• Title/Summary/Keyword: 과실 피해

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Studies on the Fruit-Piercing Moths in Korea(2) Host Distribution, Seasonal Occurence and Sugar Contents (과실 흡수나방에 관한 연구(2) 기주분포, 발생소장 및 당도)

  • Yoon Ju-Kyung;Kim Kwang-Soo
    • Korean journal of applied entomology
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    • v.15 no.2 s.27
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    • pp.95-100
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    • 1976
  • A distribution status of host plants for fruit-piercing moths was surveyed in Kocksung fruit growing area of Chonnam province during June to October, 1975. The results were summarized as follows; Main host plants of fruit·piercing larvae Smilax china L., Allizzia zulibrissim Dura, Cocculus trilobus Dc., Thalictrum aquilegifolium L., and Pterocarya rhoifolia Sieb & Zucc. Pterocarya rhoifolia Sieb & Zucc. were found to be distributed at mountain regions over 500m above sea level, while the other host plants were found to be distributed with in loom to 300m above sea level The moths was found from June 25th to Oct. 4th. Maximum emergence of the moths on plum an8 peach were about July 18th and on the grapes tree about August 31th. The moths collected from June 25th to Oct.4th were 17 spcies. Dermaleipa zuno Dalman $(35.7\%)$, Oraesia emaginata Fabriciul$(17.7\%)$, Oraesia excavata Butler $(12.9\%)$, Adrias tyramus amurensis Staduinger$(9.1\%)$, were collected much more than any other species; They accounted for approximately$70\%$ of total moths collected. In regards to the sugar contents of peach and plum, it was observed that the more the sugar concentrated, the more the fruits damaged. but the acid value of fruits had not shown any significant relationship with their attractants.

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Efficacy Test of Mating Disruptors Against Peach Fruit Moth, Grapholita molesta, using Polypropylene Dispenser Containing Ester Wax (에스테르 왁스가 함유된 폴리프로필렌 방출기 제조와 복숭아순나방 교미교란 효과 검정)

  • Yoon, Ji Young;Kim, Da Eun;Im, Yu Na;Lee, Ji Sung;Yang, Chang Yeol;Kim, Jong-Duk
    • Korean journal of applied entomology
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    • v.54 no.4
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    • pp.369-374
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    • 2015
  • Grapholita molesta (GM) has been considered as a major problem to apple and peach orchards. Mating disrupters have been applied to control the pest over the world as an Integrated Pest Management [IPM] tool. Various types of dispensers releasing mating disrupters have been developed with different formulation of wax, polyethylene tube and aerosol. In this study, the dispensers that were composed of ester waxes and polypropylene (PP) film were used as dispenser materials to analyze release pattern of GM pheromone compared with paraffin wax and polyethylene (PE) film. The release pattern in PP film group was consistent with time while PE film group irregular. Based on these results, Japan wax_PP film dispenser (Japan_PP) was manufactured and showed the mating disruption effect of 98% during 5months in peach orchard.

The Colonizing Routes of Aphis gossypii (Hemiptera: Aphididae) to Mandarine Citrus Trees Grown in a Non-heating Plastic-film House During the Early Season (무가온 시설재배 감귤에서 계절초기 목화진딧물 개체군의 정착경로에 관한 연구)

  • Kim, Tae Ok;Kwon, Soon Hwa;Park, Jeong Hoon;Oh, Sung Oh;Hyun, Seung Young;Kim, Doog-Soon
    • Korean journal of applied entomology
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    • v.54 no.3
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    • pp.247-255
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    • 2015
  • The cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae) infests citrus orchards, causing sooty mold damage to the fruits. This study was conducted to investigate the colonizing route of A. gossypii in citrus orchards in a non-heating plastic-film house during the early season. The overwintering eggs of the aphids are frequently found on summer shoots of the citrus trees. The eggs were mostly those of Aphis citricola, without any A. gossypii when hatched. The colonization of citrus trees by alate A. gossypii in non-heating plastic-film houses was mainly observed twice, with advanced flight in late April and delayed flight in late May. The delayed flight was synchronized with the timing of the emergence of alate A. gossypii from the fundatrix generation in the holocyclic life cycle. During advanced flight in closed citrus orchards, alate A. gossypii were caught in yellow water traps installed in the fields, and the populations were found to originate from the surviving populations of the anholocyclic life cycle. Consequently, we concluded that citrus tree colonization with A. gossypii occurred during the advanced flight of the anholocyclic and the delayed flight of the holocyclic life cycle.

