Al/expanded graphite was successfully synthesized through a facile method including ultrasonic and heat treatment. In the well-designed three dimensional structure, expanded graphite(EG) works as a conductive matrix to support coated Al particles. The effects of the fabrication parameters on the microstructures and thermal conductivities of these composites were investigated. As a result, it was found that composites with graphite volume fraction of 17.4-69.4% sintered at 600 oC/45 MPa exhibit in-plane thermal conductivities of 380-940 W/mK, over 90 % of the predictions by rule of mixture. According to the non-destructive analysis results, the synergistic enhancement was caused by the formation of efficient thermally conductive pathways due to the hybrid of the differently sized EG. The structure integrates the advantages of expanded graphite as a conductive support, preserving the electrode activity and integrity and improving the electrochemical performance.

The approach will be to study the fast evolving use of technology in fashion, especially related to creating innovative materials in the clothing business. From discussing nano technology as well as embedded sensors, we shall try to take a look at the evolution of technology in fashion garment construction. Special mention will be given to companies like Intel who are working with designers to create innovative fabrics and material prototypes. We shall also touch upon the use of technology to create unique and rare products that cannot be recreated and hence have a lot of value associated with them.

State of the Art: Sustainability Integration in the Luxury Fashion Industry Introduction to Luxury Fashion ‘Luxury’, which comes from the Latin word ‘luxus’, refers to exaggerated life, glamour, comfort and wealth (Dubois, Czellar & Laurent, 2005). In the ancient world, luxury was associated with wealth, exclusivity, and power. After the 17th century, European countries’ economic democratization contributed to the reduction of existing sumptuary laws. Trade increased and larger segments of the population began to afford luxury products. Consequently, luxury moved from being limited to serve the common good to being a satisfaction of private needs. At the end of the 19th century, following the second industrial revolution, luxury earned its modern meaning of being enjoyable beyond the necessities of life (Fionda and Moore, 2009). The democratization of luxury resulted in mass luxury in which luxury brands have extended themselves to affordable offerings (Cristini et al., 2017). Luxury was long associated with the premium quality (Brun and Castelli, 2013), whereas today the technical reproduction of luxury is indulged by mass-produced brands (Cristini et al, 2017). Thus, one could argue that commercial drivers have taken over the industry whereby executives are increasingly seeking ways to transform creativity into profitability. Accordingly, the luxury market has experienced noticeable growth. The global luxury goods market reached a value of € 1.081B, with a growth rate of 4%, in 2016 (Bain & Company, 2016). Nevertheless, despite growth and high profit margins, the global fashion market is affected by macroeconomic, socio-political and natural events. For example, the short-term doubling in cotton prices brought many problems in 2011. Furthermore, scarce natural resources and rising commodity prices greatly challenge the ability of luxury fashion companies to remain profitable. The new luxury paradigm of being more accessible challenges not only sustainability but also operational aspects. The reputation of the luxury industry suffers from consumer concerns over poor labour standards in production, blood diamonds, irresponsible gold-mining practices and animal cruelty in global production networks (Hennigs et al, 2013; Moore, 2011). We therefore question how and to what extent luxury could play a positive role in our mass-consuming generation to slow down the pace for materialism and to better implement sustainability in globally dispersed production networks. Whilst sociologists, marketing and branding experts, have shown interest in luxury management, researchers in the field of operations and supply chain management have paid little attention to the topic: the first paper in the field appeared less than a decade ago (Brun et al., 2008), and furthermore, as of January 2017, there appear to be only 87 papers published in Scopus-indexed journals with ‘‘supply chain OR oper*’’ AND ‘’luxury’’ in the keywords. Henceforth, the current financial, environmental, economic and cultural crises could be considered significant drivers for how luxury operations could be advanced in the move toward sustainability. The focus of this paper is luxury personal goods such as fashion and accessories. The Relevance of Sustainability for Luxury Fashion Following the supply chain revolution of the 1990’s (Mohanty and Prakash, 2013) and the removal of the Multi-Fibre Arrangement in 2005, the fashion industry has become a global force in production and distribution. Globalisation has led to increasing outsourcing of production by fashion companies to a network of suppliers and subcontractors. The industry is characterized by shorter product life cycles and highly volatile market demand (Choi, 2013) alongside downward price pressure, international sourcing, high product variety and low predictability (Perry and Towers, 2013). To this end, fashion companies rely on sophisticated information and logistics systems to remain competitive in the market. Nonetheless, the fashion industry is somewhat inflexible toward major external changes outside the organizations’ direct control (Kozlowski et al., 2015). There is also a potential conflict between corporate responsibility and overarching commercial pressures in the fashion industry (Perry et al., 2015). According to the definition of sustainable development by The United Nations World Commission on Environment and Development (WCED, 1987), current needs should be met without endangering future generations’ rights to satisfy theirs. Luxury