• Title/Summary/Keyword: Lasioderma serricorne F.

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Ovipositional Response of Two Strains of the Cigarette Beetle, Lasioderma serricorne F., to Tobacco Varieties, Leaf Grades and Leaf Thickness (원료 잎담배의 품종, 등급 및 잎두께에 따른 궐련벌레(Lasioderma serricorne F.)의 산란반응)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.18 no.2
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    • pp.113-119
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    • 1996
  • The ovipositional responses of two strains of the cigarette beetle, Lasioderma serricorne F., to thickness, of air- and flue-cured leaf tobacco were investigated. Eggs laid by the strains reared with wheatflour (95%) + yeast (5%) in the laboratory for several years were not different between air - and flue-cured tobacco leaves. There were negative correlations between grades of cured tobacco and ovipositional response, and the regression equation was Y(ovipositional response) : 58.22 - 10.15X(leaf grade). Adults of strains reared on tobacco leaves laid 161.00±80.29 eggs on the first grade of thick flue-cured leaves, and 7.67 ± 5.51 on the second grade of thin air-cured leaves. There was difference in ovipositional responses among different grades within variety, but significant differences were noted between thick and thin tobacco leaves. Key words : ovipositional response, cigarette beetle, Lasiodema sewicome F., tobacco.

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Karyotype Analysis of Tobacco Moth, Ephestia elutezza H. (Lepidoptera : Pyralidae) and Cigarette Beetle, Lasioderma serricorne F. (Coleoptera : Anobiidae) (다색알락명나방(Ephestia elutella H.)과 궐련벌레(Lasioderma serricorne F.)의 핵형 분석)

  • Chae, Soon-Yong;Kim, Sang-Seock;Chang, Young-Dock
    • Journal of the Korean Society of Tobacco Science
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    • v.18 no.1
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    • pp.30-38
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    • 1996
  • Meiotic metaphase chromosomes of the testis of two storage insects, tobacco moth (Ephestia elutella H.) and cigarette beetle (Lasioderma serricorne F.) were examined to study their karyotypes. The number of haploid chromosomes of the tobacco moth was 31 and the karyotype was characterized by 29 metacentric and 2 submetacentric chromosomes. The metaphase chromosome length of tobacco moth ranged ca. 1.44-2.11${\mu}{\textrm}{m}$ and the average length was 1, 78${\mu}{\textrm}{m}$. The number of haploid chromosomes of the cigarette beetle at metaphase was 10 and the karyotype was characterized by 8 metacentric and 2 submetacentric chromosomes. The range of metaphase chromosome length of the cigarette beetle was ca. 1.79- 2.39${\mu}{\textrm}{m}$ and the average length 2.09${\mu}{\textrm}{m}$.

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Ecological Studies on the Cigarette Beetle, Lasioderma serricorne F. (Coleoptera: Anobiidae) Parasitic Hymenoptera, Lariophagus ditinguendus F., (Hymenoptera: pteromalidae) in Tobacco Storage Warehouse (원료담배 저장창고에서의 궐련벌레, Lasioderma serricorne F.(Coleoptera: Anobiidae),에 기생하는 바구미살이금좀벌, Lariophagus distinguendus F. (Hymenoptera : Pteromalidae),의 발생 생태에 관한 연구)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.21 no.2
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    • pp.188-194
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    • 1999
  • Cigarette beetle, Lasioderma serricorne F.(Coleoptera : Anobiidae), is one of the most serious insect pest of stored leaf tobacco in Korea. The first adults of their ecto-parasitic hymenoptera, Lariophagus ditinguendus F. (Hymenoptera: Pteromalidae), were emerged in late June in 1992, in early May in 1993 and 1995, in late May in 1994 and 1996. This parasitic hymenoptera had two peak times of adults emergence. The first one was from late June to early July and the 2nd peak time in the Suwon area occurred from late August to early September in 1993, 1994 and 1996, and late September in 1992 and 1995.

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Population Dynamics of Cigarette Beetle, Lasioderma serricorne F., at Different Residential Types in Korea (우리나라 주거형태에 따른 궐련벌레(Lasioderma serricorne F.) 발생 상황)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.26 no.1
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    • pp.13-16
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    • 2004
  • This study was designed to investigate population dynamics of cigarette beetle, Lasioderma serricorne F.(Coleoptera, Anobiidae), at differential house types in Korea. In hot season, July 24 to August 24, cigarette beetle adults were captured by sex-pheromon-trap at all house types which were located in Wonjoo, Shintanjin and Suwon area. Cigarette beetle adults were captured only at apartments where located at same area by sex-pheromon-trap during overwintering period in Korea. No relation was detected between a limit of the distribution of cigarette beetle, L. serricorne F. and the distance from tobacco storage warehouses to houses in Korea.

