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Evaluation of tomato production systems at Bowen in mitigating the risk of fruit fly infestation: a systems approach for market access

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Subramaniam, S. and Jackson, K. (2015) Evaluation of tomato production systems at Bowen in mitigating the risk of fruit fly infestation: a systems approach for market access. Acta Horticulturae (1105). pp. 371-378. ISSN 0567-7572

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Article Link: http://dx.doi.org/10.17660/ActaHortic.2015.1105.53


Queensland fruit flies Bactrocera tryoni and B. neohumeralis are considered major quarantine pests of tomato, a major crop in the horticultural production district around Bowen, North Queensland, Australia. Preharvest and/or postharvest treatments are required to meet the market access requirements of both domestic and international trading partners. The suspension from use of dimethoate and fenthion, the two insecticides used for fruit fly control, has resulted in the loss of both pre and postharvest uses in fresh tomato. Research undertaken quantitatively at Bowen evaluated the effectiveness of pre-harvest production systems without specific fruit fly controls and postharvest mitigation measures in reducing the risk of fruit fly infestation in tomato. A district-wide trapping using cue-lure baited traps was undertaken to determine fruit fly seasonal patterns in relation to the cropping seasons.
A total of 17,626 field-harvested and 11,755 pack-house tomatoes were sampled from ten farms over three cropping seasons (2006-2009). The fruit were incubated and examined for fruit fly infestation. No fruit fly infested fruit were recorded over the three seasons in either the field or the pack-house samples. Statistical analyses showed that upper infestation levels were extremely low (between 0.025 and 0.062%) at the 95% confidence level. The trap catches showed a seasonal pattern in fruit fly activity, with low numbers during the autumn and winter months, rising slightly in spring and peaking in summer. This seasonal pattern was similar over the four seasons. The main two species of fruit fly caught were B. tryoni and B. neohumeralis. Based on the results, it is clear that the risk of fruit fly infestation is extremely low under the current production systems in the Bowen region.

Item Type:Article
Business groups:Horticulture and Forestry Science
Subjects:Science > Entomology
Science > Invasive Species > Plants > Eradication and containment
Plant culture > Fruit and fruit culture
Plant pests and diseases
Live Archive:21 Apr 2016 02:52
Last Modified:03 Sep 2021 16:50

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