Evaluation of Streptomyces padanus IA70-5 Strain to Control Hot Pepper Anthracnose (Colletotrichum acutatum) (고추 탄저병 (Colletotrichum acutatum) 방제를 위한 Streptomyces padanus IA70-5의 평가)

  • Chi, Tran Thi Phuong;Choi, Okhee;Kwak, Youn-Sig;Son, Daeyoung;Lee, Jeung Joo;Kim, Jinwoo
    • Journal of agriculture & life science
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    • v.46 no.3
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    • pp.37-45
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    • 2012
  • To select bacterial strains with antifungal activity against an anthracnose fungal disease causing damage severely on hot pepper, previous isolates obtained from plant root samples were screened. Among 457 isolates, IA70-5 isolate was finally selected and identified as Streptomyces padanus based on 16S rDNA sequence analysis. Strain IA70-5 is non-pigmenteous, non-mobile, and filamentous. S. padanus IA70-5 inhibited effectively the mycelium growth, spore germination, and appressorium formation of Colletotrichum acutatum in vitro. The results of this study demonstrated that IA70-5 strain, especially applied on fruit of hot pepper, decreased disease incidence 90% for pre-inoculation before pathogen treatment. Taken together, S. padanus IA70-5 strain is a promising biological control agent to control of a major fungal pepper disease, anthracnose.

Breeding of a Mid Maturing Watermelon Cultivar, 'Hangyeol' with Resistance to Anthracnose Race 3 (수박 탄저병 Race 3 저항성 중생종 수박 '한결' 육성)

  • Huh, Yun-Chan;Hong, Kue-Hyon;Ko, Ho-Cheol;Park, Kyoung-Sub;Park, Dong-Kum;Lee, Joong-Sup;Cho, Myeoung-Cheoul;Lee, Sok-Young;Ko, Kwan-Dal;Lee, Woo-Moon
    • Korean Journal of Breeding Science
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    • v.42 no.6
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    • pp.695-698
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    • 2010
  • The incidence of Anthracnose causing severe damage to the foliage and fruit in watermelon has increased in some major watermelon producing areas in Korea. To develop anthracnose resistant line, 'AU-Producer' having resistant gene to anthracnose was selected from germplasm and crossed with high quality line '920533'. Following the initial cross, backrossing and disease screening were performed to select resistant lines that produced high yields with excellent quality fruit. As a results of these procedure, a mid maturing watermelon line, 'Hangyeol' with resistance to anthracnose (Colletotrichum orbiculare) race 1 and 3 was developed at the National Institute of Horticultural and Herbal Science, Rural Development Administration (RDA). It has red flesh and commonly produces fruit with clear stripes on skin between 5.3 to 10.1 kg. Average soluble solid contents are ranged from 9.8 to 11.8$^{\circ}$Bx. The yield and quality of 'Hangyeol' is comparable to or better than those harvested from the popular commercial cultivars. The achievement of this experiment could contribute to provide the resistant parents in an anthracnose resistance breeding program in watermelon.

A Review of the Legal Responsibility of Dog Owners regarding Dog Bite Accidents - Focused on a Comparison with American Dog Bite Legislation - (개물림 사고에 대한 소유자의 법적 책임에 관한 소고 - 미국의 개물림 법제와의 비교를 중심으로 -)

  • Baek, Kyoung-Hee;Shim, Young-Joo
    • Journal of Legislation Research
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    • no.54
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    • pp.261-301
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    • 2018
  • In South Korea, the number of households that rear companion animal has been gradually increasing. With the rise of household dogs, the frequency of humans that are being bitten by another's dog has also increased. This type of accident, which is known as a dog bite accident throughout the United States. It can cause significant physical and emotional damage to the victims and may result in grave injuries or death. Dog bite accidents are serious public health problems and can cause immeasurable hidden costs to the community. South Korea has enacted several laws to address dog bite accidents, which include the Animal Protection Act, the Civil Act, and the Criminal Act. On March 20, 2018, the Animal Protection Act was amended to reinforce the current legislation. These amendments addressed the duty of care owed by a companion dog owner to society members and the punishment that an owner of a fierce dog would face in the event of a dog bite accident. Conversely, several states in the United States have enacted a single law that regulates the details regarding dog bite accidents, such as the type of dog or animal, the type of damage, the scope of compensation for damages, and the scope of recognition of liabilities. This paper is intended to review the present situation of dog bite legislation in several states in the United States, which have a variety of laws that address dog bite accidents, and compare them with current South Korean dog bite legislation. Through this research, this paper will discuss what issues may exist in South Korean's current dog bite laws, analyze the responsibility of companion dog owners, and provide solutions to any issues that are discovered.

