• Korean journal of applied entomology
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• v.62 no.1
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• pp.49-56
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• 2023

We first report 4 unrecorded species belonging to genus Aleiodes Wesmael discovered in South Korea: A. lipwigi, A. guidaae, A. subemarginatus, A. caprinus. In this study, diagnosis, distribution, and illustration, DNA barcode sequence are provided for identification of these species.

• Korean journal of applied entomology
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• v.61 no.2
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• pp.307-311
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• 2022

The genus Areotetes van Achterberg & Li, 2013 (Hymenoptera: Braconidae: Opiinae), which is endoparasitoid of mining or infesting of fruit dipterous larvae, have been reported for the first time in China. Currently, four species of the genus Areotetes have been known from the province Hunan and Fujian, China. In this study the genus Areotetes with Areotetes carinuliferus van Achterberg & Li, 2013 is reported for the first time from Korea. Material studied in the present study were collected by sweeping in Mt Gongchi, Eochungdo, Province Jeonbuk, Korea. Herein, diagnosis of genus, description, distribution, and diagnostic illustration of A. carinuliferus are provided. In addition, DNA barcode data of the partial gene of mitochondrial cytochorome c oxidase subunit I (COI) are included.

• Korean journal of applied entomology
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• v.62 no.4
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• pp.365-369
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• 2023

The genus Bitomus Szepligeti, 1910 (Hymenoptera: Braconidae: Opiinae) is known to parasitize in mining flies (Diptera: Agromyzidae), of which four species are recorded in Korea. Bitomus was revised by Fischer (1987, 1994) and recently treated by Papp (1978, 1981) in Korea. Bitomus is distinguished from other genera by the immovably joined second-third or fourth metasomal tergites, forming a carapace. In this study, Bitomus indicus is recognized for the first time in Korea. This study provides a diagnosis, description, distribution, and diagnostic illustrations.

• The Korean Journal of Zoology
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• v.14 no.2
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• pp.85-86
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• 1971

Kim and Son (1969) reported an ichneumon-fly, Megarhyssa jezoensis Matsumura, as a parasite of Sirex nitobei Matsumura which is one walnut, Juglans sinensis Maximowicz but Sirex nitobei Matsumura was misdetected by them. The host of Megarhyssa jezoensis Matsumura is not Sirex nitobei Matsumura but Tremex apicalis Matsumura which was unrecorded in Korea up to the date. And the fact is added that Ibalia takachihoi Yasumatsu also attacks the same pest, Tremex apicalis Matsumura.

• Proceedings of the Korean Society of Organic Agriculture Conference
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• 2009.12a
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• pp.290-290
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• 2009

유기 배 과수원의 생물종 다양성을 조사한 결과, 월동 직후 유기배 과수원에서는 13종 503마리, 관행 과수원에서 11종 145마리의 토양 미소동물이 채집되었다. 채집된 종류는 거미, 지네, 노래기와 곤충들이다. 유기과수원에는 특히 응애와 거미가 많이 채집되었으며 특히 곤충 중에서 톡토기는 247마리로 관행에 비해 7배가 많이 채집되었다. 또한 생태지수인 종다양도가 관행 1.383에 비해 1.589로 더 높았다. 서식지별 분포를 보면 나무 바로 밑의 개체수와 종수가 더 많아 배나무 뿌리를 중심으로 생활하고 있음을 확인하였다. 여름철 토양동물의 분포는 달팽이, 지렁이를 비롯한 미소 동물들이 유기인증 과수원에는 24종 632마리, 관행에서는 15종 340마리가 채집되어 유기인증 농가에서 월등히 많은 토양동물이 살고 있었으며 종다양도역시 유기농가 2.021로 관행인 1.652보다 높았다. 청목(1985)의 자연도 평가 A그룹종은 환경저항성이 낮아 쉽게 소멸되는 그룹으로 애지네, 노래기 땅지네 등이 여기에 속하는데 유기농가에서 개체수들이 더 많이 채집되었다. 추락트랩을 이용한 조사에서 딱정벌레 중 점박이먼지벌레가 관행 과수원에서 월등히 높았으며 유기농가에서는 큰넓적송장벌레가 채집되어 이들 종이 지표종으로 선발될 수 있을 것으로 보인다. 또한 거미류 중에 수풀오소리거미가 많이 채집되었으며 채찍늑대거미, 꼬마게거미, 점게거미등은 유기농가에서만 채집되어 추후 이들 종이 지표종으로 선발될 가능성이 있었다. 말레이트랩에서는 고치벌과 맵시벌 종류가 많이 채집되었고 파리류에서는 초파리가 많았으며 털검정파리는 유기인증 농가에서 만이 채집되었다. 유아등을 이용한 야간 곤충류를 채집한 결과 유기농가에서 16종 201마리, 관행 9종 42마리가 채집되어 야간에 활동하는 곤충류 역시 유기농가가 많았다. 추락트랩과 말레이트랩모두 유기인증 농가에서 종다양도가 관행보다 높았으며 유아등 채집에서도 마찬가지 결과를 보여 유기배 과수원이 토양 뿐 아니라 배를 중심으로 생활하는 모든 동물들의 종 다양성이 우수함을 알 수 있었다.