Studies on the Effectiveness of Gamma Ray Irradiation for Control of Cigarette Beetle, Lasioderma serricorne F. (Coleoptera: Anobiide) (감마선을 이용한 궐련벌레(Lasioderma serricorne F) 방제에 관한 연구)

  • 오명희;정규화
    • Korean journal of applied entomology
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    • v.33 no.4
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    • pp.263-269
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    • 1994
  • A method to control the cigarette beetle. Losioderma serricorne F, m cigarettes by using gamma ray irradiation was evaluated When all stages of cigarette beetle were placed in gelatin capsules and irradiated wlth gamma ray. no eggs survived, but mortalities of pupae, larvae and adults exposed to above 0.8 kGy of gamma ray were only from 0 to 30%. Similar results were also obtained in the control efficacy of the beetle when seuqal kinds ot currently produced ngarettes containing m gelatin capsules were inadhated with gamma ray The cigarette beetle adults and larvae surviving gamma ray inadiatlon were reared on artificial d~etsto show that there were no reproduc. tions was observed in the second generation. The survival periods for each growth stage became shoter with increase gamma ray dosage. The fouirh instar larvae had the longest sulvlvai periods No sign~ficant changes of cigarette flavor and taste were noticed alter gamma ray inadiation. The cigarette packet, metal fotl for packet and cigarette paper by the inad~atlon were not discolored by irradiation.

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Effects of Tobacco Leaves and Artificial Food on the Growth of Cigarette Beetle, Lasioderma serricorne F. (Coeoptera : Anobiidae) (담배잎과 인공먹이가 궐련벌레 (Lasioderma serricorne F.) 발육에 미치는 영향)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.20 no.1
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    • pp.33-39
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    • 1998
  • Survival, growth and reproduction of the cigarette beetle, Lasiodema sewicome F., were studied on flue-cured (NC82), air-cured (Br.21), aromatic (Izmir) tobacco and artificial diet (wheat feed 95% + yeast 5%). Cigarette beetle adults occurred from first generation in the flue-cured and aromatic tobacco, but no adults emerged in air-cured tobacco after the 2nd generations. The head capsule widths of larvae of the cigarette beetles L sewicome F.1 reared on different diets at 2$0^{\circ}C$, $25^{\circ}C$ and 3$0^{\circ}C$ were measured. The head capsule development was slower at 2$0^{\circ}C$ on the same diets than $25^{\circ}C$ and 3$0^{\circ}C$, and slower in the flue-cured and aromatic tobacco than the artificial diet at 2$0^{\circ}C$ and 2S$^{\circ}C$, At $25^{\circ}C$ the larval head capsule developed more rapidly in the aromatic tobacco than the flue-cured tobacco. However, no larval head development was noticed in the air-cured tobacco. The correlation between population densities of cigarette beetle,1 sewicome F., and sugar content of tobacco leaves was positive, but negative in nicotine contents. The regression between densities and sugar content was Y : 22.79 X + 57.29 (r=0.891**), and between nicotine content was Y : -141.31X + 321.40(r=-0.917**).

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Ecological characteristics of cigarette beetle, Lasioderma serricorne F., on several leaf litters (몇가지 낙엽에서의 궐련벌레, Lasioderma serricorne F.(Coleoptera : Anobiidae), 생태적 특성에 관한 연구)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.22 no.1
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    • pp.51-57
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    • 2000
  • The feeding preference of cigarette beetles, Lasioderma serricorne F., was tested using various leaf litters. The number of the trapped L. serricome was 45.25$\pm$10.44 at flue-cured leaf tobacco, Nicotiana tabacum L., 23.50$\pm$6.0 at chinese juniper, Juniperus chinensis L., 1l.75$\pm$4.99 at oak, Qqercus acutissiuma C., and 1l.50$\pm$2.52 at rice-straw, (Oryza. sativa L.). The response of oviposition was 93.20$\pm$26.22 at flue-cured leaf tobacco, 53.60$\pm$11.82 at chinese juniper, 48.20$\pm$20.90 at oriental arborvitae, Thuja orientalis L., 31.80$\pm$18.10 at cherry-tree, Prunus serrulata var. spontanea M., and 29.40$\pm$13.7 at rice-straw. However, the oviposition was respectively low at gingko, Ginkgo biloba L.,(5.40$\pm$2.97), turf grass, Zoysia japonica S., (5.20$\pm$13.7), and oak (3.00$\pm$l.41). The augmentation was maximum at chinese juniper (27.33$\pm$19.44 of emerged adults) followed by Magnolia obovata (8.50$\pm$9.33). Fifty percent of the tested species leaf litters including cherry-tree did not show any augmentation. The adult activities after hibernation were primarily found in May and June at Kwangju and Suwon, and in April at Chungju. The field activity of L. serricome at Suwon was mostly lower than that at other places, except in August at Chungju. The first appearance of L. serricome was observed earlier at Chungju and Kwangju than at Suwon, and the frequency of insect appearance was high in July, August, and September. L. serricome could hibernate by feeding on many kinds of plant leaf litters and it's population could be maintained in the open field in Korea.

