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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

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.

Boglarka

Active

Cicer arietinum L. · Chickpea

HU
2 records

Bodur

Terminated

Triticum durum Desf. · Durum wheat

Bc Institut d.d. Zagreb (HR)

HR
2 records

Castanea sativa Mill. · Sweet chestnut

FR
2 records

Avans

Active

Phaseolus vulgaris L. · Common bean

2 records

Abritus

Terminated

Phaseolus vulgaris L. · Common bean

2 records

X 2578

Withdrawn

Helianthus annuus L. · Sunflower

NORTHRUP KING

ES
1 record

Upsol veraflor

Protection expired

Helianthus annuus L. · Sunflower

Domaine Public (FR)

FR
1 record

Topaz

Terminated

Medicago sativa L. subsp. sativa · Alfalfa

AGRIPRO SEEDS

IT
1 record

Primadur

Active

Triticum L. · Wheat

GROUPE AGRICOLE ESSONNOIS

IT
1 record

Melody

Withdrawn

Fragaria x ananassa Duchesne ex Rozier · Garden strawberry

SCOTTISH CROP RESEARCH INSTITUTE

PL
2 records

LYDA

Active

Lens culinaris Medik. · Lentil

ITAP (ALBACETE)

ES
2 records

Ludogorie

Terminated

Phaseolus vulgaris L. · Common bean

Dimitar D. Genchev, Ivan D. Kiryakov, Milka V. Stoyanova

BG
1 record

KSP1

Active

Ipomoea batatas (L.) Lam. · Sweet potato

LEE BYUNG CHANCHO EUN-GI

RO
1 record

Corylus avellana L. · Common hazel

Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka

PL
1 record

Corylus avellana L. · Common hazel

Lubelski Ośrodek Doradztwa Rolniczego w Końskowoli

PL
1 record

Corylus avellana L. · Common hazel

Information not available - Contact NL authorities

NL
1 record

CARGILL 891

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

LES GOURGUES-G-CARGILL

ES
1 record

Bahrianyi

Application submitted

Corylus avellana L. · Common hazel

Matviienko, Mykola Khodakivska, IuliiaBublyk, Mykola

UA
2 records

Akorn

Active

Corylus avellana L. · Common hazel

Tsybenko Ihor

UA
2 records

Sheila

Withdrawn

Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea

Kwekerij Sidaco B.V.

1 record

SH 1923

Withdrawn

Saxifraga cortusifolia Siebold & Zucc.

Josef Heuger

1 record