The Experts below are selected from a list of 21 Experts worldwide ranked by ideXlab platform
Dov Prusky - One of the best experts on this subject based on the ideXlab platform.
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Integration of pre- and postharvest treatments for the control of black spot caused by Alternaria alternata in stored persimmon fruit
Postharvest Biology and Technology, 2011Co-Authors: Ilana Kobiler, Miriam Akerman, Leah Huberman, Dov PruskyAbstract:Abstract In Israel, black spot caused by Alternaria alternata is the main postharvest factor that impairs the quality and reduces the storability of persimmon fruit (Diospyros kaki cv. Triumph). The fungus infects the fruit in the orchard and remains quiescent until harvest. After harvest, the pathogen slowly colonizes the fruit during storage at 0 °C, which elicits black spot symptom development 2–3 months after storage entry. A commercial postharvest dip treatment in chlorine at 500 mg L−1, released from sodium Troclosene tablets, effectively controlled black spot in fruit stored for up to 2 months. However, decay incidence increased as the length of storage was extended beyond 2.5 months. The long incubation period that precedes black spot symptom development after harvest enabled the development of a series of integrative approaches for application at the pre- and postharvest stages, in combination with the commercial chlorine dip treatment, to improve the control of black spot disease. Preharvest treatments included treatment with the cytokinin-like N1-(2-chloro-4-pyridyl)-N3-phenylurea (CPPU) 30 d after fruit set, or a single spray with the curative fungicide polyoxin B 14 d before harvest, and when one of these was applied in combination with the postharvest chlorine dip treatment, the black spot infected area was reduced by 3 and 60%, respectively, compared with the chlorine dip alone. At the postharvest stage, fogging during storage, or post-storage on-line spraying with sodium Troclosene, when applied in combination with the postharvest chlorine dip, improved the percentage of marketable fruit by 2 or 10%, respectively, compared with the chlorine dip alone. The results indicate that postharvest pathogens that show a slow colonization pattern might enable the integration of pre- and postharvest disease control methods to improve quality and reduce postharvest disease development.
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Postharvest fungicide treatments in mango fruits according to the level of quiescent infection of pathogens at harvest
Acta Horticulturae, 2004Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing - HWB) treatment for 15 - 20 s with 225 μg ml -1 prochloraz was the most effective treatment to control Alternaria rot in fruits with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercially used treatment of 900 μg ml prochloraz spray. However Alternaria rot in mango fruits with intermediate levels of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml -1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruits with a RQIS of 5. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications, are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
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The level of quiescent infection of Alternaria alternata in mango fruits at harvest determines the postharvest treatment applied for the control of rots during storage
Postharvest Biology and Technology, 2002Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:Abstract The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing-HWB) treatment for 15–20 s with 225 μg ml−1 prochloraz was the most effective treatment to control Alternaria rot in fruit with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercial treatment of 900 μg ml−1 prochloraz spray. However, Alternaria rot in mango fruit with an intermediate level of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml−1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruit with a RQIS of five. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
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Postharvest chlorine treatments for the control of the persimmon black spot disease caused by Alternaria alternata
Postharvest Biology and Technology, 2001Co-Authors: Dov Prusky, Ilana Kobiler, Dani Eshel, Nir Yakoby, Delila Beno-moualem, Miriam Ackerman, Yohanan Zuthji, Ruth Ben ArieAbstract:Abstract Black-spot symptoms, caused by Alternaria alternata, develop in ‘Triumph’ persimmon fruit during prolonged storage at −1oC. Preharvest dip treatment in the organic chlorine compound Troclosene sodium extended the storage life of the fruit by delaying development of black-spot disease (BSD). Troclosene sodium was more stable and efficient for the control of A. alternata than calcium hypochlorite. At 500 μg ml−1 Troclosene sodium significantly reduced the development of BSD in persimmon fruit sampled in 15 orchards in different growing regions of Israel. Following commercial dipping and storage at −1oC, the percentage of marketable fruit after 4 months of storage was 15–40% higher than in untreated fruit. Present results suggest that the BSD can be controlled by a simple dip treatment with chlorine disinfectant.
Ilana Kobiler - One of the best experts on this subject based on the ideXlab platform.
