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Strategy to control Little Cherry Disease (BIOFRUITNET Practice Abstract)

{Tool} Strategy to control Little Cherry Disease (BIOFRUITNET Practice Abstract). Creator(s): Vávra, Radek; Kaplan, Jiří; Valentová, Lucie and Maryška, Lukáš. Issuing Organisation(s): VSUO - Research and Breeding Institute of Pomology Holovousy. Biofruitnet Practice Abstract, no. 068. (2023)

[thumbnail of Strategy to control Little Cherry Disease] PDF - Published Version - English (Strategy to control Little Cherry Disease)
[thumbnail of Strategie ochrany proti maloplodosti třešní a višní] PDF - Published Version - Czech/Česky (Strategie ochrany proti maloplodosti třešní a višní)

Document available online at: https://orgprints.org/45929

Summary in the original language of the document

Cultivation of varieties that are less sensitive to LChV will give a stable yield of high quality and good flavour sweet and sour cherry fruits.
Practical recommendations and information
• Two causal viruses exist: Little cherry virus-1 (LChV-1) and Little cherry virus-2 (LChV-2)
• SYMPTOMS can look like:
o Fruits are small, triangular, flattened, leathery peel
o Poorly coloured, tasteless fruits
o Reduced sugar content
o Premature reddening of leaves
o Lower tree vigour, lower tree volume
o Plants can be infected without any visible symptoms (often on ornamental species)
o Species of Prunus genus, mainly sweet and sour cherries, including ornamental species
o Infections on apricots, peaches, plums and almonds have not been recorded yet
• Virus-infected trees cannot be treated; treatment options against LChV do not exist yet, so only the application of preventive measures is effective
• Vegetative virus transmission is possible, especially with infected planting material and with vegetative propagation (e.g., scions, grafts)
• LChV-2 virus is also transmitted by the maple borer (Phenacoccus aceris); the pest vector for LChV-1 is unknown
• Reliable detection of the virus is only possible by molecular methods (RT-PCR)
o PREVENTIVE MEASURES: Healthy plant material, monitoring of maple borer upon confirmation of LChV-2 infections
o DIRECT MEASURES: Destroy all infested trees, direct control of the vector (maple borer)
• Avoid growing of LChV sensitive varieties such as Lambert, Lapins, Sam, Van, Celeste, Sweetheart, and Bing (fully resistant varieties are not known)

EPrint Type:Practice tool
What problem does the tool address?:Little cherry virus (LChV) causing small, poorly coloured, tasteless fruits occurs worldwide in all cherry growing areas. It has been detected in several European countries, e.g., Belgium, Italy, Germany, Poland, Romania, Greece, Switzerland, Great Britain, and the Czech Republic.
What solution does the tool offer?:Use healthy, virus-free certified planting material, preferably of European origin. Avoid growing Little cherry virus-sensitive varieties and monitor pest disease vectors to help regulate disease spreading and decrease damage.
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/45929, https://biofruitnet.eu
Project ID:ofk
Deposited By: Basler, Andreas
ID Code:45929
Deposited On:26 Apr 2023 09:32
Last Modified:02 May 2024 10:32
Document Language:English, Czech/Česky

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