Articles
Coniella granati – a new pathogen of pomegranates in Israel – postharvest fungicide screening for control of storage decay
Article number
1144_69
Pages
465 – 468
Language
English
Abstract
Pomegranate storage duration is limited by postharvest physiological and pathological disorders.
The latter include a wide range of pathogenic fungi: Botrytis cinerea, Alternaria spp., Penicillium spp., Aspergillus spp., Rhizopus stolonifer and Mucor spp.
In 2010, a new pathogen causing fruit decay, Coniella granati, appeared in commercial storage rooms in Israel, causing considerable losses.
The aim, of our study was to find a postharvest, fungicidal treatment to control decay development during storage.
Pomegranate fruit picked in early November were wound inoculated with a C. granati spore suspension.
After overnight incubation at 20°C and 95% RH, the fruit were divided into 9 lots and dipped in 8 different fungicides, or left untreated as a control.
The tested fungicides were: pyrimethanil, captan, fludioxinil, prochloraz, thiabendazole, fluopyram + tebuconazole, trifloxystrobin + tebuconazole.
When dry, the fruit were cooled to 7°C and packed in LDPE (Low Density Polyethylen) liners.
After 3 months storage at this temperature decay incidence was monitored.
The results showed that, among the fungicides tested, prochloraz and the two combinations containing tebuconazole were the most effective in controlling C. granati decay.
The latter include a wide range of pathogenic fungi: Botrytis cinerea, Alternaria spp., Penicillium spp., Aspergillus spp., Rhizopus stolonifer and Mucor spp.
In 2010, a new pathogen causing fruit decay, Coniella granati, appeared in commercial storage rooms in Israel, causing considerable losses.
The aim, of our study was to find a postharvest, fungicidal treatment to control decay development during storage.
Pomegranate fruit picked in early November were wound inoculated with a C. granati spore suspension.
After overnight incubation at 20°C and 95% RH, the fruit were divided into 9 lots and dipped in 8 different fungicides, or left untreated as a control.
The tested fungicides were: pyrimethanil, captan, fludioxinil, prochloraz, thiabendazole, fluopyram + tebuconazole, trifloxystrobin + tebuconazole.
When dry, the fruit were cooled to 7°C and packed in LDPE (Low Density Polyethylen) liners.
After 3 months storage at this temperature decay incidence was monitored.
The results showed that, among the fungicides tested, prochloraz and the two combinations containing tebuconazole were the most effective in controlling C. granati decay.
Publication
Authors
O. Nerya, A. Tzviling, H. Hibrahim, R. Ben-Arie
Keywords
Coniella granati, pomegranate, captan, fludioxinil, fluopyram, prochloraz, tebuconazole, thiabendazole, trifloxystrobin
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