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The Feeding Preference of Cigarette Beetle, Lasioderma serricorne F., on Cured Tobacco Leaves. (궐련벌레의 원료 잎담배 식이 선호성에 관한 연구)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.16 no.2
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    • pp.122-127
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    • 1994
  • Feeding preference of cigarette beetle, Lasioderma sewicorne F., on cured tobacco leaves was investigated to obtain basic information on ecological management of the insect pest in tobacco storage warehouses. About 3, 000-4, 000 adults of the insect were released in a warehouse in which groud tobacco leaves were placed on the bottom and at 3m above the floor level, and numbers of insects attracted were examined. There was no significant difference on feeding preference between the two tobacco varieties, flue-cured(NC82) and air-cured(Br3l) tobacco leaves. However, significant differences were noted in feeding preference between thick and thin leaves and among different quality grades within a tobacco variety. Feeding preferences of cigarette beetle between flue- and air- cured tobacco varieties showed significant differences on the lower position, though there were no differences on the 3m upper position. On the 3m upper position, feeding preferences were different between thick and thin leaves of tobacco varieties, and variety X thickness and variety X thickness equality grades showed statistically significant differences. Significantly higher feeding preference by cigarette beetle adults was observed for the food placed on the 3m upper than on the lower position. There were negative correlations between quality grades of cured tobacco leaves and feeding preference on the lower position, and the regression equation was Y(feeding preference)=4.050-0.683 X (degree).

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Effects of Tobacco Manufacturing Process on the Mortality of Cigarette Beetle, Lasioderma Serricorne Fo (Coleoptera : Anobiidae ) (몇가지 담배 제조공정에서의 권련벌레 (Lasioderma Serricorne Fo)충태별 살충효과)

  • 오명희
    • Journal of the Korean Society of Tobacco Science
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    • v.6 no.1
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    • pp.94-96
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    • 1984
  • The effects of redrying, steaming, toasting, and drying & cooling chamber in the tobacco manufacturing Process on the mortality of three stages of the cigarette beetle, Lasioderma serricorne F., 1.e. eggs, larvae, and adults, were examined. Mortality of the three stages the cigarette beetle in each process was 100%, respectively.

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Effect of the Establishment of Cigarette Beetle Population on the Quality of Stored Cnidium Rhizome and Angelica Radix at Room Temperature (상온보관에 따른 권연벌레의 번식이 한약재 천궁, 당귀의 품질에 미치는 영향)

  • Kim, Yong Il;Lee, Sang Won;Kim, Yae Jin;An, Tae Jin;Kim, Young Guk;Chang, Jae Ki;Kim, Jin Won
    • Korean Journal of Medicinal Crop Science
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    • v.25 no.4
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    • pp.224-230
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    • 2017
  • Background: The current regulations regarding the storage of medicinal herbs do not define the storage temperature; instead, but the only requirement is that the plastic bags used for storing the medicinal herbs should be tightly sealed during storage. The practice of storing medicinal herbs at room temperature ($28^{\circ}C$), causes many problems, including growth of insect pests on the stored medicinal herbs. Thus, it is necessary to understand the effect of insect pests on the quality of medicinal herbs stored at room temperature ($28^{\circ}C$) for the improving the relevant regulations. Methods and Results: Cnidium rhizome and Angelica radix were infested with Lasioderma serricorne F. adults and incubated at $28^{\circ}C$ for 2.5 and 5 months. The population of L. serricorne was established rapidly, and left many holes, cadavers, and feces on the stored medicinal herbs, thereby greatly damaging the product appearance and hygiene. In addition, active ingredients of the medicinal herbs were significantly decreased, probably reducing their medicinal quality as well. Conclusions: These results indicate that the current regulations are not sufficient to prevent the establishment of storage insect pests and guarantee the quality and hygiene of stored medicinal herbs. Therefore, it is necessary to devise proper storage protocols and upgrade the current relevant regulations to maintain the quality of medicinal herbs during storage.