fashion companies must therefore acknowledging resource scarcity and other sustainability issues, and take collective actions for an authentic shift to create unique and sustainable businesses. To be profitable and sustainable, “luxury companies must adjust their definition of excellence that is no longer associated with shallow glamour but with positive engagement and deeper values” (Hennigs et al, 2013, p.33). An Overview of Sustainable Supply Chain Management (SSCM) Sustainability in SCM has captured academics’ interest since the early 1990s. Despite the growing interest, some fundamental issues still need to be addressed to provide novel models. The majority of the practices that make up green supply chain management (GSCM) models are modifications of existing practices (Pagell and Wu, 2009). However, earlier studies also stress that these programs might not be sufficient to become sustainable. Hence, it would be insightful to examine which components and which practices are required to make ‘sustainable’ chains. Social sustainability also requires deeper consideration. Wu and Pagell (2011) investigated how organizations deal with short-term pressures to remain economically viable during sustainability implementation, but did not consider social aspects of sustainability. Lee and Klassen (2008) identified the important drivers and enablers which promote environmental management capabilities in SME suppliers, but did not address social sustainability or specific measures for suppliers’ environmental management capabilities. Zhu and Cote (2004) and Vachon and Klassen (2006) demonstrated how to extend green practices, but again social aspects were not encompassed. Similarly, Caniato et al (2012) identified drivers that push companies to adopt green practices, various practices that could be used to advance environmental sustainability and environmental performance indicators measured by fashion companies. However, the social component was excluded. The recognition of corporate social responsibility (CSR) as a business activity is highlighted by the launch of ISO 26000; nonetheless, as illustrated earlier, extant SCM literature has mostly neglected the social aspects of sustainability. Despite a number of studies on aspects including social responsibility and consumer trust (Castaldo et al., 2008), sustainability reporting (Lozano and Huisingh, 2011), sustainable supply management (Ageron, Gunasekaran, & Spalanzani, 2012), and supplier selection problems (Jia et al., 2015), social issues demand more investigation (Perry and Towers, 2013). Sustaining an efficient global supply chain without compromising social responsibility (Perry et al., 2015). Embedding social and environmental management into SCM is needed yet challenging. Significant progress has been made in studies of the buyer-supplier relationship over the past decades, however despite some notable exceptions on green SCM (Zhu and Cote 2004; Zhu et al. 2008; Yu et al. 2014), the development of SSCM literature appears to focus on a single entity rather than the entire chain or network. Social and environmental performance of suppliers is an area of mounting concern, and collectively, sufficient coordination between supply chain partners is greatly needed. Many small and medium-sized suppliers encounter challenges in responding to environmental pressures due to limited capabilities and available resources (Lee and Klassen, 2008), and the most critical environmental and social issues in supply chains are generated by suppliers located in the second tier or further upstream (Tachizawa and Wong, 2014). Therefore, a holistic examination of the entire chain is required. In this vein, Pagell and Wu (2009) examined the chain as an entirety by explicitly addressing both environmental and social outcomes and by asking what unique behavioural patterns are needed for SSCM. However, the adoption of some of the practices is quite limited, which suggests the existence of additional contingencies. Their study called for future studies to explore the role of specific industries e.g. textiles. To this end, Ho and Choi (2012) investigated why fashion companies go green and evaluated sustainable supply chains. Nevertheless, the study was a single case study and did not consider potential differences in terms of antecedents affecting small and large companies. Curwen et al. (2013), interestingly, sought to document current challenges the fashion and apparel industry faces while developing sustainable apparel. Yet again, an imperative need arises to further explore the connections among product design, production processes and supply chain stages through a multidisciplinary approach. On the whole, the phenomena of sustainability has been interpreted in a variety of ways, ranging from a philosophical perspective to business management approaches (Ahi and Searcy, 2013), but more research is needed to show more than how to be ‘less unsustainable’. Traditional business research must go beyond studies focusing on profit with a rather short-term orientation and instead embrace components of how to create truly sustainable businesses. Considering the aforementioned gaps observed in the extant literature, the following research questions were formulated to investigate the phenomena of social and environmental sustainability at supply chain level within the luxury context, where ethical aspects are becoming increasingly critical for success (Brun and Castelli, 2013). RQ1: How do luxury fashion companies integrate sustainability into their supply networks? RQ2: How do contingent factors impact sustainability integration in luxury fashion supply networks? RQ3: Which behavioural patterns could be used to develop a sustainable supply chain configuration for the luxury fashion industry? Research Methodology Data was drawn from case studies of two Italian supply chains producing luxury silk and leather goods, encompassing 10 companies, with a focus on the individual supply chain as the level of analysis. These two supply chain were theoretically sampled to provide diversity in