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Host factors related to fruit rot of sweet cherry (Prunus avium L.) caused by Botrytis cinerea

Citation

Tarbath, MP and Measham, PF and Glen, M and Barry, KM, Host factors related to fruit rot of sweet cherry (Prunus avium L.) caused by Botrytis cinerea, Australasian Plant Pathology, 43, (5) pp. 513-522. ISSN 0815-3191 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Australasian Plant Pathology Society Inc

DOI: doi:10.1007/s13313-014-0286-7

Abstract

Fungal rot of sweet cherry fruit leads to reduced yield and quality at harvest. This study investigated a range of host factors related to cherry rot and also identified the main species present in latently infected-fruit and fruit with visible rot at harvest in a Tasmanian orchard. There was a significant effect of tree cultivar on total rot found at harvest, with the cultivar "Sweetheart" associated with almost double (approx. 25 % infection) the amount of rotten fruit compared to "Regina" and "Simone" (approx. 13 %). Harvest date may have had some influence on this result, as Sweetheart fruit were harvested 2 weeks later than the other cultivars, and there was a large rainfall event just before Sweetheart harvest (rainfall can increase disease spread and infection). Crop load did not influence the amount of rotten fruit found at harvest for any cultivar, although crop load was low in this season at this site. Removing fungicide application from the point of 50 % full bloom onwards did not significantly alter disease incidence. The study found that Botrytis cinerea was the dominant rot pathogen in cherry fruit at this site and season. No evidence of Monilinia species was found in this study with the methods used, despite it being typically associated with rot of stone fruit. Fruit quality characteristics were not indicators of disease susceptibility, as very few characteristics observed to correlate with disease at harvest.

Item Details

Item Type:Refereed Article
Keywords:Botrytis cinerea, Prunus avium, cultivar, crop load
Research Division:Agricultural and Veterinary Sciences
Research Group:Horticultural Production
Research Field:Horticultural Crop Protection (Pests, Diseases and Weeds)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Stone Fruit
Author:Tarbath, MP (Mr Michael Tarbath)
Author:Measham, PF (Dr Penny Measham)
Author:Glen, M (Dr Morag Glen)
Author:Barry, KM (Dr Karen Barry)
ID Code:90259
Year Published:2014
Deposited By:TIA - Research Institute
Deposited On:2014-03-31
Last Modified:2015-03-27
Downloads:0

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