Epsilone
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
4 records
Pests
Aphids
Aphididae
Aphids are sap-sucking pests that cause leaf deformation, stunted plant growth, and reduced productivity. They also act as vectors for viral infections and facilitate the growth of sooty mold on the honeydew they secrete.
Mentioned in descriptions 6 810 varieties reference book.
Aphids are small sap-sucking pests that deplete plant cell sap during feeding, inhibiting photosynthesis and protein synthesis. Infestation manifests as leaf curling and deformation, the appearance of galls, premature leaf drop, and general suppression of shoots. The pest is diagnosed by colonies on the underside of leaves, the presence of a sticky honeydew coating, and ant activity.
Varietal resistance to aphids is classified as high (HR), which restricts pest development, or intermediate (IR), which can manage infestation under moderate pressure. The effectiveness of varietal protection depends on the type of mechanisms: vertical, which provides specific immunity to certain races, or horizontal, which creates general buffer resistance through the plant's physiological and biochemical properties.
Resistance assessment is a dynamic characteristic, as pests evolve by overcoming race-specific resistance genes. To maintain stability, agronomists apply the rotation of varieties with different resistance genes and combine their use in mixtures, avoiding monoculture with identical characteristics on the same land areas over long periods.
Breakdown by crop
Lettuce aphid
1 326
Melon Aphid on Melon
220
Apple Aphids
85
Apple Aphid
44
Aphids on Raspberry
43
Alfalfa Aphid
35
Aphids on soft wheat
16
Aphids on Lettuce
13
Aphids on Barley
13
Aphids on Paradise Apple
12
Sorghum aphid
11
Peach aphid
10
Aphid — Red Currant
10
Chrysanthemum aphid
10
Hop aphid on hops
9
Aphids on faba beans
9
Aphids on Faba Beans
9
Pea aphid on peas
9
Aphids on carrot
9
Aphids — White Cabbage
8
Aphid infestation of Canadian poplar
8
Black Cherry Aphid — Sour Cherry
7
Cabbage aphid on rapeseed
7
Aphids on Sugar Beet
7
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.
Eztela
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Eline
Application submittedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Emilina
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Exmoss
Application submittedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Ezfrill
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
5 records
Extranet
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
7 records
Ezbruke
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Exframe
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Exira
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Exanimo
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Eccelso
ActiveCucumis melo L. · Melon
Syngenta Seeds B.V.
NL
5 records
Etika
ActiveCucumis melo L. · Melon
Enza Zaden Beheer B.V.
NL
7 records
Espirando
ActiveLactuca sativa L. · Lettuce
Enza Zaden Beheer B.V.
NL
6 records
Erudita
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
5 records
Donertie
TerminatedLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Dukat
ActiveLupinus luteus L. · Yellow lupin
Poznanska Hodowla Roslin Sp. z o.o
PL
4 records
Elisian
ActiveLactuca sativa L. · Lettuce
Syngenta Seeds B.V.
NL
5 records
Elzar
ActiveCucumis melo L. · Melon
Syngenta Seeds B.V.
NL
5 records
Di Lucia
TerminatedCucumis melo L. · Melon
Rijk Zwaan Zaadteelt en Zaadhandel BV (NL)
FR
4 records
Eglantine
ActiveLactuca sativa L. · Lettuce
Vilmorin-Mikado S.A.S.
FR
8 records
Dynamo
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
4 records
Descartes
ActiveLactuca sativa L. · Lettuce
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
6 records
Duco
Application submittedLactuca sativa L. · Lettuce
Enza Zaden Seed Operations B.V.
NL
5 records