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Control effect of acetamiprid+spinetoram SC against sweetpotato whitefly, Bemisia tabaci biotype-Q
Youlee Joo,Jeong-Oh Yang,Gil-Hah Kim,Dong-Ku Shin,Choel Jang,Eun-Choel Park,In-Chon Hwang 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.10
This study was done to evaluate the susceptibility, systemic effect, residual effect and control effect in each developmental stages of biotype Q of sweetpotato whitefly against insecticides, acetamiprid+spinetoram SC and dinotefuran SG. Two insecticides were showed similar activity against the eggs, and showed higher activity in acetamiprid+spinetoram SC against the nymph and adult. In systemic effect, two insecticides have a similar activity. It was showed higher activity in root zone systemic application than leaf zone systemic application. Residual effect was showed higher in acetamiprid+spinetoram SC (92%) than dinotefuran SG (44 %) at seven days after treatment. Control effect was showed all over 90 % activity at tree- and seven days after treatment. Therefore, these insecticides are expected to control the sweetpotato whitefly effectively.
IPA기법을 활용한 MZ세대의 태권도복 선택속성에 대한중요도와 만족도 분석
최유리 ( Youlee Choi ),김일광 ( Ilgwang Kim ),박종철 ( Jongchul Park ) 인문사회 21 2023 인문사회 21 Vol.14 No.1
연구 목적: 본 연구는 IPA기법을 활용하여 MZ세대의 태권도복 선택속성에 대한 중요도와 만족도를 알아보는데 목적이 있다. 연구 방법: 2022년 11~12월 수도권 지역 대학교 5곳의 태권도학과 학생과 태권도장의 MZ세대 수련생 총 340명에 대한 설문자료에 대해 SPSS 26.0을 활용하여 탐색적 요인분석, 신뢰도 분석, 빈도분석 및 IPA 분석을 실시하였다. 연구 내용: Ⅰ사분면에는 디자인, 색상, 아름다움, 무게, 착용감, 편안함, 브랜드명, 품질 등 8개의 속성이 포함되었다. Ⅱ사분면에는 땀 흡수와 신축성이 위치하였다. Ⅲ사분면에는 독특함, 비싸더라도 유명한 브랜드, 상대적으로 비싼 브랜드, 멋진 친구가 자주 입는 브랜드, 친구들이 자주 말하는 브랜드, 유명 선수나 연예인이 착용하는 브랜드 등 6개 속성이 포함되었다. Ⅳ사분면에는 유행 브랜드와 주변 사람들이 인지하고 있는 브랜드가 포함되었다. 결론 및 제언: 태권도복 기업은 고기능성 도복을 개발하고 기능성에 초점을 맞춰 브랜드 컨셉을 전략적으로 관리하는 노력이 필요하다. The purpose of this study is to identify the importance and satisfaction of the MZ generation’s Taekwondo uniform selection attributes. Exploratory factor, reliability, frequency, and IPA analyses were conducted using SPSS 26.0 for a total of 340 Taekwondo students and MZ generation trainees. The I quadrant included design, color, beauty, weight, fit, comfort, brand name, and quality. Sweat absorption and elasticity were located in the II quadrant. The III quadrant included uniqueness, a famous even if expensive, a relatively expensive brand, a brand often worn by cool friends, a brand often spoken by friends, and a brand worn by famous athletes or celebrities. Fourth, the IV quadrant included fashionable brands and brands recognized by people around them. Taekwondo uniform companies need to develop high-functional uniforms and strategically manage brand concepts by focusing on functionality.
Indiragandhi P.,Youlee Joo,Jeong-Oh Yang,Gil-Hah Kim 한국응용곤충학회 2008 한국응용곤충학회 학술대회논문집 Vol.2008 No.10
Tobacco whitefly-Bemisia tabaci is considered one of the most important pests in tropical and subtropical agriculture, as well as in production systems in glasshouses in temperate zones. Principle research on the identity of B. tabaci began with the recognition of more than one biotype differing in life history parameters, host plant associations, plant-related damage and insecticide resistance. Our laboratory strains of B. tabaci were identified and classified as biotype B and Q, through mtCOI PCR. Also, they were tested for their host plant preference and reaction to different insecticide. Biotype Q prefers to feed on red pepper and tomato, was less susceptible to tested insecticides, for instance acetamipirid, spinosad and thiamethoxam, than the biotype B (feed on tomato alone). There has been a report on the presence of gut bacteria in B. argentifolii (= B. tabaci biotype B) and its influence on the host insect processes. Hence, as a further pursuit, we examined our laboratory B. tabaci biotypes B and Q for their gut bacteria, whether these two biotypes are differed with each other. Gut bacterial strains isolated by standard surface sterilization method was identified through 16S rRNA gene sequence. Gut bacterial strains of B. tabaci biotypes B and Q and their close relatives retrieved from the public database (NCBI) indicated that the biotype B was less diversified only with four genera viz., Bacillus, Micrococcus, Pseudomonas and Staphylococcus, whereas the biotype Q diversified with six such as Bacillus, Janibacter, Micrococcus, Staphylococcus, Stenotrophomonas, and Streptomyces. Results of the present investigation suggesting that there may be a relationship with gut bacterial strains and susceptibility to insecticides and host plant preference of B. tabaci biotype B and Q.