• 제목/요약/키워드: Bean bug

검색결과 43건 처리시간 0.036초

Feeding Preference, Nymphal Development Time, Bodyweight Increase, and Survival Rate of the Bean Bug, Riptortus clavatus (Thurnberg) (Hemiptera: Alydidae), on Soybean Varieties

  • Choi, Man-Young;Lee, Geon-Hwi;Paik, Chae-Hoon;Seo, Hong-Yul;Oh, Young-Jin;Kim, Du-Ho;Kim, Jae-Duk
    • 한국응용곤충학회지
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    • 제44권4호
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    • pp.287-292
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    • 2005
  • 톱다리개미허리노린재의 선호도가 가장 낮은 콩 품종은 시험에 이용된 25품종 중 광안콩, 남해콩, 서남콩, 소록콩, 안평콩 등 5품종이었다 그 다음으로 선호도가 낮은 품종은 풍산나물콩 등 7품종 이었으며, 명주나물콩과 은하콩은 톱다리개미허리노린재의 선호도가 비교적 높은 품종으로 3령약충기 일일발육량이 각각 14.9 mg과 13.9 mg으로 나타났다. 이에 반해 풍산나물콩에서는 일일발육량이 10.1 mg으로 나타났으며, 약충의 발육기간도 명주나물콩과 은하콩에 비해 3일 정도 긴 $24.5{\pm}2.1$ 2.1일이었고, 생존율은 명주나물콩과 은하콩에 비해 약간 낮은 83%로 나타났다. 생존율과 선호성 일일발육량 등을 비교해보면 풍산나물콩은 톱다리개미허리노린재에 대해 비선호성에 따른 저항성을 갖고 있는 것으로 보인다.

Elucidation of Cause of Cotyledon Black-Decay of Soybean Sprout by Bean Bug, Riptortus clavatus

  • Lee, Jung-Han;Han, Ki-Soo;Kim, Dong-Kil;Kang, Jin-Ho;Kim, Hee-Kyu
    • 한국작물학회지
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    • 제53권3호
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    • pp.303-307
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    • 2008
  • Cotyledon Black Decay (CBD) on soybean sprout mimics the black spot due to microbial infection. CBD, not visible or predictable at seedlot state, for some reason, shows up exclusively on cotyledon of soybean sprout during sprouting process. Such an incidence rate fluctuated from 0.8 to 19.5% over three years from 2004. We suspected some pod-infecting anthracnose fungi and/or pod-blight pathogen, or pod-sucking bean bug, one of the major pests of soybean, might have involved, of which we ruled out fungal pathogen because it was preventable through heat treatment, a proven method for seedlot disinfestation. The healthy seeds artificially fed by bean bug for one to seven days were sprouted, and 6 to 41% of the soybean sprout revealed the CBD mimic to those occurred in soybean sprout from previous commercial seedlot screening experiments. This finding is the first report to confirm that bean bug damage to pod at $R_8$ stage is directly responsible for the CBD, which did not concur with any other deleterious effects on sprouting such as reduction in hypocotyls elongation and rooting except unsightly sprout quality. However, earlier feeding either at green pod or greenish yellow pod stage ($R_6$ -early $R_7$ stage) resulted in rather severe damages, which strikingly reduced hypocotyls growth to about one forth to about two third, as well as the reduction in rates of seed germination.

VTS를 이용한 두류종실에 대한 노린재류의 선호성 평가 (Preference evaluation of stink bugs to leguminous seeds by video tracking system)

