• Title/Summary/Keyword: 벼물바구미

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벼물바구미 얼마나 발생했나?

  • 신원교
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.11 no.1 s.94
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    • pp.65-75
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    • 1990
  • ''벼물바구미가 국내에 침입할 가능성은 수년전부터 예견되어 검역, 방역 및 연구분야에서 이를 주시하여 왔었다. 드디어 1998년 7월 2일 국내에서 발생이 최초로 확인되어 많은 사람들의 관심을 끌었고 이와 관련된 분야의 전문가들에게 새로운 일거리를 하나 더 제공함과 동시에 문외한들에게도 벼물바구미라는 해충을 인식시킬 수 있을 만큼 화제의 대상이 되었다. 이제는 지난 2년 동안의 발생과 방제 상황을 종합 분석해 보고 이 해충에 대처하는데 있어 전시적인 것은 지향하고 효율적인 방법을 추구하여 생력방제가 되도록 해야할 것이다. 이 글은 벼물바구미에 관하여 국내 최초발견 전후의 발생상황, 경남 농촌진흥원에서 수행한 연구결과, 예찰자료, 일본 아이찌현 농업시험장 연구보고서 발췌요약한 것이다.''

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Influence of Rice Water Weevil (Lissorhoptrus oryzophilus) Damage on Growth and Grain Quality in Rice (벼물바구미 피해정도가 벼 생육 및 미질에 미치는 영향)

  • 박경배;손길만
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.35 no.4
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    • pp.370-374
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    • 1990
  • A field experiment was conducted to investigate the influence of water weevil damage on growth and grain guality in rice. Plant height was shortened, number of tillers per hill decreased and maximum tillering stage delayed in damaged field by rice water weevil. Heading date was delayed by 1-2days, culm lenght shortened, panicle lengthened, number of panicles decreaced, number of panicles per spikelet increased, ripened grain ratio decreased in damaged field by rice water weevil. Yield per 10a was decreased 4-22% in damaged field compared with that in undamaged field by rice water weevil, yield loss in late transplanting (June 23) was larger than that in early transplanting (May 20). Imperfect kerml rice, especially green kernel rice, was increased in damaged field by rice water weevil.

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Seasonal Change in Rice water Weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera : Curculionidae), in Rice Field (중부지방에 있어서 벼물바구미의 년중 발생 경과)

  • 김용현;고현관;이기열;최용문;임경섭
    • Korean journal of applied entomology
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    • v.29 no.3
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    • pp.176-179
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    • 1990
  • Seasonal occurrence in each stages of rice water weevil, Lissorhoptrus oryzophilus Kuschel, was studied in paddy field transplanted on May 25, Siehung, 1989. The peak of overwintered adults was late May an that of newly emerged adults was early August. Oviposition occurred in late May and late June and its peak was observed on early June. Larvae were observed from early June to early August and pupation occurred from early July to late August. The first adults of newly emerged rice water weevil was observed on early July and its emergence peak was early August.

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Monitoring on Insecticide resistance of major insect pests in paddy field (주요 벼 해충에 대한 약제저항성 모니터링)

  • Lee, Si-Woo;Choi, Byeong-Ryeol;Park, Hyung-Man;Yoo, Jai-Ki
    • The Korean Journal of Pesticide Science
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    • v.9 no.4
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    • pp.365-373
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    • 2005
  • This study was carried out for looking into the status of susceptibility of pest insects to insecticides. Each insect Brown planthopper(BPH), Green leaf hopper(GLH), Smaller brown plant hopper(SBPH), Rice water weevil(RWW), were captured at various areas where the host crops were being cultivated and the susceptibility level of each pest insect was investigated. The susceptibility of each pest insect varied by insect species and areas where they were caught. BPHs kept higher level of susceptibility comparing to susceptible reference strain except to most of tested insecticides except imidacloprid (Resistance ratio was 68). The susceptibilities of GLH and SBPH to most of insecticides for their control did not developed markedly since 1976 except fipronil and imidacloprid which is widely used for WRR control. The insecticides used for control of WRR were very effective even at the concentration of one fourth of recommending concentration, but in 2000 suwon strain of WRR showed markedly reduction of susceptibility to carbofuran.

Feeding Plants of Rice Water Weevil (벼물바구미의 가해식물)

  • 김용헌;임경섭
    • Korean journal of applied entomology
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    • v.31 no.2
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    • pp.139-143
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    • 1992
  • Feeding plants of rice water weevil(RWW) adult and larvae were observed. Thirteen families including 104 species were found as host plants of RWW adult, and 74 species of them were newly identified as its host. Thmedia triandra var. japonica, Luzula capitata, Agropyron tsukushiense var. ransiens, and Zoysiama crostachya were most favorable hosts of adult RWW. Host plants for larvae were 9 species of weeds including Cperus nipponicus, Eleccharis kuroguwa, Sagittaria trifolia, and Claviceps purpurea in the rice paddy fields.

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