PETER STAR
ActiveEuphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Peter JACOBSEN (DK)
Diseases
Tomato stolbur phytoplasma, Aster yellows phytoplasma
Stolbur is a dangerous plant disease caused by phytoplasmas and transmitted by sap-sucking insect vectors. The disease manifests as chlorosis, deformation of flowers and fruits, causing significant yield losses.
Mentioned in descriptions 618 varieties reference book.
Stolbur (phytoplasmosis) is an infectious disease caused by phytoplasmas. Symptoms of the infection include leaf dwarfing, chlorosis, and the development of a purple or pinkish hue. Marked deformation of flowers with greening petals is observed, while fruits become hard, tasteless, and contain lignified vascular tissues.
The development of the disease in open field conditions depends directly on the activity of insect vectors, particularly leafhoppers, and weather conditions: a hot and dry climate promotes their population growth. The infection persists in the rhizomes of perennial weeds, which act as pathogen reservoirs.
The evaluation of cultivar resistance is conducted by creating an artificial infection background followed by an analysis of morphological changes and the general condition of the plants. For accurate diagnosis, laboratory methods and indicator plant tests are used, with determinate varieties often showing lower susceptibility to infection.
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.
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
Peter JACOBSEN (DK)
Lilium L. · Lily
Voort, Cees A. Van Der|Katwijk, Netherlands
Malus Mill. · Apple
Seemüller Erich
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
The Regents of the University of California (US)
Fragaria L. · Strawberry
Voth, Victor|Santa Ana, CA / Bringhurst, Royce S.|Davis, CA
Beta vulgaris Sugar Beet Group · Sugar beet
Strube, D
Solanum lycopersicum L. · Tomato
Dutch American Plantbreeders Corp.
Prunus salicina Lindl. · Japanese plum
Montanari Domenico (IT)
Pyrus communis L. · European pear
Solanum melongena L. · Eggplant
ANDRIEVSKIJ ANATOLIJ SERGEEVICh
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
GULF COAST RES.AND EDUC.CENTER
Euphorbia pulcherrima Willd. ex Klotzsch · Poinsettia
GUTBIER| Gregor Gutbier
Prunus salicina Lindl. · Japanese plum
Zanzi Fruitgrowing Equipment Srl (IT)
Prunus armeniaca L. · Apricot
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Prunus armeniaca L. · Apricot
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Prunus persica (L.) Batsch · Peach
Floyd Zaiger (US)
Pyrus communis L. · European pear
Petruschke Michael
Prunus salicina Lindl. · Japanese plum
Salvatore Martelli
Prunus salicina Lindl. · Japanese plum
BRADFORD GLEN NORMAN & LOWELL
Prunus salicina Lindl. · Japanese plum
BRADFORD GLEN NORMAN & LOWELL
Ribes rubrum L. · Redcurrant
Prunus armeniaca L. · Apricot
Prunus armeniaca L. · Apricot
Prunus persica (L.) Batsch · Peach