Field Application Techniques of Simultaneous Mating Disruptor Against Grapholita molesta and G. dimorpha (복숭아순나방과 복숭아순나방붙이에 대한 동시 교미교란제의 현장 적용 기술)

  • Cho, Jum-Rae;Park, Chang-Gyu;Park, Il-Kweon;Kim, Yonggyun
    • Korean journal of applied entomology
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    • v.57 no.3
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    • pp.209-220
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    • 2018
  • Mating disruption (MD) has been widely used to effectively control Grapholita molesta in apple orchards. A simultaneous mating disruption (SMD) techniques have been developed to control both G. molesta and G. dimorpha. This study was performed to determine the practical parameters to apply the SMD technique to field conditions. To determine the application amount of SMD lures, a dispenser containing 10 mg pheromone was placed at different numbers of trees in an orchard. Application at every other tree (= one dispenser per two trees) was relatively safe to expect effective MD efficiency in both wax and polyethylene (PE) formulations. One time application at the end of March was enough to maintain a year round MD efficacy against both species. A fence treatment using food trap was applied to prevent any immigratory mated females from nearby untreated regions. To enhance the food trap by adding host-derived secondary compounds, terpinyl acetate (TA) was screened to be effective to attract females of Grapholita molesta among six compounds contained in apple fruit extracts. Among different TA concentrations, 0.05% TA treatment was the most effective to attract the adults. A mixture of TA and sugar was effective to attract and kill females and called FAKT (female attract-to-kill techniques). FAKT was treated at approximately 6 m interval at the edge of the apple orchards. The females trapped by the FAKT included mated females possessing vitellogenic oocytes. SMD supplemented with FAKT maintained the high MD efficacy and significantly suppressed leaf damage induced by the two insect pests compared to control or single SMD treatment.

Legal Study for the KSLV launching - Products & Third Party Liability - (KSLV발사에 따른 제작 및 제3자피해 책임에 대한 우주법적 소고)

  • Shin, Sung-Hwan
    • The Korean Journal of Air & Space Law and Policy
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    • v.21 no.1
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    • pp.169-189
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    • 2006
  • In 2007, KSLV(Korea Small Launching Vehicle) that we made at Goheung National Space Center is going to launch and promotes of our space exploration systematically and 'Space Exploration Promotion Act' was enter into force. 'Space Exploration Promotion Act' article 3, section 1, as is prescribing "Korean government keeps the space treaties contracted with other countries and international organizations and pursues after peaceful uses of outer space." The representative international treaties are Outer Space Treaty (1967) and Liability Convention (1972) etc. In Liability convention article 2, "A launching State shall be absolutely liable to pay compensation for damage caused by its space object on the surface of the earth or to aircraft in flight. The important content of the art. 2 is the responsible entity is the 'State' not the 'Company'. According by Korean Space Exploration Act art. 14, person who launches space objects according to art. 8 and art. 11 must bear the liability for damages owing to space accidents of the space objects. Could Korean government apply the Products Liability Act which is enter into force from July 1, 2002 to space launching person? And what is the contact type between Korea Aerospace Research Institute(KARl) and Russia manufacturer. Is that a Co-Development contract or Licence Product contract? And there is no exemption clause to waive the Russia manufacturer's liability which we could find it from other similar contract condition. If there is no exemption clause to the Russia manufacturer, could we apply the Korean Products Liability Act to Russia one? The most important legal point is whether we could apply the Korean Products Liability Act to the main component company. According by the art. 17 of the contract between KARl and the company, KARl already apply the Products Liability Act to the main component company. For reference, we need to examine the Appalachian Insurance co. v. McDonnell Douglas case, this case is that long distance electricity communication satellite of Western Union Telegraph company possessions fails on track entry. In Western Union's insurance company supplied to Western Union with insurance of $ 105 millions, which has the satellite regard as entirely damage. Five insurance companies -Appalachian insurance company, Commonwealth insurance company, Industrial Indemnity, Mutual Marine Office, Northbrook Excess & Surplus insurance company- went to court against McDonnell Douglases, Morton Thiokol and Hitco company to inquire for fault and strict liability of product. By the Appalachian Insurance co. v. McDonnell Douglas case, KARl should waiver the main component's product liability burden. And we could study the possibility of the adapt 'Government Contractor Defense' theory to the main component company.

