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Lee, Jeang-Oon,Goh, Heun-Gwan,Kim, Yong-Heon,Kim, Jeung-Han,Park, Chan-Heung 한국곤충학회 1982 Korean journal of entomology Vol.12 No.2
Double microencapsulated sex pheromone formulation for the striped rice borer, Chilo suppressalis, was used at the doses of 10 and 30mg per trap with 100$\mu\textrm{g}$ attractant sources. The dose of 30mg was found to be effective in completely disrupting male orientation for ca. 7~10 days under the field conditions. Mating disruption induced by the application of 10mg during the same period after treatment was reduced by ca. 9~22%, compared with that of 30mg. Polyethylene vial was found to be very steady and efficient releaser of pheromone, giving male orientation disruption for at least 20 days in the case of 30mg. 이화명나방(Chilo suppressalis Walker)의 합성 성pheromone((Z)-11-hexadecenal+(Z)-13-octadecnal)을 이용한 이화명충 방제효과를 구명하고저 야외에서 시험한 결과 Microencapsulation된 pheromone을 trap 주위에 30mg을 산포할 경우 처리 7~10일 후까지 성충 교미교란, 효과가 있었으며 Hexane으로 희석한 pheromone 용액을 polyethylene vial에 넣어 유인 trap 주위에 둥글게 배치할 경우 처리 20일후 까지도 교미교란 효과가 있었다.
二化螟虫(Chilo suppressalis W.)에 對한 벼品種 抵抗性에 關한 研究
Jeang-Oon Lee,Joong-Soo Park,Hong-Sun Kim 한국응용곤충학회 1974 한국응용곤충학회지 Vol.13 No.2
이화명충(Chilo suppressalis Walker)에 대한 벼 품종별 저항성을 알기 위하여 통일(수원 21교, 진흥, IR747, 수원 229호 등 58개 품종을 공시하여 시험을 하였다. 실내시험에서 유충기간은 품종간 대차없었다. 유충체중은 감수성 품종에서는 34.4mg이었으나 저항성 품종은 18.0mg이었으며 용화율도 저항성 품종에서 높았다. 산난선호성 시험에서는 수원 240호 천추락 등이 낮은 선호성을 보였고 포장조사에서는 Tetep, 망게스 찰 IR747등이 낮은 피해경률을 나타내었다. Several selected rice varieties Tong-il (Suweon #213-1), Jinheung, IR747, Suweon #229 and so forth were evaluated for their resistance to the striped rice borer, Cltilo suppressalis Walker. The resistance appears to be non-preference and antibiosis in nature. Under laboratory and greenhouse conditions, resistance to striped rice borer was manifested by the low larval weight, percentage of pupation and number of eggs recorded. In the cage test, varieties Suweon #240 and Shenshuraku appeared to be non-preferred by the borer moths for oviposition. Under field condition, variety Tetep received the lowest percentage of infested tillers.
국내 미기록 진딧물병원성 곰팡이 , Pandora neoaphidis 에 관한 보고
윤철식,이정운,성기호,유재기,최병렬 한국균학회 1998 韓國菌學會誌 Vol.26 No.3
The aphid-attacking fungus Pandora neoaphidis was collected during May and June, 1998 at various localities: two localities at Kyunggi, three at Kangwon, one at Kyungbuk and one at Chungnam Provinces. Occurrence of this fungus has never been recorded in Korea. The potential host aphids are Acyrthosiphon kondoi, Myzus persicae, Lipaphis erysimi, Sitobion avenae, Aphis rumicis, Dactynotus species and unknown species. Microscopic characters of the fungus are described and illustrated. Pandora neoaphidis studied in this study has an extremely broad range in conidial size and shape even within a single specimen. Such variable size and shape are typical characters of the fungus. During microscopic examination of specimens, the resting-spore phase was not observed.
복숭아혹진딧물에서 발견된 국내 미기록 곤충병원성 곰팡이 Entomophthora planchoniana 에 관한 보고
윤철식,이정운,성기호,이건형,박현수 한국균학회 1998 韓國菌學會誌 Vol.26 No.3
An entomophthoraceous fungus, Entomophthora planchoniana, was found in populations of the green peach aphid, Myzus persicae, at Kunsan city on June 2, 1998. Occurrence of this species has never been recorded in Korea. Microscopic observations of this fungus are described, and illustrated. Unique characters are that it forms unitunicate muscae-like conidia with 4-6 nuclei, and is the only Entomophthora species which can attack aphids.
Insecticide Resistance in the Tobacco Cutworm, Spodoptera litura(Fabricius) (Lepidoptera: Noctuidae)
Kim, Yong-Gyun,Cho, Jum-Rae,Lee, Joon-Ik,Kang, Sung-Young,Han, Sang-Chan,Hong, Ki-Jung,Kim, Hong-Sun,Yoo, Jae-Ki,Lee, Jeang-Oon Korean Society of Applied Entomology 1998 Journal of Asia-Pacific Entomology Vol.1 No.1
Field populations of the tobacco cutworm, Spodoptera litura(Fabricius), showed resistance to commonly used insecticides. Development of resistance in the field populations to pyrethroids (cypermethrin, deltamethrin, ethofenprox, ethofenprox+PAP and fenvalerate) ranged from 100- to 2,700-fold, showing the highest resistance level to deltamethrin. Resistance to organophosphorus in secticides(chlorpyrifos, chlorpyrifos-methyl, EPN and pyraclofos) ranged from 2- to 32-fold with the highest level to chlorpyrifos. Resistance to carbamates (carbaryl and methomyl) ranged from 4- to 80-fold with the higher level to carbaryl. Detoxifying enzyme assays revealed that esterase and glutathione S-transferase activities were varied from 2- to 6-fold among the field populations. In addition, the bimolecular rate constants for inhibition of acetylcholinesterase by dichlorvos, eserine and monocrotophos showed 1.5-, 4.5- and 4.3-fold differences, respectively, between two different field populations. These results indicated that the broad spectrum of insecticide resistance observed in the filed populations was due to multiple resistance mechanisms, including increased detoxification of these insecticides and insensitive acetylcholinesterase.
Kijong Cho,Uhm, Ki Baik,Lee, Jeang Oon Korean Society of Applied Entomology 1999 Journal of Asia-Pacific Entomology Vol.2 No.1
Effects of the kind of test leaf and temperature on leaf dip bioassay to the western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), were examined with nine different insecticides. For the test of different leaves, cucumber, pepper and potato leaves were evaluated. The test leaves significantly influenced thrips mortalities on leaf dip bioassay. Generally the mortalities on pepper leaf were higher than on cucumber leaf or filter paper. Temperature effects the mortalities on pepper leaf were higher than on cucumber leaf or filter paper. Temperature effects were determined at 15, 20, 25 and 3$0^{\circ}C$. Regardless of the test leaf, the mortality was increased with increasing temperature except for the case of imidacloprid. Local variations in mortality of F. occidentalis populations were not observed in this study.