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http://dx.doi.org/10.5656/KSAE.2016.11.0.072

Occurrence Pattern and Damage of Scirtothrips dorsalis (Thysanoptera: Thripidae) in Primary Host and Citrus Orchards on Jeju Island  

Hwang, Rok-Yeun (Citrus Research Institute, National Institute of Horticultural & Herbal science, Rural Development Administration)
Kim, Dong-Soon (Faculty of Bioscience and Industry, College of Applied Life Science, SARI, Jeju Nat'l. Univ., The Research Institute for Subtropical Agriculture and Biotechnology, Jeju National University)
Hyun, Jae-Wook (Citrus Research Institute, National Institute of Horticultural & Herbal science, Rural Development Administration)
Publication Information
Korean journal of applied entomology / v.55, no.4, 2016 , pp. 483-487 More about this Journal
Abstract
The damage of citrus fruits caused by Scirtothrips dorsalis Hood has being increased in Jeju, Korea. The seasonal abundance of S. dorsalis and its injury symptoms in citrus orchards have been studied since the endemic outbreak in Jeju, but studies for the occurrence pattern of S. dorsalis in citrus orchards influenced by adjacent primary hosts have not been fully conducted yet. We selected kiwi- and mango-citrus adjacent orchards to study the migration pattern of S. dorsalis toward to citrus orchards. Yellow-colored sticky traps were used for monitoring the seasonal abundance of S. dorsalis and their migration pattern in two orchards. In citrus orchards, also, we placed sticky traps at 0, 5, 10, 15 and 20 m apart from the border of kiwi orchard, and 0, 7 and 20 m apart from the border of mango orchard. The seasonal occurrence pattern of S. dorsalis caught on sticky traps were similar between two adjacent orchards. However, the abundances in kiwi or mango orchard was much higher than those of citrus. Also, it was found that densities, distribution and damage of S. dorsalis in citrus orchards depend highly on the distance from the border of kiwi and mango orchards. This result suggested that the primary hosts such as kiwi and mango plants influence the occurrence of S. dorsalis in adjacent citrus orchards. And this information may provide a basic direction for establishing the management strategy of S. dorsalis in citrus orchards.
Keywords
Citrus; Scirtothrips dorsalis; Host; Mango; Kiwi;
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Times Cited By KSCI : 4  (Citation Analysis)
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