Seedbed inspections underestimate the overall incidence of ratoon stunting disease

Young, Anthony (2016) Seedbed inspections underestimate the overall incidence of ratoon stunting disease. International Sugar Journal, 118 (1413). pp. 254-258. ISSN 0020-8841


In Australia, only prospective seedbeds are routinely screened for ratoon stunting disease (RSD). As seedbeds
may reasonably be considered to be the healthiest cane available to a grower, it may be expected that there would
be a higher incidence of RSD in commercial fields. The novel RSD diagnostic, LSB-PCR, was used to screen 154 grower
seedbeds during the 2015 seedbed inspections, in addition to 24 fields that were nominated for plough-out, and 15
fields that were being assessed as part of harvest best-practice trials. While the disease was detected in 10 (6.5%)
grower seedbeds, it was found in 6 (25%) plough-out fields and 5 (33%) harvest best-practice trial fields. The overall
28.2% RSD incidence in the 39 commercial fields screened is statistically significantly higher than the incidence
observed in 154 seedbed inspections (p=0.0001). This paper discusses the role of possible sampling bias, sampling
strategy and diagnostic technique employed in determining the incidence and impact of RSD in the Australian sugar
industry, in addition to improvements in RSD management at Harwood.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright Informa Agra. Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 24 Feb 2017 03:21
Last Modified: 28 Aug 2017 05:02
Uncontrolled Keywords: Leifsonia xyli subsp. xyli, leaf sheath biopsy PCR, resistant varieties, sugarcane
Fields of Research : 07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Socio-Economic Objective: D Environment > 96 Environment > 9604 Control of Pests, Diseases and Exotic Species > 960413 Control of Plant Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments

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