Mobile shopping motivations affects the interaction between mobile shoppers and mobile retailers. This study examines how mobile shopping motivations affect value co-creation, customer equity drivers, and customer lifetime value through a structural equation model. Mobile shopping motivations as mobile shoppers’ needs are time saving, right purchase and money saving. To meet mobile shoppers’ needs, mobile shoppers, mobile retailers, and other customers are willing to collaborate. Value co-creation that Yi and Gong (2013) scaled includes customer participation behaviour such as information seeking, information sharing, responsible behaviour, and personal interaction, and customer citizenship behaviour such as feedback, helping, advocacy, and tolerance. The results indicate that mobile shopping motivations are significant determinants of value co-creation behaviours, implying that mobile shopping motivations are driving factors of value co-creation. Customer participation behaviour has significant effects on value equity and brand equity while customer citizenship behaviour shows positive effects on brand equity and relationship. As for customer lifetime value, relationship equity has significant positive effect, while value and brand equity had no significant influence. This study also shows that mobile shopping motivations affect both value equity and relationship equity of mobile shopping apps by improving information sharing, responsible behaviour, and personal interaction, feedback, helping, and advocacy. Value equity and relationship equity also have significant effects on customer lifetime value. The authors discuss the theoretical and managerial implications for their findings.

This study aims to examine how the mobile social network service experience affects value co-creation and customer lifetime value. The mobile social network service experience includes mobile convenience, social compatibility, social risk, and cognitive effort. The research hypotheses with structural equation modeling are tested. In mobile SNS context, value co-creation behaviors essentially determine customer lifetime value of mobile shopping apps. Value co-creation behaviors have received little attention in mobile shopping. The mobile SNS experience strongly influences value co-creation behaviors. This study is based on a sample of mobile SNS users nationwide in Korea. Therefore, the generalizability of the findings has to be tested. Furthermore, the study examines customer lifetime value, which is good sales predictor of mobile shopping apps. Moreover, the research model included the positive and negative determinants on mobile SNS experience. Future researches examine other use intentions of mobile SNS. Value co-creation behaviors substantially affect customer lifetime value. Mobile shopping apps should increase customer lifetime value from mobile SNS experience and value co-creation. This study shows how individual mobile SNS user provides mobile shopping apps with profit through value co-creation. This study is the first to examine how mobile SNS users enhance value co-creation and how value cocreation behaviors affect customer lifetime value of mobile SNS users.

The advanced information technology leads to network age, making existing competitive advantages such as differentiation and cost leadership powerless in B2B context. The competitiveness of individual firm plays a significant role in enhancing the competitive advantage of a business network that a firm belongs to. The competitiveness of a business network depends on value co-creation, the interaction among firms in a network. Value co-creation has desirable and risky aspects. The increases in profits, brand reputation, and time and cost efficiency, client and supplier learning, etc. are positive aspects. But role conflicts, role ambiguity, and tension, etc. are negative outcomes. How can the industrial firm succeed in value co-creation with its partners in B2B context? The study focuses on the firm’s strategic marketing orientations as an antecedent of value co-creation. Strategic marketing orientations as the values and beliefs of the firm affect the collaboration with other firms during value co-creation. Previous literature assumes that a firm pursues one single strategic orientation. However, the study assumes that an industrial firm has entrepreneurial orientation, market orientation, long-term orientation, and relationship orientation. The study mostly focused on the relationships among those strategic marketing orientations. Based on these inter-relationships, the study proposed a set of value co-creation activity criteria such as information seeking, information sharing, personal interaction, responsible behavior, feedback, helping, advocacy, tolerance. Value co-creation has been evaluated by relationship performance such as trust and commitment. The study examined the relationships between strategic marketing orientations and value co-creation. Data was collected from 159 Korean manufacturers in B2B context and analyzed through structural equation modeling. The study provides evidence that entrepreneurial orientation affects market orientation positively and market orientation has positive effects on long-term orientation and relationship orientation, and long-term orientation and relationship orientation influence value co-creation directly. Value co-creation has a positive effect on relationship performance. The results of the study provide valuable implications to the mangers of industrial firms in B2B context. To succeed the value co-creation, the firm first has to look at the difference between strategic marketing orientations that the value co-creation partners pursue. In terms of selecting value co-creation partner, industrial firm with long-term orientation and relationship orientation will be more effective. Six activities of interactions during value co-creation play an important role in enhancing trust and commitment. The study contributes to the value co-creation literature by identifying strategic marketing orientations as independent variable influencing the value co-creation in B2B context. The study has several limitations that call for future research.

