박하유의 갈색날개매미충(Pochazia shantungensis)에 대한 기피효과

류태희,권혜리,유용만,윤영남,Ryu, Tae Hee,Kwon, Hye Ri,Yu, Yong Man,Youn, Young Nam 한국응용곤충학회 2016 한국응용곤충학회지 Vol.55 No.3

갈색날개매미충의 방제전략을 확대하기 위하여 박하유에 대한 기피 효과를 살펴보았다. 23종의 방향유를 Y-tube olfactometer를 이용하여 후각 검정을 실시한 결과, 박하유(peppermint oil)와 lemongrass oil을 제외한 21종의 방향유는 갈색날개매미충에 대하여 기피반응이 나타나지 않았다. 단지 박하유만이 80% 이상의 기피효과가 관찰되었다. 박하유의 처리량에 따른 기피반응을 조사한 결과, 갈색날개매미충은 0.1, 0.5, $1{\mu}l$ 처리시 기피율이 점차 높아졌으며, $10{\mu}l$(76.47%) 처리량에서 높은 기피효과를 보였다. 박하유에는 1,8-cineole(4.7%), menthone(23.9%), iso-menthyl acetate(8.0%), menthol(53.7%) 등이 함유되어 있었다. 이들의 주요 성분함량을 혼합하여 Y-tube olfactometer를 이용하여 후각 검정한 결과, $5{\mu}l$ 처리시 76.2%의 높은 기피율을 보였다. 박하유는 야외에서 갈색날개매미충의 기피 및 산란 기피효과를 보였으나 단시간에만 활성이 강한 점과 약해의 가능성을 보아 제형 개발의 필요성이 대두된다. In order to identify a new control measure for a sporadic insect pest, Pochazia shantungensis, 23 types of essential oils were screened for their repellent effects, with an olfactory test using a Y-tube olfactometer. Results indicated that 21 essential oils, except lemongrass oil and peppermint oil, did not show repellent activity against P. shantungensis. The repellent effect of peppermint oil was over 80%. When 0.1, 0.5, and $1{\mu}l$ of peppermint oil were used, the rate of repelling of P. shantungensis gradually increased, and was as high as 76.5% when $10{\mu}l$ was used. The main components of peppermint oil were 1,8-cineole, iso-menthyl acetate, menthone, and menthol, at 4.7, 8.0, 23.8 and 53.7%, respectively. When the three main components were mixed using a Y-tube olfactometer, a strong repellent effect (76.2%) was observed when $5{\mu}l$ was used. Peppermint oil showed a repellent and ovipositional repellent effect against P. shantungensis in the field. However, this activity persists only for a short period, and high concentrations can lead to phytotoxicity. Therefore, it is necessary to develop ideal formulations.

친환경 구기자재배지에서 해충의 계절 발생소장 및 친환경유기농자재의 방제효과

류태희(Tae-Hee Ryu),박상은(Sang-Eun Park),고나연(Na-Yeon Ko),김정곤(Jeong-Gon Kim),신효섭(Heo-Seob Shin),권혜리(Hye-Ri Kwon),김영국(Yeong-Guk Kim),이보희(Bo-Hee Lee),서미자(Mi-Ja Seo),유용만(Yong-Man Yu),윤영남(Young-Nam Youn) 한국농약과학회 2013 농약과학회지 Vol.17 No.4

친환경 구기자재배지에서 다년간 해충발생양상

류태희(Tae-Hee Ryu),강찬영(Chan-Yeong Kang),정유빈(Yu-Bin Jung),고나연(Na-Yeon Ko),권혜리(Hye-Ri Kwon),서미자(Mi-Ja Seo),유용만(Yong-Man Yu),윤영남(Young-Nam Youn),김영국(Yeong-Guk Kim) 충남대학교 농업과학연구소 2014 농업과학연구 Vol.41 No.4

The occurrence of insect pests of Lycium chinense was monitored at 4 organic farms that was cultivated with environment-friendly management at Cheongyang, Chungnam from May, 2012 to September, 2014. Total 4 orders and 18 species occurred in the L. chinense. Among them, 4 major pests and Lepidopteran and Hemipteran insect pests were investigated the occurrence pattern. During the budding, the population density of Myzus persicae was very high in late-May and early-June, and the injury by Lema decempunctata was increased from mid-June. The injuries by Henosepilachna vigintioctomaculata and Hedma lycia sp. were continued throughout the growing season. From the fruit held in late-July, hemipteran insects including Plautia stali and Halyomorpba balys were sucking the fruit, and their injury to L. chinense were gradually increased. In the case of Eriophys macrodonis densities to increase gradually from early July. The population density of E. macrodonis in 2014 was rapidly increased more than 5 times compared with 2012 and 2013. It was supposed that the initial control of mites or the removing of over-wintering density in the past year might be neglected. However, there is a need to more review the factors for the mass occurs.

