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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 Coral Flower 6 Rapeseed 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.

Titana

Active

Lathyrus sativus L. · Grass pea

Diego Rubiales Olmedo^^^Ana Moral Jiménez

2 records

Ninja

Active

Tiarella L. · Foamflower

TERRA NOVA NURSERIES INC

2 records

Merlin

Terminated

Verbascum epixanthinum x Verbascum phoeniceum L.

Claire Wilson

2 records

Nogeone

Active

Geranium wallichianum D. Don ex Sweet · Wallich's geranium

Marco van Noort Breeding B.V.

2 records

Iron Butterfly

Active

Tiarella L. · Foamflower

TERRA NOVA NURSERIES INC

2 records

Cygnet

Active

Tiarella L. · Foamflower

TERRA NOVA NURSERIES INC

2 records

BF08

Active

Fuchsia L. · Fuchsia

Fred Hendriks

2 records

BRFU 07951

Active

Fuchsia L. · Fuchsia

Hubert Brandkamp

2 records

Black Velvet

Active

Tiarella L. · Foamflower

TERRA NOVA NURSERIES INC

2 records

Barbados

Active

Brassica napus var. napus · Rapeseed

KWS MOMONT RECHERCHE S.A.R.L

2 records

Markola

Terminated

Brassica oleracea L. (Kale Group) · Kale

EE
4 records

Flavio

Terminated

Triticum durum Desf. · Durum wheat

IT
3 records

Zaiga

Active

Pisum sativum L. · Pea

LV
4 records

Sophie

Active

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

NL
8 records

Ruse 13

Protection expired

Phaseolus vulgaris L. · Common bean

BG
2 records

NORSEMAN

Terminated

Trifolium pratense L. · Red clover

DK
2 records

Kirby

Terminated

Sinapis alba L. · White mustard

SE
2 records

Fascinato

Active

Capsicum annuum L. · Bell pepper

NL
2 records