The advent of smart shopping environments including innovative information technology, advanced delivery systems, and extended smart phone use has rapidly changed the shopping methods and activities of the consumers. They have chosen smart shopping with greater frequency, which minimizes the use of time, money, effort and energy to buy the right products and to gain shopping experiences such as hedonic and utilitarian feelings (Atkins and Kim, 2012). The concept of smart shopping is based on value co-creation which can be explained as the value from the outcome of interaction between firms and consumers (Grönroos, 2011, Vargo and Lusch, 2004). In the value co-creation process, smart shoppers are willing to perform customer participation behaviors such as information seeking, information sharing, responsible behavior, and personal interaction, and to show customer citizenship behaviors such as feedback, advocacy, helping, and tolerance (Yi and Gong 2013). In smart shopping, a consumer involves in shopping experiences through product purchases and while engaged via the shopping environments such as an elaborate store design, educational events, recreation, and entertainment (Fiore and Kim, 2007). These shopping experiences, which contain both hedonic and utilitarian value (Holbrook and Hirschman, 1982), are better explained by consumer processes, responses on the shopping environment, situation, and consumer characteristics (Fiore and Kim, 2007). The attributes of shopping experience are symbolic, hedonic, and aesthetic (Holbrook and Hirschman, 1982) and utilitarian and hedonic (Kim, Lee and Park, 2014). Smart shoppers who are involved with value co-creation obtain hedonic benefits with emotional, funny, and enjoyable feelings and along with utilitarian benefits such as rational, functional, task-related experiences (Holbrook and Hirschman, 1982). The value co-creation and the shopping experience lead to greater customer equity such as value equity, brand equity, and relationship equity (Lemon, Rust, and Zeithamal 2001). Based on previous literature review, the authors constructed the following hypotheses. First, smart shopping will have positive effects on value co-creation, the shopping experience, and customer equity. Second, the smart shopping will have positive effects on both value co-creation and the shopping experience. Third, value cocreation will have positive effects on the shopping experience. Fourth, value cocreation and the shopping experience will have positive effects on customer equity. The authors collected the data based on questionnaires from mobile smart shoppers. The SPSS 20 and AMOS 20 statistical programs will be used for the data analysis. The analysis found the positive influence that smart shopping has on value co-creation and the shopping experience, and customer equity. This is the first study that shows these relationships from an empirical point-of-view. The findings of the study have useful managerial implications on the effects of value co-creation on both smart shoppers and firms. Value co-creation will provide smart shoppers with better product or service quality and enhance firms with more valuable customer equity. The greater shopping experience is the greater customer equity that will be developed. Value co-creation also will give firms a strong competitive advantage in terms of an organization’s learning, brand perception, reduced risk, improvement of customer relationships, and lowering cost for marketing, and research and development. The study has limitations. First, other potential variables of the value co-creation influencing new service development, customer loyalty, and customer satisfaction etc, could be considered. Second, the length of the relationship between smart shoppers and the service provider in value co-creation process should be considered. Third, the study needs to be generalized to cross sectional research beyond smart shopping area. Finally, to examine the effects of value co-creation and the shopping experience on customer equity, future research could investigate how value co-creation and the shopping experience affect the objective financial performance of a firm.