잠재해충 꽈리허리노린재(Acanthocoris sordidus, Coreidae, Hemiptera)의 무리군 형성에 따른 생태적 특성

강찬영,류태희,권혜리,유용만,윤영남,Kang, Chan Yeong,Ryu, Tae Hee,Kwon, Hye Ri,Yu, Yong Man,Youn, Young Nam 한국응용곤충학회 2016 한국응용곤충학회지 Vol.55 No.3

꽈리허리노린재는 가지과 및 메꽃과 기주에 피해를 주는 해충이다. 꽈리허리노린재는 실내의 $25^{\circ}C$ 조건에서 1세대는 평균 76일정도 소요되며, 성충으로 월동하기 때문에 수명이 길고, 일정한 주기 없이 알을 덩어리로 산란한다. 주로 잎 뒷면에 산란하며, 암컷 한 마리당 평균 195개, 최대 468개까지 산란하는 것으로 나타났다. 또한, 온도가 높아질수록 부화율은 높아지며, 발육기간은 짧아졌지만, $25^{\circ}C$를 제외한 다른 온도에서는 탈피율이 30%이하를 나타냈다. 위 결과를 토대로 선형모델로 추정한 결과 발육영점온도는 $13.9^{\circ}C$, 유효적산온도는 526.3DD를 나타냈다. 고추재배지에서 월동 성충이 6월 말 평균기온 $25.7^{\circ}C$에서 나타나기 시작하여, 9월초에 가장 높은 밀도를 나타내었다. 부화한 개체들은 성충이 될 때까지 이동성이 적었으며 밀집하여 분포하였다. 집단을 형성하는 요인을 알아보고자 Net cage와 Y-tube olfactometer를 이용한 행동실험 결과, 암컷은 수컷과 암컷이 모두 있는 곳을 선택하였지만, 수컷은 암컷과 수컷이 모두 없는 곳을 선택하였다. 수컷이 새로운 기주를 찾아 정착하면, 암컷은 기주를 독점한 동종이 많이 있는 기주를 찾아가는 교미와 관련된 행동을 나타냈으며, 통신화합물의 영향은 알 수 없었다. 집단이 미치는 영향을 알아본 결과 꽈리허리노린재는 좁은 공간에서 집단으로 사육시 약충의 발육기간이 길고 우화율이 높아지는 반면, 개체 사육시 발육기간이 짧고, 우화율이 낮게 나타났다. 반면에 넓은 공간에서는 집단으로 사육 시 약충의 발육기간은 짧고 우화율은 낮게 나타났다. The winter cherry bug, Acanthocoris sordidus (Thunberg), is an insect pest hat damages plants from Solanaceae and Convolvulaceae. The developmental period from egg to adult averages 76 days at $25^{\circ}C$. Adult egg-laying occurred irregularly via spawning, averaging 195 (up to 468) eggs per individual on the abaxial leaf surface of the host plant. Results of linear regression indicated that the lower developmental threshold temperature was $13.9^{\circ}C$ and the effective accumulated temperature was 526.3 DD. Data from a pepper field in 2015 indicated that overwintering adults first appeared during late June (daily average temperature = $25.7^{\circ}C$), reaching maximum density by early September. A choice test examining colonization preferences using a net cage and a Y-tube olfactometer revealed that females gravitated toward conspecifics (other females, males, or both), whereas males moved toward empty areas. Finally, we found that communal breeding results in a longer developmental period and higher eclosion rates than solitary breeding. Developmental periods and eclosion rates were also for colonies in a large space than for those in a small space. This outcome suggests that colonization effects on insect development are stronger in a smaller area.

