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agronom.cc cultivar database

Pests

Weevils

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.

Sources10

Breakdown by crop

Nut Weevils on Common Hazel 32 Weevils on foamflower 9 Weevils — Garden strawberry 6 Alfalfa weevils 6 Heuchera weevils 5 Weevils on soft wheat 5 Weevils — Durum Wheat 5 Sunflower weevils 4 Weevils on white clover 3

Found in these crops

Common hazel 32 Common bean 11 Foamflower 9 Alfalfa 7 Garden strawberry 7 Rapeseed 6 Coral Flower 6 Bread wheat 5 Durum wheat 5 Sunflower 4 Red clover 3 White clover 3

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.

Pink Brushes

Terminated

Tiarella L. · Foamflower

CHARLES OLIVER

1 record

Ivory Twist

Terminated

Phygelius E. Mey. · Cape fuchsia

ROYCROFT STUART, ROYCROFT SUE

1 record

Branpara

Terminated

Photinia glabra (Thunb.) Franch. & Sav. · Japanese photinia

Robert J Cherry

1 record

Crazy Rasta

Active

Heuchera L. · Coral Flower

Diederik Scheys

1 record

CARBAP K74

Active

Musa x paradisiaca L. · Banana

Centre de coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Centre Africain de Recherches sur Bananiers et Plantains (CARBAP)

1 record

Livius

Withdrawn

Triticum aestivum L. · Bread wheat

Semundo B.V.

NL
2 records

Mambo

Withdrawn

Brassica rapa L. subsp. campestris (L.) A. R. Clapham · Field mustard

NILSSON ANDERS

SE
1 record

Albus

Active

Vicia faba L. var. equina St.-Amans · Horse bean

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

PL
2 records

Tito

Active

Triticum L. · Wheat

IT
1 record

PIONEER 531

Terminated

Medicago sativa L. · Alfalfa

Pioneer Hi-bred International Inc. (USA)

HR
1 record

Robin

Terminated

Lablab purpureus (L.) Sweet · Hyacinth bean

CZ
1 record

UNITO L35

Active

Corylus avellana L. · Common hazel

1 record

TURCA

Active

Prunus avium (L.) L. · Sweet cherry

1 record

Viana

Active

Castanea sativa Mill. · Sweet chestnut

1 record

UNITO 119

Active

Corylus avellana L. · Common hazel

1 record

Smolin

Active

Corylus avellana L. · Common hazel

1 record

Redos

Terminated

Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean

1 record