Modified atmospheres for the posthavest disinfestation of New Zealand persimmons
作者:
P. R. Dentener,
S.M. Peetz,
D. B. Birtles,
期刊:
New Zealand Journal of Crop and Horticultural Science
(Taylor Available online 1992)
卷期:
Volume 20,
issue 2
页码: 203-208
ISSN:0114-0671
年代: 1992
DOI:10.1080/01140671.1992.10421916
出版商: Taylor & Francis Group
关键词: persimmons;Diospyros kaki;insect disinfestation;lightbrown apple moth leafrollers;longtailed mealy bugs;greenhouse thrips;mites;controlled atmospheres;modified atmospheres;polymeric film bags;scrubbers;Epiphyas postvittana;Pseudococcus longispinus
数据来源: Taylor
摘要:
The responses of lightbrown apple moth (LBAM—Epiphyas postvittanaWalker) and long tailed mealy bug (Pseudococcus longispinusTargioni-Tozetti) on persimmons to controlled (CA) and modified atmosphere (MA) postharvest disinfestation treatments were determined. Atmospheres were generated using fruit (1) exposed to a continuous gas-flow apparatus (CA); (2) contained in a polymeric film bag with an oxygen scrubber (MA + scrubber); and (3) in a polymeric film bag under vacuum (MA + vac). LBAM larvae on fruit under CA were all killed after 4–7 days exposure to 0.5% O2, 5.3% CO2but 0.2% of the mealy bug larvae and adults survived. LBAM and mealy bugs were not killed after 7 days at 20°C under MA + scrubber conditions, but were killed after 28 days at 0°C. Only LBAM were killed under MA + vac. The time needed for complete kill of LBAM and mealy bugs under MA conditions was reduced to 14 days at 0°C when fruit were held for 4 days at 20°C before coolstorage at 0°C. The MA treatment shows commercial potential.
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