43 5. Research Model Value Co-Creation Customer ParticipationㆍInformation seeking ㆍInformation sharing ㆍResponsible behavior ㆍPersonal interactionCustomer Citizenship ㆍFeedbackㆍAdvocacyㆍHelpingㆍToleranceRelationship PerformanceㆍTrust ㆍCommitment ㆍLoyaltyEntrepreneurial Value OrientationEntrepreneurial Orientation(EO)Relationship Orientation(RO)MarketOrientation(MO)H1H2H3H4H5H6H7H8 Hypotheses H1: Entrepreneurial Orientation will have a positive influence on customer participation behavior in value co-creation process H2: Market Orientation will have a positive influence on customer participation behavior in value co-creation process H3: Relationship Orientation will have a positive influence on customer participation behavior in value co-creation process H4: Entrepreneurial Orientation will have a positive influence on customer citizenship behavior in value co-creation process H5: Market Orientation will have a positive influence on customer citizenship behavior in value co-creation process H6: Relationship Orientation will have a positive influence on customer citizenship behavior in value co-creation process H7: Customer participation behavior in value co-creation process will have a positive influence on relationship performance H8: Customer citizenship behavior in value co-creation process will have a positive influence on relationship performance43 5. Research Model Value Co-Creation Customer ParticipationㆍInformation seeking ㆍInformation sharing ㆍResponsible behavior ㆍPersonal interactionCustomer Citizenship ㆍFeedbackㆍAdvocacyㆍHelpingㆍToleranceRelationship PerformanceㆍTrust ㆍCommitment ㆍLoyaltyEntrepreneurial Value OrientationEntrepreneurial Orientation(EO)Relationship Orientation(RO)MarketOrientation(MO)H1H2H3H4H5H6H7H8 Hypotheses H1: Entrepreneurial Orientation will have a positive influence on customer participation behavior in value co-creation process H2: Market Orientation will have a positive influence on customer participation behavior in value co-creation process H3: Relationship Orientation will have a positive influence on customer participation behavior in value co-creation process H4: Entrepreneurial Orientation will have a positive influence on customer citizenship behavior in value co-creation process H5: Market Orientation will have a positive influence on customer citizenship behavior in value co-creation process H6: Relationship Orientation will have a positive influence on customer citizenship behavior in value co-creation process H7: Customer participation behavior in value co-creation process will have a positive influence on relationship performance H8: Customer citizenship behavior in value co-creation process will have a positive influence on relationship performance43 5. Research Model Value Co-Creation Customer ParticipationㆍInformation seeking ㆍInformation sharing ㆍResponsible behavior ㆍPersonal interactionCustomer Citizenship ㆍFeedbackㆍAdvocacyㆍHelpingㆍToleranceRelationship PerformanceㆍTrust ㆍCommitment ㆍLoyaltyEntrepreneurial Value OrientationEntrepreneurial Orientation(EO)Relationship Orientation(RO)MarketOrientation(MO)H1H2H3H4H5H6H7H8 Hypotheses H1: Entrepreneurial Orientation will have a positive influence on customer participation behavior in value co-creation process H2: Market Orientation will have a positive influence on customer participation behavior in value co-creation process H3: Relationship Orientation will have a positive influence on customer participation behavior in value co-creation process H4: Entrepreneurial Orientation will have a positive influence on customer citizenship behavior in value co-creation process H5: Market Orientation will have a positive influence on customer citizenship behavior in value co-creation process H6: Relationship Orientation will have a positive influence on customer citizenship behavior in value co-creation process H7: Customer participation behavior in value co-creation process will have a positive influence on relationship performance H8: Customer citizenship behavior in value co-creation process will have a positive influence on relationship performance43 5. Research Model Value Co-Creation Customer ParticipationㆍInformation seeking ㆍInformation sharing ㆍResponsible behavior ㆍPersonal interactionCustomer Citizenship ㆍFeedbackㆍAdvocacyㆍHelpingㆍToleranceRelationship PerformanceㆍTrust ㆍCommitment ㆍLoyaltyEntrepreneurial Value OrientationEntrepreneurial Orientation(EO)Relationship Orientation(RO)MarketOrientation(MO)H1H2H3H4H5H6H7H8 Hypotheses H1: Entrepreneurial Orientation will have a positive influence on customer participation behavior in value co-creation process H2: Market Orientation will have a positive influence on customer participation behavior in value co-creation process H3: Relationship Orientation will have a positive influence on customer participation behavior in value co-creation process H4: Entrepreneurial Orientation will have a positive influence on customer citizenship behavior in value co-creation process H5: Market Orientation will have a positive influence on customer citizenship behavior in value co-creation process H6: Relationship Orientation will have a positive influence on customer citizenship behavior in value co-creation process H7: Customer participation behavior in value co-creation process will have a positive influence on relationship performance H8: Customer citizenship behavior in value co-creation process will have a positive influence on relationship performanceand relationship performance. 