• Life and Agrochemicals
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• s.280
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• pp.28-29
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• 2012

후기에 발생하는 벼 병해는 기상상황과 관련지어 발생이 어떻게 변화할 것인가를 예측하는 것이 매우 어렵다. 7월 중하순의 집중호우, 8월의 게릴라성 호우와 고온, 9월의 고온지속 등과 같은 이상기상 현상은 출수기에 이삭도열병, 세균벼알마름병 등을 매우 심하게 발생시킬 수 있다. 따라서 정확한 병 발생 예찰에 따라 언제 어떻게 방제를 하고 관리할 것인가는 매우 중요하다.

• Korean journal of applied entomology
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• v.21 no.1 s.50
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• pp.19-22
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• 1982

There was a highly positive correlation between the number of trapped conidia from fourteen days to four days before direct observation of blast lesion was made and leaf blast incidence. This same relationship was found between the number of conidia trapped from August 11 to August 15 and August 21 to August 25 and percent of panicle blast incidence in a Japonica type cultivar Jinheung. Using iodine-potassium iodide (I-KI) method, it was able to detect infection sites of the blast fungus under the field conditions within 30 minutes. The detection of infection sites was four days earlier than direct observation of leaf blast lesion.

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2001.11a
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• pp.91-91
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• 2001

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2005.09a
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• pp.62-62
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• 2005

• Korean journal of applied entomology
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• v.40 no.3
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• pp.219-226
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• 2001

To identity the composition and ratio of the sex pheromone in the asiatic leafroller, Archippus breviplicanus (Walsingham), which is a major pest on apple leaves, and to develop a monitoring system using this sex pheromone, abdominal tips of their virgin female during the calling period were extracted and analysed. The GC/GC-MS analysis revealed the following three compounds; (E)11-tetradecenyl acetate (E11-14: Ac), (Z)11-tetradecenyl acetate (Z11-14: Ac), and tetradecyl acetate(14: Ac) with the ratio of 56:22:22. Electroantennogram (EAG) assay was also conducted to examine biological activity of the components. The three components evoked significantly higher responses than hexane or air but there was no significant differences between the mixtures made by components. Field trapping experiments for determining the optimum blend, seasonal fluctuation and the optimum amount for male attracting were carried out over 4 years from 1997 to 2000. Although male moths were attracted to 8:2 and 7:3 between E11-14: Ac and Z11-14: Ac, their 7:3 blend was found to be the most effective. Archippus breviplicanus appears to occur three times a year in Korea. The optimum amount for monitoring was found to be 1mg per trap. 14: Ac, the third component, did not show synergistic effect on male moth attraction.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.7 no.4
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• pp.88-96
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• 1986

도열병은 벼농사에 발생하는 40여종의 병해중 가장 피해를 많이 주는 무서운 병으로 발생의 역사가 다른 병해에 비해 길고 많은 연구가들이 내병성품종 육성과 농약등에 관해 시험연구를 계속 실시하고 있으며 농민들이 적극방제를 해도 아직까지 완전해결을 못보고 매년 피해를 보고 있다. 특히 ''60$\~$''70년대 중반기까지는 일반계품종에서 도열병이 많이 발생되었으나 ''78년에는 통일계(다수계)품종에서 피해가 많이 나타났고 ''80년에는 냉해로 인한 도열병 피해가 많았으며 그 후에도 국지적으로 상습지, 사질답, 방제소홀답, 과비답에서 피해가 나타나고 있다.

