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Pommes 'Royal Gala' : efficacité d'un traitement à l'eau chaude comme prévention contre les insectes.

Response of 'Royal Gala' apples to hot water treatment for insect control.

Auteurs : SMITH K. J., LAY-YEE M.

Type d'article : Article

Résumé

The response of 'Royal gala' apples (Malus domestica Borkh.) to hot water treatments (HWTs) for the control of quarantine leafroller species was investigated. 'Royal Gala' apples from two orchards from each of two regions of New Zealand, and up to three harvest dates, were hot water treated at 44, 45 or 46 °C for 35, 40 or 45 min. Following treatment, fruit were placed in cold storage at 0.5 °C for 0, 4, 7 or 10 weeks, then held at 20 °C for 7 days prior to assessment for quality. A number of HWTs were associated with damage in the form of skin browning and internal breakdown. Incidence of damage increased with increasing temperature and treatment duration, and with increasing length of time in cold storage. This treatment is effective in controlling the quarantine leafroller pests, Epiphyas posttvittana (Walker), Planotortrix octo Dugdale and Ctenopseustis obliquana (Walker).

Détails

  • Titre original : Response of 'Royal Gala' apples to hot water treatment for insect control.
  • Identifiant de la fiche : 2001-0313
  • Langues : Anglais
  • Source : Postharvest Biol. Technol. - vol. 19 - n. 2
  • Date d'édition : 06/2000

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