home    about    browse    search    latest    help 
Login | Create Account

Susceptibility of apricot cultivars to blossom brown rot (BIOFRUITNET Practice Abstract)

{Tool} Susceptibility of apricot cultivars to blossom brown rot (BIOFRUITNET Practice Abstract). Creator(s): Parveaud, Claude-Eric. Issuing Organisation(s): GRAB - Groupe de Recherche en Agriculture Biologique. Biofruitnet Practice Abstract, no. 066. (2022)

[thumbnail of Susceptibility of apricot cultivars to blossom brown rot] PDF - Published Version - English (Susceptibility of apricot cultivars to blossom brown rot)
[thumbnail of Sensibilité variétale des abricotiers aux monilioses sur fleurs] PDF - Published Version - French/Francais (Sensibilité variétale des abricotiers aux monilioses sur fleurs)
[thumbnail of 2023-04-21 15_19_30-Susceptibility of apricot cultivars to blossom brown rot.png]
Image (PNG) - Cover Image - English

Document available online at: https://orgprints.org/44728

Summary in the original language of the document

Choosing low susceptible cultivars to BBR decreases the risk to economic damage and limits the use of plant
protection products.
Practical recommendation
• Infection: The infection of the flowers depends on climatic conditions (e.g., precipitation, humidity, tem-perature), phenological stages and cultivar susceptibility. The risk of infection is high when it rains between phenological stages D (opening of petals) and F (end of flowering). Symptoms occur around 30-35 days after flowering.
• Diagnostic: Symptoms of BBR can be confused with those of the Pseudomonas canker (PC). However, BBR starts from the tip of the branches, while PC usually starts at the basis of branches. While PC can attack single trees, BBR attacks are broader. The grey mycelium of BBR can be observed on flowers when condi-tions are wet (Picture B). On a petri dish, it appears in several layers (Picture C).
• Cultivars: Prefer a choice of varieties allowing for staggered flowering dates, to limit the risks of a year without harvest. The table below shows the susceptibility of 44 apricot cultivars to BBR, assessed in experiments conducted by GRAB and FiBL. It can be used to help choose cultivars.

EPrint Type:Practice tool
What problem does the tool address?:Monilinia ssp. causes blossom brown rot (BBR) (Picture A) leading to necrosis of flowers and shoots, and up to 80% fruit loss. Most of the apricot cultivars are susceptible to BBR and the efficacy of plant protection products is low.
What solution does the tool offer?:Knowing the susceptibility of apricot cultivars when planting a new organic orchard is crucial. We propose a list of assessed cultivars suitable for organic apricot orchards establishment.
Type of Practice Tool:Practice abstracts
Keywords:Blossom brown rot, Monilinia, Apricot, Cultivar, Susceptibility
Agrovoc keywords:
disease resistance
Subjects: Crop husbandry > Production systems > Fruit and berries
Crop husbandry > Crop health, quality, protection
Research affiliation: European Union > Horizon 2020 > Biofruitnet
France > GRAB - Groupe de Recherche en Agriculture biologique
European Union > Organic Farm Knowledge
Horizon Europe or H2020 Grant Agreement Number:862850
Related Links:https://organic-farmknowledge.org/tool/44728, https://biofruitnet.eu
Project ID:ofk
Deposited By: Basler, Andreas
ID Code:44728
Deposited On:09 Dec 2022 17:30
Last Modified:02 May 2024 10:32
Document Language:English, French/Francais

Repository Staff Only: item control page