• The Bimonthly Magazine for Agrochemicals and Plant Protection
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• v.11 no.1 s.94
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• pp.65-75
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• 1990

''벼물바구미가 국내에 침입할 가능성은 수년전부터 예견되어 검역, 방역 및 연구분야에서 이를 주시하여 왔었다. 드디어 1998년 7월 2일 국내에서 발생이 최초로 확인되어 많은 사람들의 관심을 끌었고 이와 관련된 분야의 전문가들에게 새로운 일거리를 하나 더 제공함과 동시에 문외한들에게도 벼물바구미라는 해충을 인식시킬 수 있을 만큼 화제의 대상이 되었다. 이제는 지난 2년 동안의 발생과 방제 상황을 종합 분석해 보고 이 해충에 대처하는데 있어 전시적인 것은 지향하고 효율적인 방법을 추구하여 생력방제가 되도록 해야할 것이다. 이 글은 벼물바구미에 관하여 국내 최초발견 전후의 발생상황, 경남 농촌진흥원에서 수행한 연구결과, 예찰자료, 일본 아이찌현 농업시험장 연구보고서 발췌요약한 것이다.''

• Korean journal of applied entomology
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• v.52 no.4
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• pp.341-348
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• 2013

We desinged and evaluated a remote-sensing sex pheromone trap for real-time monitoring of Mythimna separata (Lepidoptera: Noctuidae), a migratory insect in Korea. The system consisted of a modified cone-trap with a sex pheromone lure, a sensing module based on light interruption, a signal transmission module based on code division multiple access, a main electronic board for system control, a power supply based on a solar collector, a stainless steel-pole supporting the system, and a signal collection and display system based on an internet web page. The ratio (>92%) of the actual number of insects to the signal number in the remote-sensing trap was improved by sensing only within a limited period at night on the basis of the insect's circadian rhythm, control of signal sensitivity on the basis of sensing software programming, 1-h interval for signal transmission, and adjustment of the signal transmission program. The signal occurrence pattern in the remote-sensing trap was conclusively similar (correlation coefficient, >0.98) to the actual pattern of adult occurrence in the trap. The result indicated that the remote-sensing trap based on the attraction of the sex pheromone lure for M. separata has a promising potential for practical use. Occurrence of M. separata adults was observed several times in 2011 and 2012, and the peaks were sharp.

• Korean journal of applied entomology
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• v.48 no.1
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• pp.59-65
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• 2009

This study was conducted to determine pheromone trap type and height in forecasting populations of R. clavatus in soybean fields using pheromone. The most effective pheromone trap type and height in forecasting populations of R. clavatus were fish trap and 60 cm above ground. Ratio of R. clavatus adults female and male in soybean field was 1.5 to 1 and Piezodorus hybneri was also attracted to the aggregation pheromone trap of R. clavatus. Attractiveness of two stink bug species caught on synthesis pheromone of R. clavatus was surveyed with imported production and synthesized production. Imported pheromone attracted only adult of R. clavatus, but synthesized pheromone attracted both adult of R. clavatus and P. hybneri. Change of population of R. clavatus was observed using pheromone trap and sweeping method in soybean field. Adults of R. clavatus occurred from early August and the population reached its peak in early September when pheromone trap was used. In case of sweeping method, its fluctuation pattern was similar to that of pheromone trap.

• Korean journal of applied entomology
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• v.51 no.4
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• pp.405-410
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• 2012

This study is conducted to develop a new method of early occurrence monitoring for Aculops lycopersici Massee (Acari: Eriophyidae), a major pest in tomato. A. lycopersici causes damage to plants such as curling of leaflet edges, followed by leaflet bronzing. As feeding continues by the mites, the plant takes on a russeted, wilted appearance, eventually culminating in leaflet desiccation and finally plant death. Fruit damages in tomato were shown when the density of mites was very high. Also, A. lycopersici caused more damage to unripe fruits than ripe fruits. The time taken to detect A. lycopersici on green label sticker was 7.0 seconds, the shortest. Blue, orange and white label stickers took 17.1, 19.8 and 12.3 seconds respectively. The permeable microscope with side illumination was useful in observing A. lycopersici on label stickers. A. lycopersici began to occur in late-April and the density of the mites increased rapidly after mid-May. The density peaked in mid to late-June, and decreased after late-June. A. lycopersici was observed on lower stems 20 days after the release of mites and observed on higher stems 60 days after. The peaked densities were observed on stems 40 and 60 days after and on leaf 80 days after. The label sticker is enough to monitor early occurrence of A. lycopersici in tomato cultivation facilities.