Diseases
Cydonia oblonga Mill.
The main bacteriosis of quince is fire blight, caused by the bacterium Erwinia amylovora. The crop is highly susceptible to the pathogen, which manifests through wilting of inflorescences, necrosis of shoots, leaves, and fruits, as well as the formation of cankers on the bark.
In the reference 28 varieties crop Quince, where this is mentioned in the description.
Quince is highly susceptible to the pathogen Erwinia amylovora. Symptoms include sudden wilting and blackening of inflorescences, drying of shoot tips with a hook-like curvature, as well as blackening and curling of leaves, which often remain attached to the branches. Necrotic reddish-brown spots develop on the fruits, leading to their mummification.
Wedge-shaped cankers form on trunks and branches, from which a bacterial exudate of amber-yellow or cloudy-white color is released under high humidity conditions. Specific resistance genes in quince have not been described, so breeding focuses on searching for quantitative resistance (QTL) and assessing susceptibility using scales from 1 to 9 or the percentage of shoot infection.
General information about the subject — on the page Bacterial diseases.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Cydonia oblonga Mill. · Quince
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Cydonia oblonga Mill. · Quince