Pests
Aleyrodidae
The whitefly is a dangerous pest that damages plants by sucking phloem sap and transmitting viruses. Varietal resistance is provided by physical and chemical characteristics of plant tissues that reduce their attractiveness to the insect.
Mentioned in descriptions 252 varieties reference book.
The whitefly appears as a small insect, with colonies concentrating on the underside of young leaves. Typical signs of infestation include a "white cloud" when plants are shaken, a sticky honeydew coating, subsequent development of sooty mold, the appearance of chlorotic spots, and tissue deformation.
A variety's resistance to whitefly is determined by its ability to limit pest development through leaf texture or the specific composition of metabolites. Genetic resistance is assessed by breeding companies using standardized codes, though the level of protection may vary depending on the pest population's adaptation to a specific biotype.
The effectiveness of varietal resistance depends directly on growing conditions, as plant stress caused by disrupted nutrient or irrigation regimes increases their attractiveness to insects. Complete immunity is extremely rare; therefore, breeding achievements require supplementation with biological and physical control methods.
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.
hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner
Syngenta Seeds B.V.
Phaseolus vulgaris L. · Common bean
Syngenta Seeds B.V.
x Petchoa J. M. H. Shaw · Petchoa
Moriya Kawashima
Scaevola aemula R. Br. · Fairy fan-flower
Patrick Courtney
Sutera Roth · Sutera
Talmadge Paul
Capsicum annuum L. · Bell pepper
Cathy Thome
Gossypium hirsutum L. · Upland cotton
GROWER SEED ASS.
Solanum lycopersicum L. · Tomato
Enza Zaden Beheer B.V.
Gossypium hirsutum L. · Upland cotton
PROGEN SEED INC.
Gossypium hirsutum L. · Upland cotton
PROGEN SEED INC.
Solanum lycopersicum L. · Tomato
KAGOME AGRI-BUSINESS RESEARCH AND DEVELOPMENT CENTER, UNIPESSOAL LDA
Cucurbita pepo L. · Field pumpkin
PETOSEED CO
Solanum lycopersicum L. · Tomato
Pieterpik B.V.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
INTERSEMILLAS SAU
Solanum lycopersicum L. · Tomato
Kees Konst
x Petchoa J. M. H. Shaw · Petchoa
Moriya Kawashima
Anisodontea scabrosa (L.) Bates
G. J. MOOLMAN
Cuphea hyssopifolia Kunth · False heather
Florensis B.V.
Agastache Clayt. ex Gronov. · Giant hyssop
Kievit Christa
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Brassica oleracea L. (White Cabbage Group) · White cabbage
Solanum lycopersicum L. · Tomato
Brassica oleracea L. (Brussels Sprouts Group) · Brussels sprouts
Gossypium L. · Cotton