• Title/Summary/Keyword: 밤바구미

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Measurement and Comparison of Morphology of Developmental Stages of Chestnut Weevil, Curculio sikkimensis(Coleoptera: Curculionidae) (밤바구미 (Curculio sikkimensis)의 발육단계별 형태측정 및 비교)

  • Kim, Young-Jae;Moon, Sang-Rae;Yoon, Chang-Mann;Kim, Gil-Hah
    • Korean journal of applied entomology
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    • v.49 no.1
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    • pp.11-16
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    • 2010
  • Measurements were made on morphology of each developmental stages of the chestnut weevil, Curculio sikkimensis, reared in the laboratory and field from 2003 to 2006. The size of egg was 0.8${\pm}$0.03 mm. The escaping larvae were measured, in average, as 98 mg in body weight, 10.65 and 3.99 mm in body length and width, and 1.70 mm in head width. Pupal size of female and male was 7.01 and 6.53 mm, respectively. The fresh weight (0.343 g), body length (7.76 mm) and width (3.38 mm), and head width (1.60 mm) of female adults were significantly bigger than those (0.268 g, 7.14 mm, 3.01 mm and 1.37 mm, respectively) of male adults. Proboscis length (6.53 mm) and antennal length (5.47 mm) of female was also significantly longer than those (3.56 and 4.63 mm, respectively) of male. The larvae of C. sikkimensis overwintered for 1~3 years and their body weight, body length, and body width were decreased. The ratio between proboscis length and body length, the basipodite position attached to the proboscis, and shape of the sex organ on the abdominal end could be used to discriminate sexes.

Selection of Insecticides for Controlling Chestnut Curculio (Curculio sikkimensis) (밤바구미 방제를 위한 살충제의 탐색)

  • Kim, Young-Jae;Han, Jong-Been;Seo, Dong-Kyu;Kim, Yeon-Tae;Park, Byeong-Kyu;Choi, Kwang-Sik;Kim, Chul-Su;Shin, Sang-Chul;Lee, Sang-Gil;Kim, Gil-Hah
    • The Korean Journal of Pesticide Science
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    • v.8 no.4
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    • pp.347-352
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    • 2004
  • Susceptibility of Curculio sikkimensis adults to 39 commercial insecticides were evaluated by body dipping method, Among them sixteen insecticides of chlorpyrifos, fenitrothion, fiponil, phenthoate, benfuracarb, thiodicaib, carbosulfan, bifenthrin, cypermethrin, $\lambda$-cyhalothrin, deltamethrin, clothianidin, acetamiprid+diflubenzuron, etofenpox+diazinon, esfenvalerate+fenitrothion and furathiocarb +diflubenzuron showed 100% mortality. Insecticides with over 80% residual effect at 1 day after treatment were phenthoate, benfuracarb and thiodicarb (95.0, 82.5, and 85.0%, respectively). However, after that, it was dropped rapidly. Other insecticides showed low residual effect. In the control efficacy test on C. sikkimensis, insecticides with over 90% control values at 1 day after treatment were phenthoate, thiodicarb, fipronil, acetamiprid+bifenthrin and furathiocarb+diflubenzuron. However, all insecticides from 2 days after treatment were over 90%.

Effects of Light Trap Structure and Lamp Type on the Attraction of Chestnut Pests in an Orchard (밤재배원에서 유살등 구조 및 램프의 종류가 해충 유인력에 미치는 영향)

  • Kim, Young-Jae;Kim, Hyun Kyung;Kim, Gil-Hah
    • Korean journal of applied entomology
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    • v.53 no.3
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    • pp.217-223
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    • 2014
  • The effects of insect capture were studied in a chestnut orchard using three different light traps (A, B, and C type) with various lamps. The mercury lamp trap captured 125 insect species, out of which 115 were chestnut pests. The B and C type light traps, comprising a Dulux-EL white lamp, were examined for their capturing ability. The type B trap attracted Coleopteran insects (83%), while type C captured Lepidopteran insects (73%). The mercury clarity lamp along with the type B light trap was most effective in attracting Curculio sikkimensis adults (mean, 9.8 adults), while the Dulux-EL lamp captured the highest number of Dichocrocis punctiferalis adults (mean, 10.2 adults) using the type C light trap. These results suggest that selection of the appropriate types of light traps and lamps based on the target pest species is critical in ensuring effective and eco-friendly control of the pest population.