organizational characteristics and supply network relationships that could explain different approaches to the integration of sustainability into the entire chain. The research design followed Yin (1994) and previous studies in operations and SCM. Face to face interviews were conducted with senior managers of different functions in each supply chain during 2015-16. In most of the companies, responsibility for sustainability was divided and integrated into the jobs of multiple managers, meaning that there was no single individual assigned to sustainability. Additionally, the managers interviewed were often in charge of one or more functions, which helped reduce the number of interviews but increased interview content. The interview topic guide was developed from the literature review, and the theoretical constructs underpinning the interview protocol were then used to create an initial coding scheme for data. Data analysis was done inductively, by developing a framework from the cases while exploiting the theoretical concepts in the categorization of codes. The coding process was followed for all cases as an iterative process to assure consistency. Coding was not considered complete until a consensus was reached on each construct. Data analysis involved within and cross-case analysis. Results: Toward a Framework for Sustainable Luxury Supply Chains This study explored the luxury fashion industry from supply chain and operations management standpoint. Findings revealed seven key categories by which luxury fashion companies integrated environmental and social sustainability into their operations: Category 1: Sustainable product design, Category 2: Operations management, Category 3: Performance measurement, Category 4: Sourcing management, Category 5: Decent work and labour management, Category 6: Commitment to sustainability and organisational perceptions and Category 7: Longevity of suppliers. Firstly, natural resource scarcity was acknowledged by all 10 companies. To this end, some practices, including use of eco-friendly materials, hazardous chemical elimination, textile waste reuse, were applied to the fashion design stage with an attempt to mitigate the environmental impact of subsequent operations. Life cycle assessment (LCA was observed to be a significant tool among sample companies. Nonetheless, higher investment costs to employ more innovative solutions and to advance laboratory tests, higher prices for more ecological materials, and lack of knowledge in terms of fibre and textile components due to supply chain complexity prevented companies from advancing product stewardship. Regarding operations management, water emerged as a significant area where sample companies implemented incremental techniques, including natural tanning, on-site wastewater treatment, water purification and water reuse. Nevertheless, vertical integration, which was getting weaker in the luxury fashion industry, resulted in fashion companies having difficulties in the execution of their suppliers’ environmental performance. Practices implemented in this category were individual company attempts rather than collective action plans. It was not quite feasible to mitigate the environmental impact of independent networks where the buying firm outsourced its business functions to third party suppliers. In order to deal with lack of control and monitoring, sustainability must be understood as a concept to be integrated into the core business strategy with measurable indicators. Furthermore, traceability emerged as a pivotal topic. However, the complexity of global luxury fashion supply chains brought complications. Both supply chains showed that there was lack of knowledge about products’ production history. Due to globalization, countries with low operational costs appeared to leverage their competitive advantage. Changing market conditions resulted in the loss of, for example, silk production in Italy. Silkworm cultivation did not take place in Italy any longer, resulting in confusion regarding outsourced materials’ environmental and social records. High product variety and fragmentation of the production network made it difficult for companies to ensure full traceability. To this end, trust and knowledge transfer were weak, which could be improved to link non-economic goals with financial objectives. Another interesting result was that supplier audits were mostly made within first tier direct suppliers’ facilities. In some cases suppliers were provided with online self-assessment tools that were monitored by buying firms. Yet, buying firms and manufacturers required more efficient inspection methods and more realistic mitigation strategies. Ensuring social sustainability is hindered by complications such as lack of visibility and financial burdens. Consequently, technical and motivational dynamic capability development needed to be proactively initiated by focal companies. As stressed by earlier studies, sustainability must be a shared effort within all functions of a company and across its supply network. Sustainability could be disseminated across the chain only when all supply chain actors, including retailers, suppliers and sub-contractors, connect, understand and collaborate with each other. Correspondingly, it became clear that sustainability management required strong organizational commitment for which an alignment between financial and non-financial goals was greatly required. Hence, education and training activities received growing attention. In conclusion, the sample companies asked their supply chain partners to become sustainable for two main reasons, (i) to make the chain stronger, and (ii) to jointly learn and improve performance. Long-term relationships and supplier stability, as evidenced in the leather supply chains, could cultivate trust, which would result in advanced organizational and operational performance improvements. Supplier engagement and collaboration associated with knowledge dissemination could further enable companies to improve sustainability, and lastly innovation capabilities were imperative.