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Integration of pre- and postharvest treatments for the control of black spot caused by Alternaria alternata in stored persimmon fruit
Postharvest Biology and Technology, 2011Co-Authors: Ilana Kobiler, Miriam Akerman, Leah Huberman, Dov PruskyAbstract:Abstract In Israel, black spot caused by Alternaria alternata is the main postharvest factor that impairs the quality and reduces the storability of persimmon fruit (Diospyros kaki cv. Triumph). The fungus infects the fruit in the orchard and remains quiescent until harvest. After harvest, the pathogen slowly colonizes the fruit during storage at 0 °C, which elicits black spot symptom development 2–3 months after storage entry. A commercial postharvest dip treatment in chlorine at 500 mg L−1, released from sodium Troclosene tablets, effectively controlled black spot in fruit stored for up to 2 months. However, decay incidence increased as the length of storage was extended beyond 2.5 months. The long incubation period that precedes black spot symptom development after harvest enabled the development of a series of integrative approaches for application at the pre- and postharvest stages, in combination with the commercial chlorine dip treatment, to improve the control of black spot disease. Preharvest treatments included treatment with the cytokinin-like N1-(2-chloro-4-pyridyl)-N3-phenylurea (CPPU) 30 d after fruit set, or a single spray with the curative fungicide polyoxin B 14 d before harvest, and when one of these was applied in combination with the postharvest chlorine dip treatment, the black spot infected area was reduced by 3 and 60%, respectively, compared with the chlorine dip alone. At the postharvest stage, fogging during storage, or post-storage on-line spraying with sodium Troclosene, when applied in combination with the postharvest chlorine dip, improved the percentage of marketable fruit by 2 or 10%, respectively, compared with the chlorine dip alone. The results indicate that postharvest pathogens that show a slow colonization pattern might enable the integration of pre- and postharvest disease control methods to improve quality and reduce postharvest disease development.
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Postharvest fungicide treatments in mango fruits according to the level of quiescent infection of pathogens at harvest
Acta Horticulturae, 2004Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing - HWB) treatment for 15 - 20 s with 225 μg ml -1 prochloraz was the most effective treatment to control Alternaria rot in fruits with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercially used treatment of 900 μg ml prochloraz spray. However Alternaria rot in mango fruits with intermediate levels of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml -1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruits with a RQIS of 5. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications, are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
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The level of quiescent infection of Alternaria alternata in mango fruits at harvest determines the postharvest treatment applied for the control of rots during storage
Postharvest Biology and Technology, 2002Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:Abstract The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing-HWB) treatment for 15–20 s with 225 μg ml−1 prochloraz was the most effective treatment to control Alternaria rot in fruit with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercial treatment of 900 μg ml−1 prochloraz spray. However, Alternaria rot in mango fruit with an intermediate level of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml−1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruit with a RQIS of five. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
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Postharvest chlorine treatments for the control of the persimmon black spot disease caused by Alternaria alternata
Postharvest Biology and Technology, 2001Co-Authors: Dov Prusky, Ilana Kobiler, Dani Eshel, Nir Yakoby, Delila Beno-moualem, Miriam Ackerman, Yohanan Zuthji, Ruth Ben ArieAbstract:Abstract Black-spot symptoms, caused by Alternaria alternata, develop in ‘Triumph’ persimmon fruit during prolonged storage at −1oC. Preharvest dip treatment in the organic chlorine compound Troclosene sodium extended the storage life of the fruit by delaying development of black-spot disease (BSD). Troclosene sodium was more stable and efficient for the control of A. alternata than calcium hypochlorite. At 500 μg ml−1 Troclosene sodium significantly reduced the development of BSD in persimmon fruit sampled in 15 orchards in different growing regions of Israel. Following commercial dipping and storage at −1oC, the percentage of marketable fruit after 4 months of storage was 15–40% higher than in untreated fruit. Present results suggest that the BSD can be controlled by a simple dip treatment with chlorine disinfectant.
Miriam Akerman - One of the best experts on this subject based on the ideXlab platform.
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Integration of pre- and postharvest treatments for the control of black spot caused by Alternaria alternata in stored persimmon fruit
Postharvest Biology and Technology, 2011Co-Authors: Ilana Kobiler, Miriam Akerman, Leah Huberman, Dov PruskyAbstract:Abstract In Israel, black spot caused by Alternaria alternata is the main postharvest factor that impairs the quality and reduces the storability of persimmon fruit (Diospyros kaki cv. Triumph). The fungus infects the fruit in the orchard and remains quiescent until harvest. After harvest, the pathogen slowly colonizes the fruit during storage at 0 °C, which elicits black spot symptom development 2–3 months after storage entry. A commercial postharvest dip treatment in chlorine at 500 mg L−1, released from sodium Troclosene tablets, effectively controlled black spot in fruit stored for up to 2 months. However, decay incidence increased as the length of storage was extended beyond 2.5 months. The long incubation period that precedes black spot symptom development after harvest enabled the development of a series of integrative approaches for application at the pre- and postharvest stages, in combination with the commercial chlorine dip treatment, to improve the control of black spot disease. Preharvest treatments included treatment with the cytokinin-like N1-(2-chloro-4-pyridyl)-N3-phenylurea (CPPU) 30 d after fruit set, or a single spray with the curative fungicide polyoxin B 14 d before harvest, and when one of these was applied in combination with the postharvest chlorine dip treatment, the black spot infected area was reduced by 3 and 60%, respectively, compared with the chlorine dip alone. At the postharvest stage, fogging during storage, or post-storage on-line spraying with sodium Troclosene, when applied in combination with the postharvest chlorine dip, improved the percentage of marketable fruit by 2 or 10%, respectively, compared with the chlorine dip alone. The results indicate that postharvest pathogens that show a slow colonization pattern might enable the integration of pre- and postharvest disease control methods to improve quality and reduce postharvest disease development.
