• Korean journal of applied entomology
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• v.36 no.1
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• pp.73-76
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• 1997

This study was conducted to investigate the life cycle of Kunugia yamadai Nagano attacking Qriercrrs spp. in Chungju area, Korea during 1987-1989. The moth had one generation a year. Host plants of the species were Quercus acutissima, Q. serrata, Q. aliena, and Castanea crenata. And Q. dentata T., and Q variahilis B. were newly recognized as host plants of the insect. Young larvae were hatched from the overwintered eggs and fed on the leaves from late April to early August which took ahout 3 months. In mid-August, the fully grown larva made a rough cocoon and pupated at the ground debris or dense grass. The moths emerged from September to late October with a peak around mid-October. Female oviposited 121 eggs on average mostly on the bark of host plants at 131 cm ahove the ground.

• Korean journal of applied entomology
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• v.39 no.2
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• pp.83-87
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• 2000

This study was carried out to investigate the life history of Paralebeda plagifera femorata in 1998 and 1999. Ginkgo biloba was newly known to be a host plant for the species in this study. The moth has one generation a year. It overwinted as 6th instar larva on branches of the host plant. The 9th instar larva made a rough cocoon by webbing two or three leaves, and pupated on the branch on late June. The moths emerged from early July through early August with a peak around late July. A female oviposited 205 eggs on an average on the branch, twig, or leaf margin.

• Korean journal of applied entomology
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• v.21 no.4 s.53
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• pp.195-199
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• 1982

Data on population density of the pine moth, Dendrolimus spectabilis Butler, were collected in October at 9 permanent study plots for 13 years $(1968\~1980)$ and graphically analysed. Population density sowed peaks in 1970 and 1975 year and declines in 1972 and 1976 year, and similar trends have been observed over the country. Rainfall, particularly the maximum rainfall per day, in August seems to be a key factor resulting in the sudden decline in density and this could explain almost synchronous fluctuation. The intensity of rainfall in August affecting the decline if density was estimated to be more than 100mm per day.

• Korean journal of applied entomology
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• v.10 no.1
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• pp.43-48
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• 1971

This experiment was conducted to determine the most effective type of Bight·trap for pine catepillar moths (Dendrolimus spectabilis B.) and to investigate the environmental factors affecting the attractiveness of the moths.. The various types of light traps made used of: black light, white light, fluorescent light, yellow light, and red light and the environmental factors considered were rainfall, wind velocity and collecting time. All the traps were operated from 8 in the evening to midnight. The results obtained are summarized as follows; The most effective attraction of moths ($62\%$ of total number attracted) was observed with blacklight-lamp and the most abundant attraction of the moths was found from 8 to 10 in the evening. Attractiveness in terms of sex ratio attracted from 8 to 10 in the evening was found to the .approximately 7 female to 1 male, Environmental factors considered were found to have no influences in attractiveness of the moths in this experiment.

• Korean journal of applied entomology
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• v.61 no.1
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• pp.63-75
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• 2022

Semiochemicals including pheromone are chemicals used in chemical communication of insect. Semiochemicals have been widely used for population monitoring, mass trapping, and mating disruption of insect pest. In this review article, the current status of pheromone research of major forest insect pest in Korea such as Monochamus alternauts, M. saltuarius, Matsucoccus thunbergianae, Platypus koryoensis, Glyphodes perspectalis, Dioryctria abietella, Lymantria dispar, Synanthedon bicingulata, and Naxa seriaria was introduced, and the results were compared with those reported in other countries. Based on the analysis of current pheromone research of forest insect pests, future studies and development direction was suggested.

• Landscaping Tree
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• v.62 no.5_6
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• pp.15-18
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• 2001

• Journal of Korean Society of Forest Science
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• v.26 no.1
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• pp.67-67
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• 1975

• The Korean Journal of Pesticide Science
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• v.20 no.4
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• pp.361-368
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• 2016

Japanese pine sawyer (JPS), Monochamus alternatus is a vector insect of pine wood nematode, Bersaphlenchus xylophilus in Korea and Japanese pine forest. This study was to evaluate the possibility of biological control of JPS with Korean entomopathogenic nematodes (EPNs). Korean EPNs (Heterorhabditis sp. Gyeongsan, Steinernema carpocapsae GSN1, S. glaseri Dongrae and S. longicaudum Nonsan strain) were infested bate insect, Galleria mellonella in log of dead pine tree. Result showed that, S. carpocapsae GSN1 strain has the highest pathogenicity. Heterorhabditis sp. Gyeongsan and S. carpocapsae GSN1 had infested bate insect, which located in 7.5 cm depth of pine log. EPN has pathogenicity against larva and adult of JPS. Spray application of EPNs against adult of JPS, Heterorhabditis sp. Gyeongsan strain showed higher pathogenicity than S. carpocapsae GSN1 strain. EPN infested larva of JPS was detected on bark spray treatment with S. carpocapsae GSN1 strain in dead pine log that naturally infested larva of JPS however, no EPN infested JPS was detected on soaking of pine log with suspension of S. carpocapsae GSN1 strain. Though EPN had found with low efficacy against JPS but still possible to apply to control the boring insect pest as they can control log dwelling insect.

• The Korean Journal of Zoology
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• v.17 no.2
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• pp.81-92
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• 1974

The blood proteins of pine moth, Dendrolimus spectabilis Butler of different developmental stages were investigated by disc electrophoresis in acrylamide gels. Blood protein concentration was also determined during the metamorphosis. Protein concentration increased gradually with the growth of larva, reaching a maximum in themature larva, and the increase of protein bands also was accompanied. As the larva transforms into the prepupa the number of protein bands as well as the protein concentration dropped. A total of 22 bands were identified throughout the stages. Histochemical staining of the acrylamide gels by the PAS method, Toluidine blut O, and Sudan black demonstrated that the carbohydrate, mucopolysaccharide, and lipid were associated with certain blood proteins.