  • 배순도;김현주;윤영남
    • 농업과학연구
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    • 제39권4호
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    • pp.483-489
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    • 2012
  • Preference of stink bugs to various leguminous seeds was evaluated by using VTS (Video Tracking System) in laboratory. Major soybean stink bugs such as bean bug, Riptortus pedestris (Fabricius), one-banded stink bug, Piezodorus hybneri (Gmelin), eastern green stink bug, Nezara antennata (Scott), and sole bug, Dolycoris baccarum (L.) were significantly most attracted to Cheongjakong, a soybean variety, baited fish-net trap, followed by soybean varieties Ilpumgeomjeongkong and Taekwangkong, a peanut variety Daekwangdangkong, a kidney bean variety Gangnangkong, and a adzuki bean variety Jungwonpat, respectively in a soybean field. VTS observation in laboratory showed that R. pedestris and D. baccarum had significantly higher frequency of visit on Cheongjakong, followed by Ilpumgeomjeongkong. However, P. hybneri, N. antennata and Halyomorpha halys (Stal) had significantly higher number of visits on Cheongjakong, Seonnogkong and Jinpumkong, followed by Ilpumgeomjeongkong. The sojourned time of stink bugs, however, was significantly longer on Cheongjakong regardless of species of the bugs. Accordingly, Cheongjakong was evaluated as the most preferred soybean seed by fish-net trap and VTS. Thus, VTS is found to be an effective means to evaluate the food preference of stink bugs.

친환경농자재를 이용한 톱다리개미허리노린재의 친환경적 방제 (Environmentally-friendly control of Riptortus pedestris (Hemiptera: Alydidae) by environmental friendly agricultural materials)

  • 권혜리;김세희;박민우;조신혁;신효섭;조현숙;서미자;유용만;윤영남
    • 농업과학연구
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    • 제38권3호
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    • pp.413-419
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    • 2011
  • Recently, the rate of cultivation of such as hairy vetch was increased as a way of reducing the current soil problem. However, the occurrence of insect pest such as bean bugs, Riptortus pedestris, were increased in the field of green manure crops and their injuries to hairy vetch were observed. While minimizing insecticide use for the environmental friendly agriculture, the control of the bean bug can be utilized environmental friendly agricultural materials (EFAMs) in the green manure crop fields. The control effects of some EFAMs and most of chemical insecticides to the bean bug were significantly high. As a result of direct spray of EFAM that contained sophora extract or neem extract, the control effects of six EFAMs were higher than 70% at 120 hours after treatments. Among them, three EFAMs were showed over 90% of control effects. On the other hand, most of chemical insecticides were showed 100% of control effect against the bean bug at 48 hours after treatment. As mortality effects of EFAMs were sloely observed until 120h after treatment, we must use selected EFAMs at the beginnibgs of occurrence and entrance in the field of green manure for effective control of bean bugs.

먹이 첨가에 의한 톱다리개미허리노린재 집합페로몬 트랩의 유인력 증진 (Increased Attractiveness of the Aggregation Pheromone Trap of Bean Bug, Riptortus clavatus)

  • 허완;박정규
    • 한국응용곤충학회지
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    • 제45권1호
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    • pp.87-90
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    • 2006
  • 톱다리개미허리노린재(Riptortus clavatus)의 집합페로몬 트랩에 먹이(건조 대두 + 건조 땅콩 + 물)를 첨가함으로써 트랩의 유인력을 증가시킬 수 있는지를 수반트랩과 원형트랩을 사용하여 조사하였다. 수반트랩의 경우, 페로몬+먹이를 달아준 트랩이 페로몬 만 달아준 트랩이나 무처리 트랩보다 더 많은 수의 암컷과 수컷을 유인하였다. 원통형트랩에서도 페로몬 + 먹이를 달아준 트랩이 더 많은 암수성충과 약충을 유인하는 경향이 있었지만 통계적 차이는 없었다. 페로몬 트랩에 먹이를 첨가하는 것이 트랩의 유인력을 증가시킬 수 있을 것으로 판단되지만 트랩형태와 유인력에 관한 앞으로의 연구가 요망된다.