Bovine somatic cell nuclear transfer (bSCNT) embryos can develop to the blastocyst stage at a rate similar to that of embryos produced by in vitro fertilization (IVF). However, the efficiency of somatic cell cloning has remained low, and applications have been limited, irrespective of the nuclear donor species or cell types. One possible explanation is that the reprogramming factors of each oocyte is insufficient or not properly adapted for the receipt of a somatic cell nucleus, because it is naturally prepared only for the receipt of a gamete. Here, we would like to introduce the aggregation method (agSCNT), a new experimental system that enables and increase oocyte volume and examined its subsequent development. Judgement by the blastocyst formation rate or total cell number was significantly higher in the agSCNT group than that in the SCNT group, and was very similar to that in the control IVF group. Moreover, the cleavage formation rate in the agSCNT group (61.5 ± 1.3) was higher than that in the SCNT group (39.7 ± 2.1), while still less than that in the IVF group (75.4 ± 1.3). We also analyzed the epigenetic modifications in bovine IVF, agSCNT, and untreated SCNT embryos. In conclusion, the present study demonstrated that agSCNT improves the in vitro developmental competence and quality of cloned embryos, as evidenced by increased total cell numbers (TC).

The purpose of this monitoring is to survey the geographical distribution of tick species using dry ice bait traps and flagging methods at each ten provinces (GangwonⅠ,GangwonⅡ, Gyeonggi, Chungbuk, Chungnam, Gyeongbuk, Gyeongnam, Jeonbuk, Jeonnam and Jeju area) and one Metropolitan area in the Republic of Korea for eight months from April through November, 2016. A total of 65,339 ixodid ticks (8,200 females, 1,988 males, 31,453 nymphs and 23,698 larvae) was collected, belonging to three genera (Haemaphysalis, Ixodes and Amblyomma). Haemaphysalis longicornis was the most commonly collected species, which is represented for 96.88% of all the collected ticks and followed by H. flava (2.69%), I. nipponensis (0.35%), A. testudinarium (0.05%) and H. japonica (0.03%) in the Republic of Korea for the study period. Haemaphysalis longicornis was a dominant species observed in these eleven areas.

We performed a survey for flavivirus infection and distribution of Aedes albopictus that known as Zika and Dengue virus vector using black–light trap and BG-sentinel trap around urban area in Korea. Mosquitoes were collected in 27 cities during March to November (twice a month) year 2016. Total numbers of mosquitoes collected 102,102 including 19 species 8 genera during collecting period. Total 21,467 Ae. albopictus was collected that 20,961(24.3%) by BG-sentinel trap and 506 (3.2%) by Black-light trap in urban area. Trap index(trap/night) of Ae. albopictus was showed highest in Hamyang (TI:992.3) and lowest in Taebaek (TI:0.3) there was only collected by Black-light trap. A total of 894 pools from all collecting Ae. albopictus were performed a Flavivirus detection. Flavivirus was not detected during study period. This study may provide basic information for surveillance of imported diseases (include Zika virus) and vectors in Korea.

The effects of seasonal and shore height on the growth and reproduction of Chondrus ocellatus were examined in the low intertidal zone of Hakampo, Korea from July 2014 to April 2015. Seasonal biomass, density, frond weight and G:T ratio of C. ocellatus was examined at upper and lower shore height of Chondrus zone. We hypothesized that, (1) growth and reproductive fronds of C. ocellatus are increased at the lower shore, having less environmental stress over the study period, (2) carposporophytes and gametophytes are dominant at upper shore as do many Gigartinaceae species, and (3) the G:T ratio of C. ocellatus are changeable in season and shore height. Biomass and frond weight were significantly greater in lower shore than upper shore and differences were also found between the seasons with the highest biomass (1695.82 g wet wt./m2)in July and frond weight (797.27mg)October. However, frond densities were not significantly different between seasons and shore heights. Carposporophytes including gametophytes were dominant at up pershore, whereas tetrasporophytes were abundant at the lower shore, even in the C. ocellatus zone. Seasonal reproductive patterns in the percentage of tetrasporophytes and carposporophytes were very similar with maximal in October and minimal in April. However, tetrasporophytes were more abundant than carposporophytes during the study period. The G:T ratio in C. ocellatus was ranged from 0.05 to 2.45 and it was significantly different between the seasons and shore heights. We conclude that environmental stresses induced by tidal cycle in the intertidal area are determinant in the abundance and reproduction status of C. ocellatus. At Hakampo shore, C. ocellatus has growth period between July-October and reproduction period in October and January.

