Pests
Thysanoptera
Thrips are small, cryptic, sap-sucking pests that damage plant tissues and transmit viral diseases. Resistance to them is complex and is more often described qualitatively rather than through strict immunity codes.
Mentioned in descriptions 1 399 varieties reference book.
Thrips are small insects with piercing-sucking mouthparts that inhabit leaf axils, buds, and flowers. Their presence is manifested by the appearance of silvery discolored spots, streaks, and dots, as well as deformation, leaf curling, and premature shedding of plant organs. Small black dots, which are the pest's excrement, are often visible on the affected parts.
Varietal resistance to thrips is determined by genetically defined physiological and biochemical properties, such as the content of specific metabolites. Unlike many pathogens, there are no generally accepted international resistance codes for thrips; therefore, this trait is usually indicated in descriptions as relative resistance or based on an assessment score of susceptibility.
The degree of plant damage directly depends on external conditions, the age of the crop, and the pressure intensity of the pest population, which is capable of forming new biotypes. Genetic resistance to thrips is polygenic; therefore, under field conditions, even resistant genotypes may demonstrate varying reactions depending on the agro-ecosystem and the overall level of preventive measures.
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.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Mr pool Erik Olgaard
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Hazera Seeds B.V.
Allium porrum L. · Leek
VEGETABLE MONSANTO B.V.
Brassica oleracea L. (White Cabbage Group) · White cabbage
Masami Yamamoto
Allium cepa L. var. cepa · Onion
PLANTICO HODOWLA I NASIENNICTWO OGRODNICZE ZIELONKI SP. Z O.O.
Allium cepa L. var. cepa · Onion
Hazera Seeds B.V.
Allium porrum L. · Leek
Hazera Seeds B.V.
Allium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.
Allium cepa L. · Onion
Barnoczki Attila / Barnoczki Attilane / Balazs Imrene
Allium cepa L. var. cepa · Onion
Enza Zaden Beheer B.V.
Allium cepa L. var. cepa · Onion
PlantiCo Zielonki Sp. z o.o.
Allium porrum L. · Leek
Rijk Zwaan B.V.
Allium cepa L. var. cepa · Onion
Enza Zaden Beheer B.V.
Capsicum annuum L. · Bell pepper
Syngenta Seeds B.V.
Allium porrum L. · Leek
Domaine Public (FR)
Brassica oleracea L. (White Cabbage Group) · White cabbage
HM Clause Inc (US)
Chrysanthemum L. · Chrysanthemum
Dekker Breeding B.V
Chrysanthemum L. · Chrysanthemum
Cleangro Ltd
Brassica oleracea L. (White Cabbage Group) · White cabbage
HM Clause Inc (US)
Raphanus sativus L. var. sativus · Radish
Syngenta Seeds B.V.
Allium porrum L. · Leek
L. Ivanov, Y. Todorov, M. Ivanova
Capsicum annuum L. · Bell pepper
Yordanka Tosheva
Brassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
Allium cepa L. var. cepa · Onion
Bejo Zaden B.V., De Groot en Slot B.V.