톱다리개미허리노린재 집합페로몬의 분비변이에 관한 연구 (Variation in Aggregation Pheromone Secretion of Bean Bug, Riptortus clavatus)

  • 허혜순;장신애;박정규
    • 한국응용곤충학회지
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    • 제48권1호
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    • pp.73-79
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    • 2009
  • 톱다리개미허리노린재(Riptortus clavatus Thunberg) (Heteroptera: Alydidae)의 집합페로몬은 (E)-2-hexenyl (Z)-3-hexenoate (E2HZ3H), (E)-2-hexenyl (E)-2-hexenoate (E2HE2H) 및 tetradecyl isobutyrate (TI)의 세 성분으로 구성되어 있다. 성충의 나이, 교미여부, 채집시기, 체중, 하루 중 시간대에 따른 이들 성분의 분비변이를 조사하였다. 이 집합페로몬의 분비량은 교미여부와 체중 및 하루 중 시간에 따른 차이가 없었다. 그러나 우화 후 일수가 경과할수록 수컷의 집합페로몬 분비량이 많아졌으며, 4월부터 9월까지 채집된 수컷의 집합페로몬 검출량은 10월에 채집된 수컷의 검출량보다 높았으며, 11월과 12월에 채집된 수컷에서는 집합페로몬이 검출되지 않았다. 이러한 집합페로몬의 분비변이 양상을 톱다리개미허리노린재의 먹이이용 전략 및 휴면현상과 관련지어 고찰하였다.

Enhanced Thermotolerance of Entomopathogenic Beauveria bassiana and Metarhizium anisopliae JEF-isolates by Substrate Modification

  • Yu, Jeong Seon;Lee, Se Jin;Shin, Tae Young;Kim, Woo Jin;Kim, Jae Su
    • International Journal of Industrial Entomology and Biomaterials
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    • 제41권2호
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    • pp.28-35
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    • 2020
  • Entomopathogenic Beauveria bassiana and Metarhizium anisopliae are well-known biological control agents worldwide, and have high potential in industrialization. However, their thermo-susceptibility limits long-term storage under high temperature conditions and insecticidal activity after application in target pests. The virulences of M. anisopliae JEF-003 and JEF-004, and B. bassiana JEF-006 and JEF-007 against bean bug (Riptortus pedestris), and the thermotolerance of conidia produced on three kinds of grains, sorghum, millet and Italian millet as substrates for solid cultures were investigated. Of the three grains, Italian millet was the suitable grains in the production of thermotolerant conidia, and a significant relationship between conidial thermotolerance and the media was demonstrated. This work suggests that biological characteristics of entomopathogenic fungi are altered by culture media, and these results will be a chance to understand the factors in the media which make such changes.

망사시험관과 유리시험관에서 톱다리개미허리노린재의 약충발육, 성충수명 및 산란 비교 (Comparison of the Nymphal Development, Adult Longevity and Oviposition of the Bean Bug, Riptortus clavatus Thunberg (Hemiptera: Alydidae) in Fibrous Nylon and Glass-Tube)

  • 배순도;김현주;박정규;정진교
    • 한국응용곤충학회지
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    • 제43권4호
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    • pp.275-279
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    • 2004
  • 망사시험관 및 유리시험관에서 톱다리개미허리노린재의 약충발육, 성충수명 및 산란수를 비교하였다. 약충기간은 유리시험관(20일)보다 망사시험관(약 21일)에서 약 1일 길었는데, 이러한 차이는 주로 5령충의 발육기간에 기인되었다. 우화율은 유리시험관($56\%$)보다 망사시험관($64\%$)에서 $8\%$높았다. 성충수명은 유리시험관보다 망사시험관에서 암컷이 약 4.1배, 수컷이 약 6배 길었다. 산란전기간은 유리시험관보다 망사시험관에서 약 1일 길었으며, 산란수는 유리시험관보다 망사시험관에서 약 3.5배 많았다. 산란지속기간은 망사 시험관에서 약 30일, 유리시험관에서 약 8일 이었다. 따라서 톱다리개미허리 노린재의 발육특성을 정확하게 구명하기 위해선 공기유통이 원활한 망사시험관을 사용하는 것이 적합할 것으로 판단되었다.