We propose a cosmological survey to probe star formation and nuclear activity in galaxies at redshifts of z=2-4 by polycyclic aromatic hydrocarbon (PAH) features using the SPICA mid-infrared instrument (SMI) with a spectral resolution of R=20. We will cover a wavelength range of 20-36 μm that corresponds to z=2-4 for the PAH features (11.3, 7.7, and 6.2 μm). The sensitivity will be 1 X 10-19 W/m2 (5 σ) in case of a reference survey that covers 4 arcmin2 field in a one-hour observation. It corresponds to LIR=2 X 1011 L⊙ at z=3 and will give us more than 10000 galaxies in a 450 hour survey.

The extragalactic background suggests half the energy generated by stars was reprocessed into the infrared (IR) by dust. At z1.3, 90% of star formation is obscured by dust. To fully understand the cosmic star formation history, it is critical to investigate infrared emission. AKARI has made deep mid-IR observation using its continuous 9-band filters in the NEP field (5.4 deg2), using 10% of the entire pointed observations available throughout its lifetime. However, there remain 11,000 AKARI infrared sources undetected with the previous CFHT/Megacam imaging (r ~25.9ABmag). Redshift and IR luminosity of these sources are unknown. These sources may contribute signicantly to the cosmic star-formation rate density (CSFRD). For example, if they all lie at 1< z <2, the CSFRD will be twice as high at the epoch. We are carrying out deep imaging of the NEP eld in 5 broad bands (g; r; i; z; and y) using Hyper Suprime-Camera (HSC), which has 1.5 deg field of view in diameter on Subaru 8m telescope. This will provide photometric redshift information, and thereby IR luminosity for the previously-undetected 11,000 faint AKARI IR sources. Combined with AKARI's mid-IR AGN/SF diagnosis, and accurate mid- IR luminosity measurement, this will allow a complete census of cosmic star-formation/AGN accretion history obscured by dust.

The unique characteristics of graphene make it an optimal material for crucial studies; likewise, its potential applications are numerous. Graphene’s characteristics change with the number of total layers, and thus the rapid and accurate estimation of the number of graphene layers is essential. In this work, we review the methods till date used to identify the number of layers but they incorporate certain drawbacks and limitations. To overcome the limitations, a combination of these methods will provide a direct approach to identify the number of layers. Here we correlate the data obtained from Raman spectroscopy, optical microscopy images, and atomic force microscopy to identify the number of graphene layers. Among these methods, correlation of optical microscopy images with Raman spectroscopy data is proposed as a more direct approach to reliably determine the number of graphene layers.

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne zoonosis and SFTS virus is transmitted to humans by tick bites. The aim of this study was to monitor tick population and its SFTS virus infection. During March 2014 to October 2015, ticks were monthly sampled using dry-ice bait trap and flag method from 4 collecting points in Boeun-gun. A total of 16,500 ticks, including 14,646 Haemaphysalis longicornis (88.7%), 1,825 H. flava (11.1%), and 29 Ixodes nipponensis (0.2%), were collected. Ticks were pooled (5,156 ticks in 456 pools) and tested by RT-PCR and nested PCR and the minimum infection rate of ticks was 0.27% (14 pools) consisting of 0.13% H. longicornis (6 pools), 1.19% H. flava (8 pools). This annual surveillance study will be needed for long-term monitoring of ixodid ticks in Korea.

