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http://dx.doi.org/10.5656/KSAE.2017.04.0.002

Study on Hot Water Immersion Treatment for Control of Meloidogyne spp. and Pratylenchus spp. in a Ginger, Zingiber officinale  

Cho, Donghun (Plant Quarantine Technology Center, Animal and Plant Quarantine Agency)
Park, Kyonam (Plant Quarantine Technology Center, Animal and Plant Quarantine Agency)
Kim, Yangho (Plant Quarantine Technology Center, Animal and Plant Quarantine Agency)
Koh, Kyung-bong (Plant Quarantine Technology Center, Animal and Plant Quarantine Agency)
Park, Youngjin (Plant Quarantine Technology Center, Animal and Plant Quarantine Agency)
Publication Information
Korean journal of applied entomology / v.56, no.2, 2017 , pp. 171-177 More about this Journal
Abstract
Plant parasitic nematodes, Meloidogyne and Pratylenchus spp., are mostly detected in imported bulbs and tubers including a ginger, Zingiber officinale in Korea by quarantine inspection. However, there is little information on hot water immersion treatment (HWIT) for control of exotic nematodes, which induce economic loss by discard or send back to exporter, in imported gingers. In here, we determined that mortality of two plant parasitic nematodes and thermal stability of ginger. Meloidogyne and Pratylenchus spp. were completely killed at $48^{\circ}C$ and $49^{\circ}C$ for 30 sec by HWIT. Thermal conduction of Z. officinale to reach a target temperature as $50^{\circ}C$ take 10~32 min and 6~16 min for core and inner 5 mm region from surface, respectively. When ginger exposed at $51^{\circ}C$ for 30 min, growth of Z. officinale was not affected by heat treatment compared with control. Based on these results, HWIT at $51^{\circ}C$ for 30 min completely killed artificially infected juveniles of Meloidogyne spp. in Z. officinale. Therefore, this condition for HWIT will be used as fundamental information on phytosanitory to kill two plant parasitic nematodes without damage on ginger.
Keywords
Root-knot nematode; Root-lesion nematode; Hot water immersion treatment; Quarantine; Phytosanitory; Ginger;
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Times Cited By KSCI : 5  (Citation Analysis)
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