• Korean journal of applied entomology
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• v.58 no.3
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• pp.189-196
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• 2019

While the darkling beetle, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae) is considered a pest of stored products, it does not pose a significant economic threat to this industry. The grains these beetles feeding on are often already damaged. However, the beetle is now being treated as the foremost premise pest in the poultry industry in many countries of the world. Recently, the darkling beetle has also infested in broiler chicken houses of Korea. The problems caused by this pest destroy the insulate facilities of poultry houses, reduce chick's overall performance, transmit pathogenic organisms, and have been leading to substantial economic losses for poultry producers. Therefore, we conducted surveys on the status of infestation and damage of this pest in broiler chicken houses. Because there is no simple one step process that will completely eliminate darkling beetle populations from broiler facilities, we would like to outline further studies on the proper control measures.

• Korean journal of applied entomology
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• v.61 no.1
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• pp.51-62
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• 2022

Numerous insect pests threaten the Korean orchard industry through feeding on various tissues of fruit trees. Generally, the control of economically important orchard pests is based on the use of chemical insecticides. Owing to growing concerns regarding the environmental and human health effects of insecticides, environment-friendly pest control strategies are urgently needed. Pheromones of orchard pests could lead to an environmentally safe control system based on mating disruption or mass trapping. This review summarizes the functions and compounds of known pheromones from 51 orchard pests in Korea. The pheromones identified to date from 14 species in the families Miridae, Aphididae, Diaspididae, Pseudococcidae, Rutelidae, Cecidomyiidae, and Eurytomidae and 26 species in the order Lepidoptera are female-produced sex pheromones that attract only males. In contrast, all known examples for 11 species in the families Alydidae, Pentatomidae, Thripidae and Cerambycidae are male-produced aggregation pheromones that attract both sexes. Research on pheromones in new pests, kairomones in key orchard pests, mating disruption dispensers to generate prolonged release of the pheromones, and trap design and trap location for mass trapping will be required for the expanded use of pheromones and other semiochemicals in orchard pest management in the future.

• 축산식품과학과 산업
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• v.9 no.1
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• pp.44-57
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• 2020

• Journal of Sericultural and Entomological Science
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• v.36 no.2
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• pp.182-185
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• 1994

전통적인 고급 의류로서 견이 사용되기 시작한 이래, 섬유의 여왕으로서 실크는 지속적인 사랑을 받아왔다. 그러나 최근 실크에 가까운 합성섬유가 만들어져 견섬유의 위치를 위협하고 있는 현실이다. 이에 섬유재료로서 실크가 갖는 경쟁력은 어려운 위치에 처하게 되었고, 보다 경쟁력을 높이기 위해서는 실크제품의 제조공정에서 필연적으로 발생하는 부산물의 활용에 관심이 고조되기에 이르렀다. 부산물의 활용 분야로서는 화장용품, 의료용, 식품용, 산업용 등으로 그 응용분야가 광범위하게 확대되었고 지금도 속속 새로운 분야에의 응용이 시도되고 있다. 앞으로의 연구에서 견의 기능성 발현의 기구가 보다 자세히 규명된다면 실크분야에서 완전히 새로운 장이 열릴 것으로 기대된다. 그렇게 된다면 지금의 부산물 이용만으로는 수요를 감당할 수 없을지도 모를 것이다. 그때에는 직접 누에의 체내에서 견을 채취하게 될 것이다. 그렇게 된다면 과거의 풍요로운 뽕나무 밭도 되살아 나고 잠사 견업의 활성화에도 연관된다.

