Articles
HOT WATER BRUSH: A NEW METHOD FOR THE CONTROL OF POST HARVEST DISEASE CAUSED BY ALTERNARIA ROT IN MANGO FRUITS
Article number
455_99
Pages
780 – 785
Language
Abstract
Alternaria alternata is the main postharvest pathogen attacking mango fruits in Israel.
The pathogen penetrates the fruit through lenticels during fruit growth and remain quiescent until harvest.
After harvest while the fruit ripens, the pathogen renews its development and black spots symptoms of decay appear on the fruit resulting in the reduction of fruit marketability.
No preharvest treatment are applied in Israel to prevent postharvest diseases.
Postharvest treatment are applied depending on the climatic conditions where the grove is located.
Fruits from groves located in dry regions where the postharvest incidence of decay is low, are only water washed.
However fruits from groves located in humid regions where the incidence of decay is very high, are treated with 900 μg/ml prochloraz.
A simple postharvest treatment that involves hot water spray at temperatures of 50–60 C while the fruits is brushed (hot water brush) was developed.
The treatment significantly reduced decay development by A. alternata to levels similar to these reached by using as prochloraz in several mango cultivars stored for 3 weeks at 14 C. When fruits were stored for longer periods of time, the fungicide was more effective than the hot water brush.
The possible use of this simple treatment in the postharvest mango industry to reduce the use of fungicides will be discussed.
The pathogen penetrates the fruit through lenticels during fruit growth and remain quiescent until harvest.
After harvest while the fruit ripens, the pathogen renews its development and black spots symptoms of decay appear on the fruit resulting in the reduction of fruit marketability.
No preharvest treatment are applied in Israel to prevent postharvest diseases.
Postharvest treatment are applied depending on the climatic conditions where the grove is located.
Fruits from groves located in dry regions where the postharvest incidence of decay is low, are only water washed.
However fruits from groves located in humid regions where the incidence of decay is very high, are treated with 900 μg/ml prochloraz.
A simple postharvest treatment that involves hot water spray at temperatures of 50–60 C while the fruits is brushed (hot water brush) was developed.
The treatment significantly reduced decay development by A. alternata to levels similar to these reached by using as prochloraz in several mango cultivars stored for 3 weeks at 14 C. When fruits were stored for longer periods of time, the fungicide was more effective than the hot water brush.
The possible use of this simple treatment in the postharvest mango industry to reduce the use of fungicides will be discussed.
Publication
Authors
D. Prusky, E. Falik, I. Kobiler, Y. Fuchs, G. Zauberman, E. Pesis, I. Roth, A. Weksler, M. Akerman, O. Ykutiely, A. Waisblum, A. Keinan, G. Ofek
Keywords
Disease control, prevention of quiescent infections
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