하우스시설 재배지에서 발생하는 주요 선충

김세희(Sae-Hee Kim),박상은(Sang-Eun Park),고나연(Na-Yeon Ko),류태희(Tae-Hee Ryu),신효섭(Heo-Seob Shin),권혜리(Hye-Ri Kwon),서미자(Mi-Ja Seo),유용만(Yong-Man Yu),윤영남(Young-Nam Youn) 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

To know how much damages occurred by nematodes in plastic vinyl house field, soil samples were collected from strawberry cultivation areas at Buyeo and Nonsan in Chungnam and Jinju in Kyeongnam, melon cultivation area at Gocksung in Junnam and cucumber field at Gongju in Chungnam. And then, nematode samples were separated from each soil sample, and identified the kind of plant-parasitic nematodes. Plant-parasitic nematodes were separated from 52 soil samples. Among samples, Meloidogyne spp., Pratylenchus spp. and Helicotylenchus spp. were isolated from 45 (86.5%%) and 33 (63.5%) and 47 collected soil samples (90.4%), respectively. As a result of identification of plant-parasitic nematodes from regional collected soil samples, distribution of Helicotylenchus spp. was higher than any other plant-parasitic nematode. And the population of Meloidogyne spp. and Pratylenchu spp. were also higher, and a occurrence ratio of Meloidogyne spp. is higher than Pratylenchu spp. except the cucumber growing area at Gongju.

구기자에서 큰이십팔점박이무당벌레(Henosepilachna vigintioctomaculata)의 온도조건에 따른 발육특성과 친환경제재에 의한 방제효과

강찬영(Chan-Yeong Kang),류태희(Tae-Hee Ryu),정유빈(Yu-Bin Jung),고나연(Na-Yeon Ko),권혜리(Hye-Ri Kwon),서미자(Mi-Ja Seo),유용만(Yong-Man Yu),윤영남(Young-Nam Youn),김영국(Yeong-Guk Kim) 충남대학교 농업과학연구소 2014 농업과학연구 Vol.41 No.4

Host plants of the Henosepilachna vigintioctomaculata are known as Solanaceae plants such as potato, tomato, eggplant and Lycium chinense. Henosepilachna vigintioctomaculata (Motschulsky) cause continuous damage from early June to mid-August in leaves of L. chinense under environmental-friendly management in Cheongyang, Chungnam. The developmental period of egg and larva of H. vigintioctomaculata were investigated. H. vigintioctomaculata were reared on L. chinense at several temperatures, for example, 15, 20, 25 and 30°C in the laboratory. In addition, the control effect of 5 eco-friendly agricultural materials were examined. As results, hatching rate is the highest to 91% at 25°C. Egg periods were 10.8, 7.7, 5.1 and 3.7 days at each tested temperature, respectively. And the total developmental periods from egg to adult were 42.7, 26.3, 18.4 and 19.4 days at each tested temperature, respectively. Otherwise, their eclosion rates from pupa to adult were showed 58%, 77%, 85%, 65% at each tested temperature, respectively. As a result of the control effect, both adults and larvae of H. vigintioctomaculata were shown a high mortality to mixture with extract of Sophora flavescens, Chenopodium ambrosioides and Melia azedarach. Additional, larvae is shown high mortality to extract of Azadirachta indica and Cymbopogon nardus. Thus H. vigintioctomaculata might be controled by using plant extract of eco-friendly agricultural materials in due season.

지역별 시설재배지에서 식물기생선충의 살선충제에 대한 밀도억제 효과 비교

김세희,박상은,고나연,류태희,신효섭,권혜리,서미자,유용만,윤영남,Kim, Sae-Hee,Park, Sang-Eun,Ko, Na-Yeon,Ryu, Tae-Hee,Shin, Heo-Seob,Kwon, Hye-Ri,Seo, Mi-Ja,Yu, Yong-Man,Youn, Young-Nam 한국응용곤충학회 2013 한국응용곤충학회지 Vol.52 No.3