2. Conceptual framework 2.1 Entrepreneurial Value Orientation Entrepreneurial Orientation Entrepreneurial-oriented firms with risk-taking, proactivness, and innovativeness focus on finding new market opportunities and reshaping current operating areas (Hult and Ketchen 2001). Entrepreneurial orientation provides firms with first-mover advantages and has a positive effect on performance. Entrepreneurs create value through innovation with exploiting new opportunity and creating new product-market areas. Market Orientation Market-oriented firms create superior value through the understanding of customers’ needs and the capabilities to fulfill those identified needs (Jaworski & Kohli, 1993). The value creation of market-oriented firms is based on strong commitment to developing product innovation capabilities (Atuahen-Gima, 1996). Market orientation provides firms with market-linking capabilities that help create and deliver value to customers (O’Cass and Ngo, 2012). Relationship Orientation Interaction orientation An interaction orientation is regarded as a sustainable competitive advantage and a value rare and as a value creation driver. Interaction oriented firms with specific and actionable nature are characterized by analyzing individual customer, not a market, performing marketing activities with customers, not for customers, by emphasizing the importance of the relationship to firms (Ramini and Kumar, 2008). The relational performance of interaction orientation is measured by customer satisfaction, customer ownership, and positive word of mouth (Ramini and Kumar, 2008). Long-term orientation Long-term orientation also creates a sustainable competitive advantage through information on best-selling product, best allowable price, cooperative advertizing, etc (Ganesan 1994). Firms with short-term orientation focus on market exchange for profit in a transaction, but firms with long-term orientation focus on relational exchange for profit from joint synergies over a series of transactions, not the length of the relationships (Ganesan 1994). Relational elements like long-term orientation increases mutual commitment to enhance mutual profitability in buyer-seller relationships (Noordewier et al 1990). 2.2 Value co-creation The customers co-create value based on their roles as participants or co-creators in various value-creating processes (Vargo and Lusch 2008a). Joint value is created among customer, suppliers, competitors, and other stakeholders involved in the relationship (Gummesson 1999). The various approaches to value co-creation have discussed. A unified value co-creation concept is explained by three types of processes such as customer value-creating processes, supplier value-creating process, and encounter processes (Payne et al., 2008). Value co-creation behaviors consist of customer participation behavior and customer citizenship behavior. Customer participation behavior that they conceptualizedand relationship performance. 2. Conceptual framework 2.1 Entrepreneurial Value Orientation Entrepreneurial Orientation Entrepreneurial-oriented firms with risk-taking, proactivness, and innovativeness focus on finding new market opportunities and reshaping current operating areas (Hult and Ketchen 2001). Entrepreneurial orientation provides firms with first-mover advantages and has a positive effect on performance. Entrepreneurs create value through innovation with exploiting new opportunity and creating new product-market areas. Market Orientation Market-oriented firms create superior value through the understanding of customers’ needs and the capabilities to fulfill those identified needs (Jaworski & Kohli, 1993). The value creation of market-oriented firms is based on strong commitment to developing product innovation capabilities (Atuahen-Gima, 1996). Market orientation provides firms with market-linking capabilities that help create and deliver value to customers (O’Cass and Ngo, 2012). Relationship Orientation Interaction orientation An interaction orientation is regarded as a sustainable competitive advantage and a value rare and as a value creation driver. Interaction oriented firms with specific and actionable nature are characterized by analyzing individual customer, not a market, performing marketing activities with customers, not for customers, by emphasizing the importance of the relationship to firms (Ramini and Kumar, 2008). The relational performance of interaction orientation is measured by customer satisfaction, customer ownership, and positive word of mouth (Ramini and Kumar, 2008). Long-term orientation Long-term orientation also creates a sustainable competitive advantage through information on best-selling product, best allowable price, cooperative advertizing, etc (Ganesan 1994). Firms with short-term orientation focus on market exchange for profit in a transaction, but firms with long-term orientation focus on relational exchange for profit from joint synergies over a series of transactions, not the length of the relationships (Ganesan 1994). Relational elements like long-term orientation increases mutual commitment to enhance mutual profitability in buyer-seller relationships (Noordewier et al 1990). 