Study on Fumigation Method of Harvested Fresh Chestnuts Produced in Korea (한국산 생밤의 훈증소독방법에 관한 연구)

  • Hah Jae-Kyu;Lee Cheon-Koo;Yu Ki-Yull
    • Korean journal of applied entomology
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    • v.21 no.3 s.52
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    • pp.133-137
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    • 1982
  • An experiment was conducted to find out the proper and effective fumigation method for harvested fresh chestnuts produced in Korea. Fumigation with phosphine, causing damages on chestnuts by rapid corruption or change in color on pericarp, did not completely kill chestnut curculio and nut fruit tortrix larvae in harvested fresh chestnuts regardless of long exposure of chestnuts to phosphine. Any damages not being appeared by fumigant, fumigation with methyl bromide at $40g/m^3$ for 4 hours at $21^{\circ}C$ would retain the low control against inclusion of any chestnut pests tested. Though fumigation with methyl bromide at $50g/m^3$ for 24hours was effective against any larvae of chestnut insects control, they caused serious damages by making the flesh surface of harvested fresh chests dark or dense brown. However, fumigation with methyl bromide at $50g/m^3$ for 4 hours at $21^{\circ}C$ resulted in complete kill of larvae of Curculio dentipes and Carpocapsa splendana in harvested fresh chestnuts with no significant damages on the treated fruits.

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Comparative Morphology of the Weevil Larvae of the Superfamily Curculionoidea in Korea(Coleoptera) (I) (한국산 바구미류 유충의 비교형태에 관한 연구(I))

  • 이찬용
    • Korean journal of applied entomology
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    • v.31 no.2
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    • pp.153-169
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    • 1992
  • This study was made to describe the morphological features of larvae of Pissodes nitidus, Pissodes obscurus, Shirahoshizo insidiosus, Curculio sikkimensis, Cryptorhynchus lapathi of Curculionidae and Apoderus jekeli, Byctiscus puberulus regalis, Euops splendidus, Rhynchites heros of Attelabidae and Siplinus gigas of Rhynchophoridae.

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Management of Chestnut Insect Pests by Friendly Environmental Controls in Korea (친환경적 방법에 의한 밤 종실해충의 관리)

  • Lee, Chong-Kyu;Kim, Jong-Kab;Goo, Gawn-Hyo;Kang, Sung-Mee;Yun, Seok-Rak;Seo, Dong-Jin
    • Journal of Korean Society of Forest Science
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    • v.97 no.1
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    • pp.30-34
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    • 2008
  • This study was conducted to develop environmental techniques to reduce chestnut insect pests. The study sites were selected in intensive chestnut orchards of Jinju city, Gyeongnam province. In early and middleripening cultivars of chestnut tree, the damage of chestnut fruits by Dichocrocis punctiferalis was significantly lower in wromstop than other treatment such as Capture-machine, Nemacatch and Naphthalene (p<0.05), while there was no significant difference among treatments in late-ripening cultivars. The control effect of D. punctiferalis showed the highest in wormstop treanment with 90.68% and 80.58% in early and middle-ripening cultivars. The control effects for Curculio sikkimensis in late-ripening cultivars of chestnut tree was 80.58% in Nemacatch and 77.90% in Wormstop treatment.

Classification of the Subfamily Curculioninae from Korea (Coleoptera : Curculionidae) (한국산 밤바구미아과의 분류)

  • 권용정;이승모
    • Korean journal of applied entomology
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    • v.29 no.2
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    • pp.83-103
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    • 1990
  • Korean Curculioninae are revised herein, and totally 28 species belonging to 5 genra are treated. Among them, 13 species with 1 subgenus and 2 genera are new to science, and 7 species with 1 genus are newly recorded from Korea. Keys are given for all the taxa respectively, and host plants and domestic localities for each species ar provided.

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Recognition and Using Status of Carbon Disulfide (CS2) as Fumigant for Controlling Chestnut Weevil, Curculio sikkimensis among Chestnut Farmers (일부 밤 농사 및 가공 종사자의 밤바구미 훈증제 이황화탄소 사용실태 및 인식)