과채류 재배지에서 발생하는 식물기생성 선충의 방제를 위해 충남 공주의 오이 재배지와 충남 부여와 논산, 경남 진주의 딸기 재배지, 전남곡성의 메론 재배지역에서 시설재배와 노지 재배를 하고 있는 농가토양을 채취하여 선충을 분리, 동정한 후 각 지역별 토양에서 abamectin 1.68% SC, cadusafos 3% GR, dazomet 98% GR, fosthiazate 30% SL, BA12011 SL 등 약제들의 선충에 대한 밀도억제 효과를 알아보기 위하여 실내실험과 포장실험을 실시하였다. 대부분의 지역에서 채취한 토양 시료에 분포하고 있는 식물기생성 선충의 평균밀도가 약제처리 후 감소하는 것으로 확인되었지만, 부여의 경우 fosthiazate 처리시 Pratylenchus spp.가, 곡성의 경우 fosthiazate, abamectin, cadusafos, dazomet 처리시 Pratylenchus spp.에 대하여 토양 내 평균 밀도가 상승하였다. 또한 BA12011 처리시 약제처리 후 다른 약제와 비슷한 수준의 개체군 평균밀도를 보였으며, 특히 공주 토양에서는 fosthiazate의 약제처리 효과보다 모든 종에서 높은 방제효과를 확인하였다. 각 지역에서 채취한 토양에 약제처리를 한 후 난낭 형성을 확인한 결과, abamectin의 경우 부여와 진주의 토양에서 효과를 보였고, BA12011은 논산과 곡성, dazomet는 공주에서 난낭 형성을 억제하는 효과를 확인하였다. BA12011을 가지고 오이재배지에서의 방제효과를 살펴본 결과, Meloidogyne spp., Pratylenchus spp., Helicotylenchus spp.의 평균 밀도가 감소하였고, 2차 처리시보다 1차 처리시 평균 밀도의 감소율이 높은 것으로 보아 초기 단계의 방제의 중요성을 확인할 수 있었다. To assess the efficacy of nematicides for the control of plant-parasitic nematodes in fruit and vegetables fields, soil samples were collected from a cucumber field at Gongju; from strawberry fields at Buyeo, Nonsan, and Jinju; and from a melon field at Gocksung in Jeonnam Province, Korea. Plant-parasitic nematodes were separated from each soil sample and identified. The susceptibilities of the nematodes to abamectin 1.68% SC, cadusafos 3% GR, dazomet 98% GR, fosthiazate 30% SL and BA12011 SL were examined under laboratory and field conditions. The average population density of plant-parasitic nematodes was generally reduced after the treatment with nematicides; however, there was increase in the population of Pratylenchus spp. in soil after treatment with fosthiazate at Buyeo and Gocksung. Furthermore, there were increased populations following treatment with abamectin, cadusafos, and dazomet at Gocksung. The control effects of BA12011 treatment on plant-parasitic nematodes were confirmed to be similar to those of the other 4 nematicides evaluated, although its control effect was higher than that of fosthiazate in cucumber-growing soil at Gongju. The effects of nematicide treatment on egg mass formation in each of the collected soils differed according to the region of soil origin. Abamectin was effective in reducing the degree of egg mass formation in Buyeo and Jinju soil, whereas BA12011 was effective in Nonsan and Gocksung soil. Dazomet was found to inhibit egg mass formation in Gongju soil. To evaluate the effect of the newly developed nematicide, BA12011, experiments were conducted in a cucumber-growing greenhouse. The average population densities of Meloidogyne spp., Pratylenchus spp., and Helicotylenchus spp. after the first treatment were reduced to a greater extent than after the second treatment. It is thus suggested that early nematicide treatment is important for effective control of plant-parasitic nematodes.

꽈리허리노린재(Acanthocoris sordidus, Coreidae, Hemiptera)에 대한 몇 가지 살충제와 친환경농자재의 활성평가

강찬영(Chan-Yeong Kang),류태희(Tae-Hee Ryu),권혜리(Hye-Ri Kwon),유용만(Yong-Man Yu),윤영남(Young-Nam Youn) 한국농약과학회 2016 농약과학회지 Vol.20 No.2

오피스 가구류의 음성저감 성능 평가

김소영(So-young KIm),김용희(Yong-hee Kim),정휘동(Hwi-dong Jung),류태희(Tae-hee Ryu),전보람(Bo-ram Jeon) 한국소음진동공학회 2020 한국소음진동공학회 학술대회논문집 Vol.2020 No.11

Polymeric Cinchona Alkaloids를 촉매로 이용한 케텐과 클로랄의 2, 2-Cycloaddition 반응

조성희,류태희 中央大學校 基礎科學硏究所 1994 基礎科學硏究所 論文集 Vol.8 No.-

Poly(cinchona alkaloid-co-acrylonitrile)s la-d, succinylated polymer(macroporous styrene-divinyl-benzene copolymer) bounded quinidine 2, acryloyl quinidine 3a, and (acryloyl quinidine) 3b catalyze the addition of ketene to chloral at -50℃ in toluene. The optically active 4-(trichlorome-thyl)-2-oxethanone was obtained in 22-100% e.e.. The copolymer catalysis were recycled without the loss of their enantioselectivity. We have also investigated the catalytic and enantioselectivity of (S)-nicotine and (S)-(+)-diphenyl(1-methylpyrrolidin-2-yl)methanol as a chiral Lewis base catalyst.