Journal of Economic Entomology (1998) 91, 528-533

Peter R. Dentener, Sharon M. Alexander, Robert J. Petry, Glenda M. O'Connor, Philip J. Lester, Keren V. Bennett and John H. Maindonald (1998)
Effect of combined methyl bromide fumigation and cold storage treatment on Cydia pomonella (Lepidoptera: Tortricidae) mortality on apples
Journal of Economic Entomology 91 (2), 528-533
Abstract: Mortality responses of Cydia pomonella (L.) 1-d-old eggs and diapausing 5th instars to methyl bromide fumigation at 24 gm^-3 for 2 h, followed by cold storage at a range of temperatures (0.5-10°C) were determined on 'Red Delicious' and 'Granny Smith' apples. The 1-d-old eggs were more tolerant to the combined treatment than were diapausing 5th instars. Times for 99% mortality (LT₉₉s) in cold storage (0.5-4°C) following the fumigation treatment varied between 11.9 d (0.5^°C) and 12.8 d (4°C) and were not significantly different. LT₉₉s for 1-d-old eggs in cold storage only varied between 19.4 d (4°C) and 26.7 d (0.5°C) and were not significantly different. These results indicate that a quarantine protocol of fumigation with 24 gm^-3 methyl bromide for 2 h, followed by cold storage between 0.5°C and 4°C for 25 d, provides a high level of quarantine security.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Philip J. Lester

Research topic(s) for pests/diseases/weeds:
quarantine treatments/regulations/aspects

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cydia pomonella	Apple (Malus)