• Current Research on Agriculture and Life Sciences
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• v.32 no.3
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• pp.131-134
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• 2014

The thermal death kinetics of the Black timber bark beetle, Xylosandrus germanus, was investigated to develop a heat treatment for control of infested wood packing materials used to export goods. To determine the feasibility of microwave irradiation as an alternative control method, laboratory experiments irradiating wooden blocks of Douglas fir ($200{\times}200{\times}250mm$), which were artificially infested with adults, with 2.45 GHz of microwave energy. All (100%) Ambrosia beetle adults were killed by both hot water treatments and microwave irradiation at $52^{\circ}C$ and $58^{\circ}C$, respectively. Probit analyses estimated the internal wood temperature required to produce Probit (0.99) efficacy to be $64.7^{\circ}C$ (95% CI $62.4-69.9^{\circ}C$) at one minute after microwave treatment.

• Korean journal of applied entomology
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• v.56 no.2
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• pp.203-212
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• 2017

Thirty-three species of insect pests including of two-spotted spider mite, Tetranychus urticae Koch, and air-breathing land snail, Acusta despecta Sowerby, were observed on mulberry for producing mulberry fruits in Jeonbuk province from 2015 to 2016. Of these, 8 species of insect pests, including of mulberry thrips, Pseudodendrothrips mori Niwa, are regarded as major insect pests. Of the 25 species observed before harvesting, 6 species-P. mori, Anomoneura mori, Pseudaulacaspis pentagona, Baris deplanata, Menophra atrilineata and T. urticae-are regarded as major insect pests. In contrast, of the 20 species observed after harvesting, 5 species-P. mori, P. pentagona, Glyphodes pyloalis Walker, Hyphantria cunea Drury and T. urticae-are regarded as major insect pests. Eight of the major insect pest species and nine other insect pest species-including Hexcacentrus unicolor Serville, Malcus japonicus Ishihara et Hasegawa, Halyomorpha halys stal, Xylosandrus germanus Blandford, four species of Repidoptera (Bombyx mandarina Moore, Euproctis subflava Bremer, Acronicta major Bremer, Agrotis trifurca Butler), and Acusta despecta Sowerby-were observed at all sites studied, although occurrence of the insect pests observed on mulberry varied from site to site.

• Korean journal of applied entomology
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• v.50 no.4
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• pp.353-362
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• 2011

This study was conducted to elucidate the patterns of occurrence of bark beetles on deadwoods of Quercus serrata Fisher and Carpinus laxiflora Blume which are expected to increase due to climate change. The survey was carried out at the LTER site in Gwangneung forest in Gyeonggi Province in 2007-2008. Bark beetles were collected using emergence traps and attraction traps (funnel trap and window trap). A total of 408 beetles belonging to 12 species in two subfamilies were collected. Platypus koryoensis (Murayama) was the most abundant species. P. koryoensis and Xylosandrus germanus (Blandford) occurred mainly in deadwoods of Q. serrata. All other species, except two rare species, occurred commonly in deadwood of both tree species. Species richness and abundance of bark beetles were higher in the attraction traps than in the emergence traps, and higher in Q. serrata than in C. laxiflora. These indexes were higher in classes I-II or I-III than in classes III-IV or IV of deadwood. Bark beetle communities differed according to years and showed a little difference between tree species.