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Postharvest fungicide treatments in mango fruits according to the level of quiescent infection of pathogens at harvest
Acta Horticulturae, 2004Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing - HWB) treatment for 15 - 20 s with 225 μg ml -1 prochloraz was the most effective treatment to control Alternaria rot in fruits with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercially used treatment of 900 μg ml prochloraz spray. However Alternaria rot in mango fruits with intermediate levels of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml -1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruits with a RQIS of 5. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications, are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
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The level of quiescent infection of Alternaria alternata in mango fruits at harvest determines the postharvest treatment applied for the control of rots during storage
Postharvest Biology and Technology, 2002Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:Abstract The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing-HWB) treatment for 15–20 s with 225 μg ml−1 prochloraz was the most effective treatment to control Alternaria rot in fruit with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercial treatment of 900 μg ml−1 prochloraz spray. However, Alternaria rot in mango fruit with an intermediate level of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml−1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruit with a RQIS of five. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
Yoram Fuchs - One of the best experts on this subject based on the ideXlab platform.
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Postharvest fungicide treatments in mango fruits according to the level of quiescent infection of pathogens at harvest
Acta Horticulturae, 2004Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing - HWB) treatment for 15 - 20 s with 225 μg ml -1 prochloraz was the most effective treatment to control Alternaria rot in fruits with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercially used treatment of 900 μg ml prochloraz spray. However Alternaria rot in mango fruits with intermediate levels of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml -1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruits with a RQIS of 5. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications, are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
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The level of quiescent infection of Alternaria alternata in mango fruits at harvest determines the postharvest treatment applied for the control of rots during storage
Postharvest Biology and Technology, 2002Co-Authors: Dov Prusky, Yavin Shalom, Ilana Kobiler, Miriam Akerman, Yoram FuchsAbstract:Abstract The effectiveness of different postharvest treatments to control different levels of quiescent infections of Alternaria alternata causing Alternaria rot in mango fruits during storage was compared. A combined hot water spray and fruit brushing (hot water brushing-HWB) treatment for 15–20 s with 225 μg ml−1 prochloraz was the most effective treatment to control Alternaria rot in fruit with a high relative quiescent infected surface (RQIS) rating of 36 at harvest. Comparable control was obtained with the commercial treatment of 900 μg ml−1 prochloraz spray. However, Alternaria rot in mango fruit with an intermediate level of RQIS rating of 25 was controlled by HWB treatment alone or HWB with chlorine (300 μg ml−1 Troclosene Na). HWB alone was effective enough to control postharvest decay in fruit with a RQIS of five. Present results have indicated that effectiveness of postharvest HWB and prochloraz applications are dependent on the quiescent infected area of the fruit by A. alternata at harvest. A RQIS rating, before harvest, has resulted in the use of effective, mild, fungicides as a single postharvest treatment thus avoiding wide use of less friendly synthetic fungicides.
Ruth Ben Arie - One of the best experts on this subject based on the ideXlab platform.
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Postharvest chlorine treatments for the control of the persimmon black spot disease caused by Alternaria alternata
Postharvest Biology and Technology, 2001Co-Authors: Dov Prusky, Ilana Kobiler, Dani Eshel, Nir Yakoby, Delila Beno-moualem, Miriam Ackerman, Yohanan Zuthji, Ruth Ben ArieAbstract:Abstract Black-spot symptoms, caused by Alternaria alternata, develop in ‘Triumph’ persimmon fruit during prolonged storage at −1oC. Preharvest dip treatment in the organic chlorine compound Troclosene sodium extended the storage life of the fruit by delaying development of black-spot disease (BSD). Troclosene sodium was more stable and efficient for the control of A. alternata than calcium hypochlorite. At 500 μg ml−1 Troclosene sodium significantly reduced the development of BSD in persimmon fruit sampled in 15 orchards in different growing regions of Israel. Following commercial dipping and storage at −1oC, the percentage of marketable fruit after 4 months of storage was 15–40% higher than in untreated fruit. Present results suggest that the BSD can be controlled by a simple dip treatment with chlorine disinfectant.
