Pests
Curculionidae
Weevils are a family of insects that damage all plant parts at various stages of development. Varietal resistance to them is determined by anatomical and biochemical characteristics, although there is no unified international coding system for such resistance.
Mentioned in descriptions 387 varieties reference book.
Weevils constitute a vast family of insects whose adults and larvae damage any organs of cultivated plants, including buds, leaves, flower buds, fruits, and seeds. External symptoms of damage manifest as "weeping buds," drying of flower buds due to consumption, leaf shot-holes, as well as internal galleries in grains or fruits, which can lead to plant death if growing points are affected.
Varietal resistance to these pests is based on physiological and biochemical characteristics, such as the presence of specific metabolites and enzymes, as well as anatomical and morphological features: tissue density, degree of pubescence, and waxy bloom. In breeding, the resistance level is assessed by comparison with a susceptible control under identical conditions, and it can be both specific and polygenic in its buffering nature.
A unified international coding system for weevil resistance is not presented in open publications; therefore, information on varietal resistance is mostly descriptive, based on results of multi-year field trials. Selecting a specific cultivar in high infestation zones requires consultation with the originator, as the degree of resistance is a relative value dependent on agronomic practices, plant age, weather conditions, and potential evolution of pest biotypes.
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.
Triticum durum Desf. · Durum wheat
Syngenta Participations AG, S.I.S. Società Italiana Sementi S.p.A.
Medicago sativa L. · Alfalfa
M. Mirchev, D. Dekov, D. Petkova, V. Toromanova
Hordeum vulgare L. · Barley
Institut za ratarstvo i povrtarstvo, Novi Sad (RS)
Lolium x hybridum Hausskn. · Hybrid ryegrass
GRASSLANDS DIVISION
Vicia faba L. · Broad bean
Institut National de Recherche pour l'Agriculture l'Alimentation et l'Environnement (INRAE)
Begonia x hiemalis Fotsch · Elatior Begonia
LUBBERTUS H.KOPPE
Lolium perenne L. · Perennial ryegrass
Yes applicant details in question 1, Yes applicant details in question 1
Heuchera L. · Coral Flower
Janet N. Egger
Heuchera L. · Coral Flower
Janet N. Egger
Heuchera L. · Coral Flower
Sandrine Delabroye
Lolium perenne L. · Perennial ryegrass
SEED RESEARCH OF OREGON
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Corylus avellana L. · Common hazel
Zea mays L. · Maize
Rene Baratin
Triticum aestivum L. · Bread wheat
Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR
Medicago lupulina L. · Black medic
DLF SEEDS A/S
Medicago sativa L. · Alfalfa
M. Mirchev, M. Maslinkov, D. Dekov, D. Petkova, V. Toromanova
Pisum sativum L. · Pea
Poznanska Hodowla Roslin Sp. z o.o
Medicago sativa L. · Alfalfa
M. Mirchev, A. Atanasov, B. Yankov, D. Petkova, H. Yancheva, M. Grigorova
Fragaria L. · Strawberry
Peter Stoppel
Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt
CREA-CENTRO DI RICERCA PER LA CEREALICOLTURA (CREA-CI-FG)
Medicago sativa L. · Alfalfa
Gie Grass
Corylus avellana L. · Common hazel
RESPUBLIKANSKOE NAUCHNO-PROIZVODSTVENNOE DOCHERNEE UNITARNOE PREDPRITIE «INSTITUT PLODOVODSTVA»
Triticum aestivum L. · Bread wheat
Poljoprivredni Institut Osijek, HR