The geographical distribution of ixodid ticks in were surveyed at 10 areas from April to November 2015. We investigated tick distribution using dry ice bait trap and flagging method as a part of disease vector monitoring in Korea. As a result, ticks collected 29,992 ixodid ticks with 3 genera, 7 species. Among them, Genus Haemaphysalis, Ixodes and Amblyomma accounted for 29,751 (99.2%), 223 (0.7%) and 18 (0.1%). Haemaphysalis longicornis was accounted for 88.9%, which has become the dominant species. Some species, such as H. japonica and Ixodes persulcatus were only collected Gangwon area. Metropolitan area had the highest population of ticks 6,540 (21.8%), Chungbuk area was next 5,049 (16.8%). In environmental distribution, Genus Haemaphysalis was highly collected in grassland site (32.1%) and Genus Ixodes was highly collected in coniferous forest site (43.5%). Upon analysis of the monthly distribution, H. longicornis, the dominant species, was highly collected at nymph stage in May, and its larva was highly collected in September. These studies may provide important information for control and management of tick in Korea.

We conducted a investigation for distribution and flavivirus infection of mosquitoes using black –light trap around Incheon international airport there was possible overseas inflow caused by global warming in Korea. Mosquitoes were collected once a week April to October during 6 years (2009~2015). The numbers of mosquitoes collected in Oseong and Eurwang mountain were 8,969 and 7,978 including 12 species 7 genera respectively during collecting period. Culex pipiens complex was dominant species in two collecting area as 4,621(51.5%) in Oseong and 3,761(47.1%) in Eurwang mountain. A total of 16 pools from 88 Aedes albopictus were performed a Dengue virus (DENV) detection and total 628 pools from 11,146 other mosquitoes performed a West nile virus (WNV) detection. Flavivirus was not detected during study period. This study may provide basic information for surveillance of imported diseases and vectors in Korea.

Bacillus thuringiensis (Bt) produces a variety of insecticidal crystal proteins and widely used as one of the most successful biological control agents. Recently, studies that introduce cry genes into crops to create pest resistance have made much progress, and the total area of land planted with Bt crops has increased substantially. In this study, pest resistance of 8 transgenic Bt rice events with a synthetic cry1Ac gene linked to rice rbcS-tp sequence were assessed under laboratory conditions. Bioassays were performed against Cnaphalocrocis medinalis, which is a significant pest of rice in Asia. C. medinalis larvae were shown to be susceptible to all eight events, even though there were differences between the causes of death. The results differed between developmental stages of the larvae, despite the fact that all 8 events led to high mortalities. These results may be a significant foundation for the evaluation of improved transgenic Bt rice.

Insect growth regulators (IGRs) are attractive pest control agents due to their high target specificity and relative safety to the environment. Recently, plants have been shown to synthesize IGRs that affect the insect juvenile hormone (JH) as a part of their defense mechanisms. We identified several JH agonists (JHAs) and antagonists (JHANs) from plant essential oil compounds using a yeast two-hybrid system transformed with the Aedes aegypti JH receptor as a reporter system. They showed high mosquitocidal activities with relatively low LC50 values and caused retardation of ovarian development in female mosquitoes. While the JHAs increased the expression of JH-induced gene, the JHANs caused reduction in the expression of the same gene. The compounds identified in this study could provide insights on the plant-insect interactions and may be useful for the development of novel IGR insecticides.

Streptomyces is the largest genus of Actinobacteria that forms fungus-like branched networks of hyphae. Streptomyces has been clinically important because they produce various secondary metabolites with antibacterial, antifungal, and nematocidal activities. In order to explore novel insecticidal compounds, extracts from 363 strains of Actinobacteria were screened for their juvenoid and anti-juvenoid activities using yeast-two hybrid system. Among them, extract of Streptomyces spp. showed high anti-juvenoid activity. This extract also showed high level of insecticidal activities against larvae of Aedes albopictus, Laodelphax striatellus, and Ostrinia furnacalis. These results suggested that the secondary metabolites of Streptomyces could be natural sources of novel insecticidal compounds.

A surveillance of chigger mites was performed to monitor the incidence of scrub typhus vectors at 5 environmental collection points of 3 locations (Muju, Namwon and Gimge) from April 2016 in Jeollabuk-Do, Korea. During the surveillance period, 3,292 chigger mites were collected and the predominant species were Leptotrombidium pallidum (42.9%). The high environmental collecting rates were recorded at reservoir bank (31.6%) and grassfield (29.7%). We detected Orientia tsutsugamushi from the samples collected in Jeollabuk-Do using nested polymerase chain reaction. The specific DNA of O. tsutsugamushi were detected in 11 pools among total 119 pools and its minimum positive rate was 0.35%. In order to clarify the relationship between chigger mites and scrub typhus cases, further survey will be needed.