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Hot water treatment to control Gloeosporium disease on apples during long-term storage.

Author(s) : TRIERWEILER B., SCHIRMER H., TAUSCHER B.

Type of article: Article

Summary

Synthetic fungicide treatments are not allowed in organic apple orchards a few weeks before harvest to reduce postharvest diseases during long-term storage. Hot water treatments (53 °C, 2 minutes) of organically grown apples are able to control Gloeosporium disease, the most dangerous fungal disease of organically produced apples during storage. A reduction of Gloeosporium rot below 10% after a storage time of 5 to 6 months could be achieved with hot water treatments after harvest, irrespective of storage conditions (cold storage or controlled atmosphere storage). In comparison, the authors found over 90% disease on untreated apples stored at 1 °C in air, and even 40% of these apples stored under controlled atmosphere showed the typical Gloeosporium rot after 5 to 6 months of storage. Investigations on the internal quality of hot water treated apples showed no difference between the treated and untreated (control) apples.

Details

  • Original title: Hot water treatment to control Gloeosporium disease on apples during long-term storage.
  • Record ID : 2005-0744
  • Languages: English
  • Source: J. appl. Bot. - vol. 77 - n. 5-6
  • Publication date: 2003

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