2.2 Value co-creation The customers co-create value based on their roles as participants or co-creators in various value-creating processes (Vargo and Lusch 2008a). Joint value is created among customer, suppliers, competitors, and other stakeholders involved in the relationship (Gummesson 1999). The various approaches to value co-creation have discussed. A unified value co-creation concept is explained by three types of processes such as customer value-creating processes, supplier value-creating process, and encounter processes (Payne et al., 2008). Value co-creation behaviors consist of customer participation behavior and customer citizenship behavior. Customer participation behavior that they conceptualizedcomprises four dimensions including information seeking, information sharing, responsible behavior, and personal interaction. Customer citizenship behaviors include feedback, advocacy, helping, and tolerance (Yi, and Gong 2013). 2.3 Relationship performance Ulaga(2003) proposed to identify the linkage between relationship value and relationship variables including commitment, trust, satisfaction, and loyalty. The authors consider trust, commitment, and loyalty as measurement items of relationship performance. Trust is measured as a dependent variable in channel relationships. Commitment is a good indicator of long-term relationships (Morgan and Hunt, 1994) and has been used as the dependent variable in several relationship marketing models including buyer-seller relationship (kumar et al., 1995). Consumer loyalty is related to a motivation to maintain a relationship with a firm, including more resources, positive word of mouth (WOM), and repeat purchasing (Zeithaml, Berry, and Parasuraman 1996). Value drives loyalty and trust affects loyalty through its influence in creating value (Sirdeshmukh, Singh and Sabol 2002) 3. Plan for Data Collection and analysis The instrument used to test the hypotheses a mail survey. A draft questionnaire based on existing measurement scales for the research model will be drafted. This draft questionnaire will be pretested with academics and practitioners to check its content validity and terminology and modified accordingly. The modified questionnaire will be pilot tested to check its suitability and appropriateness for the target population before mailing. The sample population for this study will be business-to-business manufacturing firms in South Korea. The authors will undertake both confirmatory factor analysis and structural equation modeling to test our hypotheses using the SPSS 20 and AMOS 20. 4. Expected outcomes and contribution 4.1 Expected outcomes The analysis will identify whether or not the positive influence of entrepreneurial value orientation has on value co-creation including customer participation behavior and customer citizenship behavior. The relationship between the value co-creation and relationship performances will be identified. The more actively customers engage in the value co-creation process, the greater trust, commitment, and loyalty could be positively influenced. Value co-creation plays an important role in increasing relationship performance and could be regarded as a source of sustainable competitive advantage. 4.2 Contribution This study will be the first effort to identify between the relationship between value co-creation and relationship performance. This research will be the first empirical study to apply the concept of value co-creation to business-to-business firms. In terms of marketing academics, this study will contribute to broaden marketing research areas. Managers of business-to-business firms from the results of this study will recognize valuable information on how the extent of an individual’s orientations such as entrepreneurial orientation, market orientation, and relationship orientation affects value co-creation.comprises four dimensions including information seeking, information sharing, responsible behavior, and personal interaction. Customer citizenship behaviors include feedback, advocacy, helping, and tolerance (Yi, and Gong 2013). 2.3 Relationship performance Ulaga(2003) proposed to identify the linkage between relationship value and relationship variables including commitment, trust, satisfaction, and loyalty. The authors consider trust, commitment, and loyalty as measurement items of relationship performance. Trust is measured as a dependent variable in channel relationships. Commitment is a good indicator of long-term relationships (Morgan and Hunt, 1994) and has been used as the dependent variable in several relationship marketing models including buyer-seller relationship (kumar et al., 1995). Consumer loyalty is related to a motivation to maintain a relationship with a firm, including more resources, positive word of mouth (WOM), and repeat purchasing (Zeithaml, Berry, and Parasuraman 1996). Value drives loyalty and trust affects loyalty through its influence in creating value (Sirdeshmukh, Singh and Sabol 2002) 3. Plan for Data Collection and analysis The instrument used to test the hypotheses a mail survey. A draft questionnaire based on existing measurement scales for the research model will be drafted. This draft questionnaire will be pretested with academics and practitioners to check its content validity and terminology and modified accordingly. The modified questionnaire will be pilot tested to check its suitability and appropriateness for the target population before mailing. The sample population for this study will be business-to-business manufacturing firms in South Korea. The authors will undertake both confirmatory factor analysis and structural equation modeling to test our hypotheses using the SPSS 20 and AMOS 20. 