• Journal of Sericultural and Entomological Science
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• no.12
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• pp.56-57
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• 1970

1. 잠업은 식물적 동물적 가공적부문이 결합 혼합된 산업이므로 유통단계 및 유통기능이 다변족이며 타산업과 현격하게 다름. 2. 일반적 농산물의 경우도 그러하지만 잠견은 6월의 춘잠과 8월의 하추잠시기의 집중적으로 출회되므로서 상품의 수급탄력성은 거의 없고 따라서 정부의 수집조작이 요망됨 3. 잠견의 거래제도는 일정시의 특약공동판매제와 대동소이한 것으로 유통기능의 경직비를 그대로 존속하고 있음. 즉 잠견공급전량이 농협의 잠사공판매에서 공판되고 도지사가 제사공장별구견지역을 정하는 바에 따라 제사공장이 인수함. 4 유통마진은 타 상품과 같이 시장경제적거래가 성립되어 있지 않기 때문에 전혀 나타나지 않는 것 같지만 사실에 있어서는 검사제도소송심의 과정에서 상당한 마진이 존재함. 5 일시에 잠견이 공결됨으로 해서 검사제도합리화 〈기계검사〉, 건견장설치 등 사회간점자본시설 이 크게 요청됨.

• 축산식품과학과 산업
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• v.10 no.1
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• pp.31-43
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• 2021

• 축산식품과학과 산업
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• v.13 no.1
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• pp.81-92
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• 2024

• Food Science and Preservation
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• v.13 no.4
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• pp.513-518
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• 2006

Insect resources have been widely recognized that seven millions of insects exhibit it own biological activity by whole body or its metabolic intermediates. In order to investigate antioxidant activity and compare the cyclooxygenase-2 promoter activity from insect extract, we tested in vitro antioxidant assays and cyclooxygenase-2 promoter assay in Coccinella septempunctata Linne and Harmonia axyridis extracts have the anti-oxidant and cyclooxygenase-2 inhibition activities, we examined the anti-oxidant assays including DPPH, FRAP and linoleic acid, ana inhibition of cyclooxygenase-2 expression using a cyclooxygenase-2 promoter-inserted stable cell line. We found that Harmonia axyridis Pallas extract had potentials to anti-oxidant activity and inhibited about 25% of cyclooxygenase-2 transcription activity. These findings indicate that Coccinella septempunctata Linne and Harmonia axyridis Pallas extracts could be an useful insect resource for agrobiotechnological purposes.

• Korean journal of applied entomology
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• v.60 no.2
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• pp.215-220
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• 2021

To establish the systematic biological control system for various insect pests in strawberry under plastic houses, we were investigated the biological traits of lesser strawberry aphid, Chaetosiphon minus (Forbes), as a target pest. The lesser strawberry aphid is adapted to low temperatures while examining the availability of and selecting useful natural enemies. The development, survivorship and reproduction of lesser strawberry aphid were evaluated at four constant temperatures (10, 15, 20, and 25℃). The developmental periods of the nymphal stages ranged from 41.7 d at 10℃ to 9.8 d at 25℃. The developmental threshold temperature and degree day of nymphal stages are 5.5℃ and 185 DD. The reproduction rate (R₀) was higher at 20℃ (30.16) than at 25℃ (22.38). The 50 % survival rate and maximum longevity of adult females were 31 d and 59 d at 20℃, and 25 d and 36 d at 25℃, respectively. The average progeny per female was 35 at 20℃, and 26 at 25℃. We confirmed that compared to other strawberry aphids under plastic houses, the lesser strawberry aphid is more adapted to lower temperatures. It is, therefore, necessary to commercialize natural enemies such as syrphid flies with high activity at low temperatures.

• Korean journal of applied entomology
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• v.58 no.1
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• pp.69-76
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• 2019

This study was evaluated to increase the production efficiency of Gryllus bimaculatus De Geer, which are recently increasing attention as industrial insects in Korea. In this study, the hatching rate and larval period were investigated along with temperature and humidity, as well as the survival rate and ovipositional temperatures along with rearing density. The optimum relative humidity for hatching was highest at 90%, which shows the hatching rate of 90%. The highest hatching rate was 98.3% at $20^{\circ}C$. The hatching period was shortest at $35^{\circ}C$ incubation, which shows 7.1 days in average. The survival rate at 3,000-20,000 individuals in the breeding container was 34-18% after rearing for 35 days. In the effect test of feeding vegetables, the survival rate was 1.8 times and the biomass weight 2.5 times higher than that of normal individuals respectively. The number of laying eggs by temperature was highest at $25^{\circ}C$, which shows 1,710 eggs after reading for 30 days.