crack, and leaves drop prematurely.
The intensity of disease development depends on a complex of factors: high relative humidity, moderate temperatures, the presence of dense canopy, and excessive nitrogen nutrition. Risks increase with alternating dry and wet weather. The harmfulness of the disease is expressed in a reduction of the leaf assimilation area, deterioration of crop quality, and a decrease in the general winter hardiness of crops.
Assessment of variety resistance is conducted under field conditions at various stages of vegetation, most often during the full heading phase. To classify the degree of infection, scoring systems or intensity scales in percentages are used, where varieties with up to 10% infection are considered highly resistant (R), 11 to 40% as moderately resistant (M), and more than 41% as susceptible (S). Variety resistance is ensured by genetic mechanisms that prevent colonization by the pathogen or limit the development of its mycelium.
Breakdown by crop
Powdery Mildew of Soft Wheat
1 157
Apple Powdery Mildew
1 127
Powdery mildew of cucumber
1 031
Powdery mildew of rose
785
Powdery Mildew of Barley
758
Powdery mildew of melon
670
Tomato powdery mildew
351
Powdery mildew of zucchini
333
Powdery mildew of strawberry
281
Powdery mildew of pea
268
Powdery mildew of triticale
241
Powdery mildew of lettuce
231
Powdery mildew — sugar beet
186
Powdery mildew of pepper
185
Gooseberry powdery mildew
176
Powdery mildew of oats
176
Apple powdery mildew
153
Powdery mildew — durum wheat
151
Powdery Mildew of Black Currant
143
Grape Powdery Mildew
110
Peach Powdery Mildew
81
Powdery mildew of rye
76
Powdery Mildew of Bigleaf Hydrangea
73
Verbena powdery mildew
69
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.
MONIFEST
TerminatedCucumis sativus L. · Cucumber
Khareba Oleksandr Volodymyrovych
UA
2 records
Newport
TerminatedHumulus lupulus L. · Common hop
Tereschenko Serhii
UA
1 record
MUC
WithdrawnPisum sativum L. · Pea
Tezier SA (FR)
FR
1 record
Mollard
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Mufassa F1
TerminatedCucurbita pepo L. · Field pumpkin
Khaled Kazzaz
UA
2 records
Nerac F1
ActiveDaucus carota L. · Carrot
Ger Bimsdeboer
UA
1 record
MS104
Application submittedVitis vinifera L. · Common grape vine
José Ignacio Fernández Fernández/Leonor Ruiz García/María Rocío Gil Muñoz/Diego José Fernández /María José Giménez Bañón/Juan Daniel Moreno Olivares/Celia Martínez Mora/Juan Antonio Bleda Sánchez/Adrián Martínez Cutillas
ES
1 record
Nemora
Application submittedTriticum aestivum L. · Bread wheat
Malopolska Hodowla Roslin Spolka z o.o.
PL
1 record
Moskvych
TerminatedTriticum aestivum L. · Bread wheat
Varlamova Tamara Hryhorivna, Yefremenkova Vira Ivanivna, Vasyl`ieva Anna Mykhailivna, Fomenko Nina Panteliivna, Vorobiova Raisa Ahafonivna, Ablova Iryna Borysivna, Shurovenkova Liudmyla Ivanivna, Bespalova Liudmyla Andriivna, Kudriashov Ihor Mykolaiovych,
UA
1 record
Morescono
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
NANTES SCARLET
WithdrawnDaucus carota L. · Carrot
SEMINIS VEGETABLE SEED IB
ES
1 record
Nastia
TerminatedMalus domestica (Suckow) Borkh. · Apple
Kopan Volodymyr Pavlovych, Boldyzheva Liubov Dmytrivna,
UA
2 records
Misket Viking
ActiveVitis vinifera L. · Common grape vine
Galina Dyakova, Ralitsa Mincheva
BG
2 records
MIP Darunok
ActiveTriticum aestivum L. · Bread wheat
Topko Rostyslav Ihorovych, Rysin Artur Leonidovych, Siroshtan Andrii Anatoliiovych, Blyzniuk Bohdana Valeriivna, Derhachov Oleksandr Leonidovych, Zamlila Nina Petrivna, Kyrylenko Vira Viktorivna, Volohdina Halyna Borysivna, Humeniuk Oleksandr Volodymyrovy
UA
2 records
Monbadon B
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Naval F1
TerminatedDaucus carota L. · Carrot
Ger Beemsterboer
UA
1 record
Vitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Naranco
Application submittedCucurbita pepo L. · Field pumpkin
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Millesim
WithdrawnHordeum vulgare L. · Barley
Lemaire Deffontaines (FR)
FR
1 record
Milgranet
ActiveVitis vinifera L. · Common grape vine
INCONNU (FR)
FR
1 record
Miyawa
Application submittedCucumis sativus L. · Cucumber
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Misket rusenski
ActiveVitis vinifera L. · Common grape vine
Dimitar Mitev, Zdravko Zankov, Ivan Todorov
BG
1 record
Muskat Livadiia
TerminatedVitis vinifera L. · Common grape vine
Kalashnikov IUrii Mykolaiovych, Timukin IUrii Oleksandrovych, Yatskov Viktor Mykhailovych, Yurchenko Volodymyr IUriiovych, Kostik Mariia Antonivna, Holodryha Pavlo IAkovych,
UA
2 records