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Strategy to control Plum Pox Virus damage (BIOFRUITNET Practice Abstract)

{Tool} Strategy to control Plum Pox Virus damage (BIOFRUITNET Practice Abstract). Creator(s): Vávra, Radek; Kaplan, Jiří; Schlesingerová, Gabriela and Maryška, Lukáš. Issuing Organisation(s): VSUO - Research and Breeding Institute of Pomology Holovousy. Biofruitnet Practice Abstract, no. 067. (2023)

[thumbnail of Strategy to control Plum Pox Virus damage] PDF - Published Version - English (Strategy to control Plum Pox Virus damage)
[thumbnail of Strategie ochrany k poškození virem Plum Pox Virus] PDF - Published Version - Czech/Česky (Strategie ochrany k poškození virem Plum Pox Virus)

Document available online at: https://orgprints.org/45928

Summary in the original language of the document

Growing PPV-resistant varieties combined with PPV-resistant rootstocks improve fruit-growing economics and financial return.
Practical recommendations
• HOST PLANTS: All stone fruit species, PPV mainly infects plum trees. Apricots, peaches, nectarines, and sweet and sour cherries can be infected by different strains of the virus
• SYMPTOMS of the Plum Pox Virus disease:
o On leaves: Ring-shaped chlorotic spots and marks, mostly diffused, bright green
o On fruits: Deformations, ring-, line- or pox-like depressions or shrivelling fruit
o Fruits have lower sugar content, worse appearance, and are unsuitable for fresh sale consumption
o Fruits fall prematurely to the ground, and fruit quality and yield is lower
o Infected trees have lower assimilation due to chlorotic spots, and tree vigour is lower
o PPV damage occurs mainly after planting of infected plant material, and the virus is spread by aphids in orchards
o Vegetative, especially by vegetative reproduction (scions, grafts)
o PPV can also be spread during tree pruning through non-disinfected pruning devices
• PROTECTION: Treatment against PPV does not exist yet, so the application of preventive measures is the only effective way of disease control. Direct control only reduces the next virus spreading
o PREVENTIVE MEASURES: Use certified virus-free plant material, and grow resistant varieties grafted onto resistant rootstocks to fully protect trees against PPV infection
o DIRECT MEASURES: Destroy all infested trees and control aphids (the vector of PPV transmission) for the purpose of decreasing the additional spreading of PPV within the orchard
• PPV-resistant plum varieties: Jojo, Jofela, Joganta, Jolina, and Moni
• PPV-resistant plum rootstocks: Docera 6, and Dospina 235
• Growing resistant varieties on resistant rootstocks avoid PPV infections in plum orchards

EPrint Type:Practice tool
What problem does the tool address?:Plum pox virus disease (Plum pox virus, PPV), also called sharka, is stone fruit species' most destructive viral disease. Fruits from infected trees are noticeably worse tasting and less sugary and, therefore, unsuitable for consumption. Damaged fruits fall prematurely to the ground, which makes the yields lower.
What solution does the tool offer?:Trees infected with PPV cannot be treated; therefore, applying preventive measures is the only effective technique to control the damage. Therefore, planting virus-free certified material is an essential aspect. Growing resistant varieties help to avoid the spread of PPV infection in the orchard.
Country:Czech Republic
Type of Practice Tool:Practice abstracts
Keywords:Virus-free certified planting material, fruit quality, flavour
Agrovoc keywords:
virus-free plants
fruit quality
Subjects: Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: European Union > Horizon 2020 > Biofruitnet
Czech Republic > Other institutions Czech republic
European Union > Organic Farm Knowledge
Horizon Europe or H2020 Grant Agreement Number:862850
Related Links:https://organic-farmknowledge.org/tool/45928, https://biofruitnet.eu
Project ID:ofk
Deposited By: Basler, Andreas
ID Code:45928
Deposited On:26 Apr 2023 09:18
Last Modified:02 May 2024 10:32
Document Language:English, Czech/Česky

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