4. Expected outcomes and contribution 4.1 Expected outcomes The analysis will identify whether or not the positive influence of entrepreneurial value orientation has on value co-creation including customer participation behavior and customer citizenship behavior. The relationship between the value co-creation and relationship performances will be identified. The more actively customers engage in the value co-creation process, the greater trust, commitment, and loyalty could be positively influenced. Value co-creation plays an important role in increasing relationship performance and could be regarded as a source of sustainable competitive advantage. 4.2 Contribution This study will be the first effort to identify between the relationship between value co-creation and relationship performance. This research will be the first empirical study to apply the concept of value co-creation to business-to-business firms. In terms of marketing academics, this study will contribute to broaden marketing research areas. Managers of business-to-business firms from the results of this study will recognize valuable information on how the extent of an individual’s orientations such as entrepreneurial orientation, market orientation, and relationship orientation affects value co-creation.43 5. Research Model Value Co-Creation Customer ParticipationㆍInformation seeking ㆍInformation sharing ㆍResponsible behavior ㆍPersonal interactionCustomer Citizenship ㆍFeedbackㆍAdvocacyㆍHelpingㆍToleranceRelationship PerformanceㆍTrust ㆍCommitment ㆍLoyaltyEntrepreneurial Value OrientationEntrepreneurial Orientation(EO)Relationship Orientation(RO)MarketOrientation(MO)H1H2H3H4H5H6H7H8 Hypotheses H1: Entrepreneurial Orientation will have a positive influence on customer participation behavior in value co-creation process H2: Market Orientation will have a positive influence on customer participation behavior in value co-creation process H3: Relationship Orientation will have a positive influence on customer participation behavior in value co-creation process H4: Entrepreneurial Orientation will have a positive influence on customer citizenship behavior in value co-creation process H5: Market Orientation will have a positive influence on customer citizenship behavior in value co-creation process H6: Relationship Orientation will have a positive influence on customer citizenship behavior in value co-creation process H7: Customer participation behavior in value co-creation process will have a positive influence on relationship performance H8: Customer citizenship behavior in value co-creation process will have a positive influence on relationship performance

Pyrifluquinazon, as a quinazinalone chemical group, based on a new mode of biological activity. It is reported that mode of action is modifies insect behavior, rapidly stopping feeding such that insects starve to death. Time-release feature and mortality effect on M. persicae using different pyrifluquinazon nano type and non-nano type were compared. Pyrifluquinazon nano type was formulated with different molecular weight and density of used chitosan (CS 30000 0.1% and CS 3000 0.3%). In the CS 30,000 0.1%, the mortality was weakly occurred at early time, but steadily increased after 4days. Finally, we confirmed more than 70% mortality as a peak at 16days. In CS 3000 0.3%, the mortality showed about 70% until 18days as a effective controlled release. Also, We examine time-release feature and mortality effect on M. persicae according to the different pyrifluquinazon nano type(CS 30000 0.1% and CS 3000 0.3%) of concentrations. The CS 30000 0.1% bioassay results of different concentration were showed that the highest concentration(100ppm) was measured better mortality than other concentration at 0 day, but cannot confirm different effect about dissimilar concentration. However, increasing rates of M. persicae were low as treatment concentrate was high. In CS 3000 0.3% 100ppm concentration bioassay result, aphid mortality reached peak at 24 days and increasing rate also low. Additionally, for the comparing of bioassay and feeding behavior of M. persicae against pyrifluquinazon nano types and non-nano type, EPG technique was carried out. In case of non nano type, feeding inhibition efficacy was showed during 4 days after treatment, but appeared similar level with control after 10days. In CS 3000 0.3% 50ppm, residual efficacy was specially showed until 28days after treatment whereas treatments with CS 30000 0.1% were similar to the control after 22days. These result show that the change of feedinng behavior and motrality of M. persicae is correlated with the change of nano type or non nano type of pyrifluquinazon.