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Effects of Depth and Duration of Water-logging on Growth and Yield at Transplanting and Flowering Stage in Pepper (Capsicum annuum L.) (고추(Capsicum annuum L.)의 이식기(移植期) 및 개화기(開化期) 침수처리(浸水處理) 따른 생육반응(生育反應))

  • Guh, Ja-Ock;Kuk, Yong-In
    • Korean Journal of Environmental Agriculture
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    • v.15 no.4
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    • pp.425-433
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    • 1996
  • Pepper plants were water-logged at 0, 5, 10 and 15 cm at transplanting and flowering stages under the condition of greenhouse. Treatment of water-logging times were 6, 12, 24, 48 and 120 hours. The results obtained are summarized as follows. At the transplanting stage, plant height, number of leaves, shoot and root fresh weight decreased by water-logging at 0cm for 24 hours and at 5cm or more for 6 hours. Number of fallen leaf was negligible by 12 hours water-logging at 0cm, however, its increased by more increased the water-logging depth and time. Diffusion resistance and chlorophyll content of leaf, and root activity decreased at more than 24 hours of water-logging regardless of the water-logging depth treatments. Photosynthesis and respiration rate diminished by increased the water-logging depth at 120 hours water-logging treatment. Plant diseases, mainly anthracnose(Colletotrichum) occurred in proportion to increase the depth and time of water-logging. It was not possible to control the diseases by fungicides. At the treatment of foliar spray of urea for recovery to water-logging damage, the efficiency was not found on plant height, but the number of leaves. Number of fruit and weight of fruit per plant showed no difference from no water-logging to 24 hours water-logging at 0cm, but its decreased that more than 24 hours water-logging at 0cm and more than 6 hours water-logging at 5cm or more. The averaged weight of a fruit on survival plants increased by more hours and deeper water-logging. There was positive correlation between all the investigated characteristics of growth and yield. There was, however, negative correlation between the characteristics and diffusion resistance of leaf stomata. The correlation between number of fallen leaf and averaged weight of a fruit was not significant. At flowering stage, number of fruit and weight of fruit per plant showed a similar tendency to no water-logging and by 12 hours water-logging at 0cm and 5cm, but significantly decreased at more than 24 hours water-logging from 0 to 5cm, and more than 6 hours water-logging at 10cm or more. The averaged weight of a fruit on survival plants increased by more hours and deeper water-logging except for 120 hours water-logging at all water depths.

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A Study on Effect of B/L's Exemption Clauses Relating to the Governing Law of English Law (영국법의 준거법과 관련한 선하증권 면책약관의 효력에 관한 연구)

  • Han, Nak-Hyun;Jung, Jun-Sik
    • Journal of Korea Port Economic Association
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    • v.22 no.4
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    • pp.1-17
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    • 2006
  • In the Bill of Lading of The Irbenskiy Proliv is not subject to the Hague-Visby Rules in accordance with paragraphs (A) and/or (E) of cl.1 or to the Hague Rules in accordance with paragraphs (B) and/or (D) of cl.1. The Irbenskiy Proliv is very rare case that is effective to exempt the carrier as literal words of Bill of Lading. The action concerns cargoes of perishable goods shipped from Brazil to Japan, under Bills of Lading each of which contained an extensive carrier's exemption clause. A preliminary issue was ordered to be determined on the question whether c1.4 is effective to exempt the ralliers from any potential liability for the claims in this case. The court held that there is no reason to reject c1.4 as part of each of the contracts contained in or evidenced by the bills of lading; and it protects the carrier where damage to the goods shipped results from such causes. It is therefore effective to exempt the carriers from any potential liability for those claims.

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