• Korean journal of applied entomology
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• v.52 no.3
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• pp.227-237
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• 2013

The black soldier fly (BSF), Hermetia illucens, is a generalist detritivore that is usually exploited for recycling environmental wastes, including food remnants. These insects can also be used to produce antibiotics for medical applications. For this purpose, flies need to be mass-reared using an automatic rearing system that generates various sounds. Insects use sound as a means of communication for mating or warning against predators. Thus, extrinsic sounds may interrupt the normal physiological processes of insects. In this study, we analyzed the physiological changes due to various sound treatments at $25^{\circ}C$ and 8:16 h (L:D) photoperiod. At 95 dB, larvae were exposed to different sound frequencies (0-5,000 Hz). The treated larvae were adversely affected by the high-frequency sounds and showed significant reduction in pupation and adult emergence. Different sound intensities (0-105 dB) at 5,000 Hz caused significant changes in the pupation and survival of the adults at 85 dB or above. Under a stress sound condition (5,000 Hz, 95 dB), the BSF larvae exhibited aberrations in the expression of genes related to the immune system and digestion. These results indicate that high-frequency sound treatments at or above 85 dB act as a stress sound to BSF development.

• Journal of Sericultural and Entomological Science
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• v.4
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• pp.9-25
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• 1965

작잠의 원산지는 중국이며, 이것을 산업화한 것도 중국이다. 기타 인도 미얀마 일본 등 동남아제국에서도 작잠업에 종사하고 있으며, 기중 인도에서는 상당한 수량이 생산되어 자급외에 수출까지 한다고 한다. 중국에서는 태고시대(주, 한시대)부터 의료로서 이용되어 왔으며, 원, 명시대를 거쳐 청대에 와서는 완전한 산업으로서 발전하여 각지에서 작잠을 원료로 한 견직물이 생산되었으며, 기중에서도 산동지방이 주산지로서 유명하여 다량의 산동주를 생산하였다. 기후 만주지방에 보급되어 현재에는 남만주지방이 세계적 산견지이며 안동현이 작잠사 생산의 중심지로 되어 있다. (중략)

• Journal of Sericultural and Entomological Science
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• v.18 no.1
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• pp.41-69
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• 1976

우리나라의 잠업은 1962년부터 시작된 3차에 걸친 증산계획의 추진에 따라서 비약적인 발전을 이룩하여 이제는 수출산업으로서 국가경제상 중요한 위치를 차지하게 되었을 뿐만 아니라 농가의 소득증대사업의 중요한 종목으로 우리나라 농업에서 차지하는 비중이 매우 크게 되었다. 그러나 지금까지의 이러한 발전은 주로 뽕밭 면적의 증식이라는 양적인 면에서 이룩되었고 질적인 면에서는 아직도 미흡한 점이 적지 아니하여 그 생산수준이 매우 낮은 실정에 있다. (중략)

• Journal of Sericultural and Entomological Science
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• v.21 no.2
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• pp.23-26
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• 1979

우리 나라의 잠사업은 1960연대 경제개발초기단계에서 공업화와 농업발전을 위하여 큰 몫을 담당하였다. 총수출액이 겨우 1억불에 달했던 1964년 생사수출이 6.1%를 점하였고 수출액이 10억불에 달한 1971년에도 생사 및 견직물 수출이 7.4%를 차지함으로서 외화소득에 큰 공헌을 하였다. 양잠과 제사는 노동집약적인 산업이므로 잠재실업자가 많았든 당시에는 농촌지역의 고용창출과 소득향상에 뚜렷한 성과를 걷우었다. 또 양잠은 전국 어디에서나 가능하며 특히 산간오지에도 주지한 정부지원시책으로 많이 보급하여 중요한 현금소득원이 됨으로서 소득분배의 균형화에도 크게 공헌하였다. (중략)

• Journal of Sericultural and Entomological Science
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• v.21 no.2
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• pp.26-30
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• 1979

우리나라의 잠사업은 1960년대초부터 외화획득을 위한 전략산업으로서 급진적 성장을 이룩하여 1965년에는 생사수출이 총농산물 수출액의 44%를 점유한 때도 있었다. 1970년대 초까지만 해도 국제적 여건의 변동에도 불구하고 우리나라의 잠사업부문은 \circled1 농가의 현금소득 기회의 증대 \circled2공업화초기의 외화습득수단 \circled3 계촌유휴노동력의 고용증대 \circled4 유휴국토 이용율의 증대 \circled5농촌공업화의 촉진등 그 역할은 지대하였다. (중략)

