Journal of Economic Entomology (2018) 111, 141-145

Peter A. Follett, Allison Swedman and Bruce Mackey (2018)
Effect of low-oxygen conditions created by modified atmosphere packaging on radiation tolerance in Drosophila suzukii (Diptera: Drosophilidae) in sweet cherries
Journal of Economic Entomology 111 (1), 141-145
Abstract: Modified atmosphere packaging (MAP) creates a low-oxygen (O₂) environment that can increase the shelf life of fresh produce by decreasing respiration and the growth of pathogens. Low oxygen may also increase insect tolerance to irradiation (IR), and the use of MAP with products treated by IR to control quarantine pests before export may inadvertently compromise treatment efficacy. Spotted wing drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae) is a quarantine pest of stone and small fruits and a potential target for postharvest IR treatment. The effect of low oxygen generated by MAP at ambient temperatures on the radiation tolerance of D. suzukii infesting sweet cherries was examined. Early pupal stage D. suzukii were inserted into ripe sweet cherries and treated by 1) MAP + IR, 2) IR alone, 3) MAP alone, or 4) no MAP and no IR and held for adult emergence. Three types of commercially available MAP products were tested that produced different oxygen concentrations between 3 and 15%, and a sublethal radiation dose (60 Gy) was used to allow comparisons between the treatments. Xtend PP61 bags (3.2–4.8% O₂), Xtend PP71 bags (5.4–8.6% O₂), and Xtend PP53 bags (13.6–15.4% O₂) did not enhance survivorship to the adult stage in D. suzukii pupae irradiated at 60 Gy in sweet cherries. MAP use should not compromise phytosanitary IR treatment against D. suzukii in exported sweet cherries or other fruit.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Peter A. Follett

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Drosophila suzukii