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New Records and synonymy of Bostrichid beetles (Coleoptera: Bostrichidae) from Korea
Sangwook Park,Ki-jeong Hong,Seunghwan Lee 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.10
The family Bostrichidae contains 9 subfamily and about 580 species. Almost all have adapted to xylophagy, living mainly in sapwood rich in cellulose and many species are considered as serious and onerous technical pests - with increasing export of wooden articles and containers increases also the frequency of introduction of these beetles to various parts of the world, including those of temperate or cold climate (Borowski and Wegrzynowicz, 2007). In Korea, Up to days, 7 species of 5 genera of the family Bostrichidae have been recorded. We added two species, Dinoderus speculifer Lesne, 1895 and Xylothrips pekinensis (Lesne, 1902 - Comb. nov.). And Xylothrips cathaicus Reichardt, 1966 is synonymized with Xylothrips pekineisns (Lesne, 1902 - Syn. nov.). Borowski and Wegrzynowicz (2008) added Xylothrips pekinensis to the Japanese fauna with a photo and mentioned on the possibility of the distribution in the Korean peninsula, but this species had been already recorded to the Japanese fauna by Iwata and Kusakabe (2002).
Sangwook Park,Seunghwan Lee,Ki-Jeong Hong 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05
Up to now, 39 species of the family Anthribidae have been recorded from Korea. As a result of this study, we add two genus and four species of the family Anthribidae to the Korean fauna with brief descriptions and illustrations of diagnostic characters. The newly recorded genus Citacalus in the subfamily Choraginae, is very similar to the genus Choragus. Citacalus pygidialis Johraku has an unique character, pygidium strongly convex longitudinally sharply carinate on the apical half in male; in female, pygidium triangularly projecting laterally near the apex. The newly recorded species Euparius modicus yaeyamanus Morimoto in the genus Euparius of the subfamily Anthribinae, can be distinguished from the other two recorded species by the elytra with almost unicolor pubescence color except a pair of black spots behind middle. The newly recorded genus Unciferina is close to Uncifer Jordan, but easily distinguished from the latter by sharply angulate rostrum to head, transversely carinate base of rostrum on the underside, and the acute hind angles of pronotum. The two new species in the genus Unciferina are easily distinguished from the congeneric species with pubescence patches on pronotum and elytra, shape of eye, the ratio of the antennal segments and the shape of the hind angles of pronotum.
The Content of β-glucan, Amino Acid of Fermented Herb Remnants by Lentinula edodes Mycelials
Sangwook Jeong,Hae-Shin Je,Seong-Woo Jin,Kyung-Je Kim,Young-Woo Koh,Seung-Bin Im,Yu-Seon Kim,Kyoungsun Seo 한국버섯학회 2017 버섯 Vol.21 No.2
Lentinula edodes, a member of the Pleurotaceae, is a blood pressure and cholesterol lowering effect. Recently, research the reduction of irritation and the enhancement of function have been cultivation of natural resources using mushroom mycelium. For the development of food fermented with L. edodes mycelium of natural medicinal herb remnants, determined to be 20%, and the product were used after lyophilization. In this study, we were analyzed the contents of β-glucan and amino acids of fermented herb remnants by L. edoeds mycelials. β -Glucan is a type of polysaccharide that has immune-enhancing and is known to inhibit cancer cells. The content of β-glucan and total amino acids of fermented herb remnants by L. edoeds mycelials were 35.13% and 8,697.36 mg%, respectively. The content of essential amino acid from fermented herb remnants by L. edoeds mycelials was 3,226.85 mg%. Collectively, our findings suggest that fermented herb remnants by L. edoeds mycelials extract could be used as an chemo-preventive material for consumers.
Sangwook Park,Seunghwan LEE,Ki-Jeong Hong 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
The Korean record of Scolytoplatypus mikado Blandford 1893 is originated from Murayama (1929) whereas Wood(1989) synonimyzed S. sinensis Tsai & Huang 1965 as a junior synonym of S. mikado Blandford 1893. In 2010, the authors collected several specimens from Korea and Japan and found considerable morphological differences between S. sinensis and S. mikad the process on the prosternum, the pubescences on the procoxae, and the shape of the male elytral declivity. Comparing the Cytochrome Oxidase I and 16S rRNA gene, we also found the genetical gap between the South Korean specimens (= S. sinensis, with the Japanese sample from Mt. Tsukubasan) and the sample from Mt. Yamizosan, Japan (= S. mikado). Accordingly, S. sinensis Tsai & Huang 1965 is here reinstated.
Jeong Joon Ahn,Kyoung San Choi,Sangwook Koh 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
The study conducted to understand the annual phenology of hemipteran insect pests including Halyomorpha halys, Nezara antennata, Plautia stali, and Riptortus pedestris in Jeju, Korea, 2017 and 2018. We investigated the population density of them at three locations for two years. The commercial and fish trap were used for monitoring. We compare the seasonal occurrence among species and sampling locations. The repeated measured ANOVA was used to explain the difference of seasonal occurrence among locations and sampling time. There was difference the first adult catch and the peak occurrence of species among sampling sites.
Jeong Joon Ahn,Kyoung San Choi,Sangwook Koh 한국응용곤충학회 2019 한국응용곤충학회 학술대회논문집 Vol.2019 No.04
Riptortus pedestris is a polyphagous species and an economically important insect pest of soybean. We investigated the development time, survivorship, longevity and fecundity of R. pedestris at five different temperatures. Life table analysis is the prime tool in population dynamics and pest management. We applied the computer programs – TWOSEX-MSChart and TIMING-MSChart - to analyze our data. We obtained the population parameters – adult preoviposition period (APOP), total preoviposition period (TPOP), oviposition days, eggs per reproductive female, first age of survival rate <50%, proportion of male and female individuals and life table parameters (net reproductive rate, intrinsic rate of increase, finite rate of increase, and mean generation time) - and population projection using two computer programs.
Jeong Joon Ahn,Kyoung San Choi,Sangwook Koh 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.10
Riptortus pedestris is one of economically important insect pests in soybean fields. The study was conducted at seven constant temperatures of 15.8, 19.7, 24.0, 27.8, 32.6, 34.0 and 35.5℃. We compared the results from life table parameters and oviposition models of R. pedestris between two data sets. One included the total number of eggs and the other used only hatched eggs. When the total number of eggs were included to calculate the parameters the intrinsic rate of increase, net reproductive rate and mean generation time were 0.066, 58.13 and 61.45 at 24℃, respectively. These values were different only when hatched eggs were applied (0.064, 45.46 and 59.41, respectively). The parameters of temperature-dependent total fecundity and age-specific cumulative oviposition rate from each data set were different.
Jeong Joon Ahn,Ana Claiza Samayoa,Kyoung San Choi,Yun-Shiuan Wang,Sangwook Koh,Yu-Bing Haung,Shaw-Yhi Hwang 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.04
The oriental fruit fly is a major polyphagous insect pest with a worldwide distribution. The effects of temperature on stage-specific development were investigated at eight constant temperatures (13.0, 14.4, 16.2, 19.5, 23.8, 27.7, 31.8 and 34.8℃). Stage-specific lower developmental thresholds and thermal constants were determined using linear regression. The lower and higher temperature threshold (TL and TH) were estimated using the Sharpe-Schoolfield-Ikemoto (SSI) model. The daily adult emergence frequency of B. dorsalis was estimated in relation to adult age and temperature. Thermal performance was compared among B. dorsalis populations from different locations in Taiwan.