  • Lee, Moo-Sik;Kim, Eun-Young;Lee, Jae-Lim;Sohn, Gi-Yeon
    • Journal of agricultural medicine and community health
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    • v.41 no.2
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    • pp.63-74
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    • 2016
  • Objectives: We surveyed the awareness and current status of using fumigant carbon disulfide for exterminate Curculio sikkimensis among chestnut farmers in Chungnam Province to suggest directions for health education and public relations. Methods: We designed questionnaires to evaluate recognition of fumigant carbon disulfide. We conducted a questionnaire survey to assess recognition and recognition level of fumigant carbon disulfide by the study variables. Results: The recognition status for fumigant carbon disulfide was 74.5%, but the recognition level was low (know well 27.5%). The path of recognition was 45.1% and 15.7% for neighbor and rural technology center, respectively. The recognition status for warning label of fumigant carbon disulfide was 52.9%. Recognition for warning label of fumigant carbon disulfide was tended to increase with high educational attainment, bigger owning land area. Recognition on the content of warning label were 29.4%, 27.5%, 21.6%, and 21.6% for inflammability, toxicity, hazard, and explosiveness, respectively. Using personal protection equipment was tended to increase with the high status of awareness on fumigant carbon disulfide. Conclusions: Health education programs for using fumigant carbon disulfide are needed for chestnut farmers. In addition, publicity information activities about prevention and protection of carbon disulfide poisoning are needed for high risk farmers.

Anatomical observation of the mouthpart of Cyllorhynchites ursulus and comparison with other species (한국산 도토리거위벌레(Cyllorhynchites ursulus) 구기의 해부학적 관찰과 유사종과의 큰턱 비교 연구)

  • Kim, Ji Young;Kim, Yung Kun;Lee, Eunok
    • Korean Journal of Environmental Biology
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    • v.37 no.3
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    • pp.343-350
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    • 2019
  • Cyllorhynchites ursulus drills holes in acorn and cuts branches with mandibles. To understand this special behavior, we observed the mouthpart of this species using several microscope methods. The stereoscopic microscope used in this study shows that the adductor tendon is thicker than the abductor tendon which confirms that mandibles exert more force pulling inwards than pushing outwards. Also, the shape and position differences were observed using an optical microscope. We found differences of the shape, position, and movement of mandibles among C. ursulus, Curculio sikkimensis and Paracycnotrachelus longiceps by way of observation using SEM. The width of the adductor tendon and the abductor tendon of males of the C. ursulus species was 32.87 ㎛, and 53.83 ㎛, respectively. And, the width of females was 40.81 ㎛ and 75.55 ㎛, respectively. Based on a variety of observations and analyses, we found that the unusual behavior of C. ursulus is deeply related to the morphological features, and these features could be applied to biomimicry.

Pathogenicity of Korean Entomopathogenic Nematodes (Steinermematidae and Heterorhabditidae) against Local Agricultural and Forest Insect Pests (한국산 곤충병원성 선충 (Steinernematidae와 Heterorhabditidae)의 지역농림해충에 대한 병원성)

  • 추호렬;이상명;정부근;박영도;김형환
    • Korean journal of applied entomology
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    • v.34 no.4
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    • pp.314-320
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    • 1995
  • Pathogenicity of Korean entomopathogenic nematodes against local insect pests was different depending on strains or target-insect pests. Mortalities of diamondback moth, Plutella xylostella larvae were 51.8%, 77.8%, 96.3% or 100% in Hanrim Steinernema sp. and 50.0%, 74.1%, 96.3% or 98.1% in Hamyang Heterorhabditis sp. on filter paper when larvae were exposed to 3, 6, 12, or 24 nematodes per larva. Mortalities of them on kale leaves at the same concentration were 44.4%, 63.0%, 76.1%, or 94.5% in Hanrim Steinernema sp. and 79.7%, 81.6%, 94.4%, or 100% in Hamyang Heterorhabditis sp., respectively. In field test, control value of Hanrim Steinernema sp. was 72.0% and that of Hamyang Heterorhabditis sp. was 84.1% in 14 days when 300,000 nematodes were sprayed to each plot ($13.27\m^2$). Although mortalities of rice stem borer, Chilo suppressalis larvae showed no difference at high concentration, Hamyang Heterorhabditis sp. (47.3~100%) was more effective than Hanrim Steinernema sp. (34.3~83.3%) at low concentration, 50~200 nematodes/ml. When chestnut curculio, Curculio sikkimensis larvae were treated with Sancheong Steinernema sp. and Hamyang Heterorhabditis sp., respectively. When pellucid zygaenid, Pryeria sinica larvae were exposed to nematodes, Pocheon Steinernema sp. was effective ranging from 96.7% to 100% but mortalities of them were 63.3~76.7% in Dongrae Steinernema sp..

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