• Journal of Sericultural and Entomological Science
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• v.21 no.2
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• pp.36-44
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• 1979

5.16 군사정부의 탄생과 함께 적지 적산주의 권농정책에 힘입어 오늘날 크게 발전을 보게된 한국의 양잠업은 사실인즉 이조중엽까지만 하여도 전국 방방곡곡에 크게 번성하였던 민족산업의 하나이었다. 그러나 이조말 서정이 혼탁하면서 강요되기 시작한 가혹한 공납행위와 정상배에 의한 수탈행위의 혹독함에 견디다 못한 생산농민은 뽕나무를 "병민지초"라 부르는 일방, 나무뿌리에 몰래 독즙을 주입하여 자연고사케 함으로써 관으로부터 양잠농을 패업한데 대한 직접적인 질분을 피하면서 가혹한 수탈대상으로부터 가까스로 탈출에 성공할 수 있었다. 그리하여 천혜의 양잠적지가 상전벽해로 되버린 쓰라린 역사를 다시 거슬러 극복하고 1960연대에 이르러 번영의 잠업농으로 재구축하여 놓은 것이다. (중략)

• Korean journal of applied entomology
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• v.59 no.4
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• pp.451-454
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• 2020

Sericulture is a main insect industry in Sangju (Kyungpook, Korea). This study reports an occurrence of a viral disease in the sericulture farms in 2020. More than 20% silkworm larvae (Bombyx mori) suffered diarrhea and melted tissues with pathogenic lethality at 4th or 5th instars. PCR diagnosis showed a positive response against B. mori nucleopolyhedrosis virus (BmNPV) infection. Tissue extract of the infected larvae was applied to healthy larvae by a leaf-dipping method and exhibited the same viral symptoms. The viral extract was used to be overlaid on Sf9 cells. The infected Sf9 cells showed polyhedra in the cytoplasm. These results indicate that the silkworm larvae reared in the sericulture farms in Sangju were infected with BmNPV.

• The Korean Journal of Pesticide Science
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• v.14 no.1
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• pp.54-64
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• 2010

Effects of thirteen essential oils (anise oil, clove oil, marigold, mustard oil, neem oil, quassia, quilaja, rosemary oil, rotenone, tea tree extract, thyme oil, wintergreen oil, and yucca) and caffeine on typical industrial insect, silkworm (Bombyx mori) and two entomopathogenic nematodes, Steinernema carpocapsae GSN-1 strain (Sc) and Heterorhabditis sp. Gyeongsan strain (Hg) were investigated in the laboratory. When 1,000 ppm of each essential oils was treated, neem oil showed the highest insecticidal activity against silkworm. Mortality of silkworm fed on neem oil treated mulberry leaf was 55.3 and 100% 5 and 10 days after treatment, respectively. The silkworm fed on neem oil treated mulberry leaf did not make cocoon and pupa. Weight of cocoon and pupa was low in rotenone treatment showing 0.27 g and 1.01 g, respectively. Mustard oil had the highest nematicidal activity against entomopathogenic nematodes. 20 ppm of mustard oil resulted in 69.0% and 100% mortality of Sc and Hg 3 days after treatment, but 4% and 36% at 5 ppm in X-plate, respectively. Mortality of baited Galleria mellonella larva by Sc was not different from control at the concentration of 100 ppm of mustard oil while 30% lower in Hg in sand barrier. Mean numbers of established infective juveniles of Hg in Galleria larva were lower than Sc in sand barrier. Survival rate of Sc was similar to control at the concentration of <200 ppm of mustard oil in sand barrier.

• Korean journal of applied entomology
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• v.62 no.4
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• pp.345-346
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• 2023

Natural Enemy in First (NEF) method is an ecological engineering application technology for natural enemies and was applied to strawberry in a smart farm-type greenhouse to evaluate its effect on the density of thrips and aphids. The control group was treated with pesticide and compared with the NEF treatment group, in which Orius minutus and Portulaca sp. were used as a natural enemy and habitats for thrips and aphids. The density of pests in the NEF group was effectively managed and similar to that in the control group.

• KSBB Journal
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• v.13 no.6
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• pp.631-637
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• 1998

The theoretical research of olfaction began about a hundred years ago and the electrophysiological expermental techniques have been used for the olfaction research from 1950's. However, olfaction has not been studied so much as other senses. Recently interest in the offaction mereases for its industrial applications. We descenbe the companson of vertibrate and insect olfactory organs, smell perception mechanism, olfactory signaing transduction, and industnal applications f olfactory system, it is expected that the vanous ongeing researches on the olfactory system will contribute to sensor and scent industnes.