Several species of the genus Aphidius are used in biological control programs against aphid pests throughout the world and their behavior and physiology are well studied. But despite knowing the importance of sensory organs in their behavior, their antennal structure is largely unknown. In this study, the external morphology and distribution of the antennal sensilla on the antennal of both female and male adults of A. colemani were described using scanning electron microscopy (SEM). Generally, the filaform antennae of males (1,515.20±116.48 ㎛) are longer than females (1,275.06±116.42㎛). Antennae of this species is made up of scape, pedicel and flagellomeres. Male and female antennae differed in the total number of flagellomeres as 15 in males and 13 in females. Female and male antennae of A. colemani has samely seven types of sensilla. We classified sensilla placodea, Bohm bristles, 2 types of sensilla coeloconica, , 2 types of sensilla basiconica as with a tip pore and with wall pores, sensilla trichodea. In addition, the possible functions of the above sensilla types are discussed in light of previously published literature; mechanoreception(Bohm bristles, sensilla coeloconicaⅡ and sensilla trichodea) and chemoreception(sensilla coeloconicaⅠ, sensilla basiconicaⅠ,Ⅱ and sensilla placodea). Future studies on the functional morphology of the antennal sensilla of A. colemani using transmission electron microscopy (TEM) coupled with electrophysiological recordings will likely confirm the functions of the different sensilla identified in this study.

As indigenous aphid parasitoid, Aphelinus varipes kill aphids for feeding in addition to parasitization. Because of this characteristic of A. varipes, this parasitoid may have the possibility of biological control agent against aphids. So we have evaluated traits such as daily paratization, total parasization, number of aphids killed by host feeding, sex ratio, development time, pupal mortality of A. varipes parasitizing green peach aphid, Myzus persicae. At 25°C and 16L:8D, longevity, total paratization and host feeding of A. varipes female was 11.0, 25.3, and 63.3 days, respectively. And development time of male and female, sex ratio (M:F), pupa mortality of offspring of A. varipes were 12.0 days, 12.5 days, 0.88, and 11.6%, respectively. However, because these results are not enough to estimate potential of A. varipes as biological control agents/factors, other factors such as host suitability (Macrosiphum euphorbiae, Aulacorthum solani), effect of temperature, and host seeking behavior of A. varipes continually will be investigated.

The multicolored Asian ladybird beetle, Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), is common to a wide range of natural and agricultural habitats. Applications of gamma irradiation minimized the losses of stored food and the death or failure of emergence in larval and pupal stages. On the other hand, degrade toxin waste as one of alternative to chemical pesticide for both quarantine and sprout control purposes of storage crop pest. So, we have investigated whether gamma irradiation exposed to eggs, lava, pupa and adults of H. axyridis. It may be affected the emergence, fertility, fecundity, development period and sex ratio of H. axyridis. Some changes of physiological characteristics may be applied to more efficient agents as biological control of several aphids. Insects were exposed to gamma irradiation from 0 to 500 Gy of 60Co depended on their developmental stages. The results showed that the first instar, eggs, third instar, pupae, and adults were more sensitive in order of irradiation dose. And fecundity and fertility of female adults were significantly decreased with increasing gamma irradiation dose at all tested individuals.