• The Korean Journal of Pesticide Science
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• v.12 no.3
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• pp.283-290
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• 2008

Baculoviruses have been used to control some serious lepidopteran pests. However, their narrow target insect spectrum and slow efficacy are main limitations to be used in various applications. This study introduces a technique to overcome these limitations by inhibiting insect immune defence to enhance the viral pathogenicity. Polydnaviruses are an insect DNA virus group and symbiotic to some ichneumonid and braconid endoparasitoids. Cotesia plutellae bracovirus (CpBV) is a braconid polydnavirus and encodes several immunosuppressive genes. We selected seven CpBV genes and recombined them to wild type Autographa California multiple nucleopolyhedrovirus (AcNPV). A bioassay of these seven recombinants indicated that most recombinants had similar or superior efficacy to wild type AcNPV against beet armyworm, Spodoptera exigua, and diamondback moth, Plutella xylostella. Recombinant AcNPV with CpBV-ELP was the most potent in terms of lethal time by shortening more than 2 days compared to wild type AcNPV. This recombinant was further proved in its dose-dependent pathogenicity and its efficacy by spray application on S. exigua infesting cabbage cultivated in pots. We discussed the efficacy of CpBV-ELP recombinant AcNPV in terms of suppressing antiviral activity of target insects.

• Korean journal of applied entomology
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• v.19 no.4 s.45
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• pp.243-248
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• 1980

Experiments were conducted to study on bionomics and control of cutworms; Agrotis tokionis, A. ipsilon, A. fucosa in Suweon, 1978-1979. A. ipsilon and A. fucosa had two or three generations and A. tokionis had one generation a year. A large number of A. toikonis occured at the end of September, and the major peaks of the first generation of A. tokionis and A. fucosa were in mid-June, the second generation in mid-August, and the third generation was at the end of September. These cutworms laid many eggs on the lower surface of curved downward leaf of Chinese cabbage and the larvae later than 3rd instar began to cut the basal part of stem and then pulled into the soil. A parasite of A. tokionis, a braconid wasp, Meteorus rubens, and two unidentified Ichneumnid wasps were found. Mocap and Volaton gave effective control to the cutworms but Volaton should be applied not to contact with plant.

• Korean journal of applied entomology
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• v.45 no.3 s.144
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• pp.241-259
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• 2006

Polydnavirus is a mutualistic DNA virus found in some braconid and ichneumonid wasps. Its genome is integrated into host chromosome as a provirus. Its replication occurs at ovarian calyx epithelium during host pupal stage to form episomal viral particles. The viral particles are delivered into hemocoel of the parasitized insect along with eggs during wasp oviposition. Several polydnaviral genomes, which are isolated from the episomal virus particles, have been sequenced and exhibit some gene families with speculative physiological functions. This review presents the viral characteristics in terms of Its parasitic physiology. For developing new insect pest control tactics, it also discusses several application strategies exploiting the viral genome to manipulate insect physiology.

• Korean Journal of Agricultural Science
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• v.9 no.2
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• pp.519-539
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• 1982

An preliminary study was made with special references on the insect fauna of Mt. Gyeryong during the period from mid-May to mid-September 1981. The results were obtained as follows; 1. 673 species of insects within 156 families of 20 orders were identified and listed herewith. 2. The 16 species are first records from Korea : Phaneraptera nigro-antennata (Tettigoniidae : Orthop.), Phraraortes kumamotoensis(Phasmidae : Phasm.), Nesogaster lewisi (Nesogasteridae : Dermap), Polymerus palustris(Miridae : Hemip.), Agrosteomela indica (Chrysomelidae:Col.), Monochimus sparsutus (Cermbicidae : Col.), Oberthiiria ialcigera (Bombycidae: Lep.), Alcis albiiera (Geometridae : Lep.), Proplepsis diazama (G eometridae : Lep.) Pandemis cinnamomeana (Tortricidae : Lep.), Hypenodes squalida (Noctuidae : Lep.), Hypolimnas bolina (Nymphalidae : Lep.), Ctenophora nohirae (Tipulidae: Dip.), Ortalotrypeta isshiki (Trypetidaedae : Dip.), Trypeta artemisicola (Trypetidae : Dip.), Ichneumom 8-guttatus ( Ichneumonidae : Hymenop.). 3. We could find a considerable number of Oriental fauna species, Lepismachilis nipponica, Nezara antennata, Parapolybia varia, Anthophora zonata, Parnara guttata, Byasa alcinous, Eurema laeta, Pieris canidia, Eizera maha, Kaniska canace, Danaus sita including two newly recorded species, Monochimus sparstus and Hypolimnas bolina.

• The Korean Journal of Zoology
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• v.12 no.1
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• pp.29-33
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• 1969

An ichneumon-fly, Megarhyssa jezoensis Matsumura, was found as a parasite of Sirex nitobei Matsumura, a pest insect of the walnut, Juglans sinensis Maximowicz, at Ye-San, Choong-Nam province, middle Korea. The life cycle of Megarhyssa jezoensis was as follows: 1. It occurred three times a year. The adults appear at the end of April to the middle of May (maximum on 5th May) after hibernation, at the beginning to the middle of July (maximum on 10 th July) in the first generatioin, and at the end of September to the end of October (maximum on 8 th October) in the second. 2. The larvae grew from the beginning of May to the end of June in the first generation, from the middle of July to the beginning of September in the second and from the beginning of October to the end of the year in the last. 3. The pupae developed from the end of June to the middle of July and from the end of August to the middle of September. 4. The adults oviposited their eggs on the surface of the host, the larvae in Sirex nitobei growing in the stem of the walnut, and the larvae hatched from the eggs were ectoparasiting the larvae of Sirex to grow and pupate. The parasite hibernated in the pupal stage but the adult which emerged at the early spring stayed in the hole of the walnut stem till the end of April.