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1 June 2007 Ultralow Oxygen Treatment for Postharvest Control of Western Flower Thrips on Broccoli
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Abstract

Laboratory studies were conducted to develop ultralow oxygen (ULO) treatment for controlling western flower thrips,Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), on broccoli at a low temperature of 1°C. Complete control was achieved in 5 d at 0.003% oxygen. Oxygen level affected efficacy of ULO treatment. At a higher oxygen level of 0.03%, 6-d treatment killed ≈85% of thrips, and 10-d treatment killed all thrips. The 5-d ULO treatment with 0.003% oxygen was successfully tested on iced commercial broccoli of several cultivars without any noticeable negative effects on shelf-life and postharvest quality. The ULO treatment provided a safe and effective alternative to methyl bromide fumigation for postharvest control of western flower thrips on exported broccoli for industrial development.

Yong-Biao Liu "Ultralow Oxygen Treatment for Postharvest Control of Western Flower Thrips on Broccoli," Journal of Economic Entomology 100(3), 717-722, (1 June 2007). https://doi.org/10.1603/0022-0493(2007)100[717:UOTFPC]2.0.CO;2
Received: 10 October 2006; Accepted: 13 February 2007; Published: 1 June 2007
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