• 제목/요약/키워드: Green peach aphid

검색결과 87건 처리시간 0.037초

연초포장에서 발생하는 복숭아혹진딧물(Myzus persicae Sulz.)의 Esterase 분류

  • 채순용;김상석;정성은;장영덕
    • 한국연초학회지
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    • 제21권1호
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    • pp.49-56
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    • 1999
  • Classification of esterase isozymes of the apterous green peach aphids (Myzus persicae Sulzer) collected in tobacco fields were investigated by the native polyacrylamide gel electrophoresis (PAGE). A total of twelve esterase bands were identified in adult apterous aphid, and the difference of enzyme band activity in the clones was observed at the first and second bands group. Esterases of green peach aphids reacted with specific substrate were more stained $\alpha$-naphthyl acetate than $\alpha$-naphthyl propionate, and $\alpha$-naphthyl acetate more than $\beta$-naphthyl acetate. Twelve esterases on the basis of inhibition by the three types of inhibitors (organophosphates: 2.5$\times$10$^{-3}$ M paraoxon, 4$\times$10$^{-3}$ M DFP; eserine sulfate : 2$\times$10$^{-3}$ M eserin; sulfhydryl reagents: 2$\times$10$^{-3}$ M p-HMB) were classified into three class, namely, cholinesterase (ChE) I, II, carboxylesterase (CE) and arylesterase (ArE), and these classes contained 3, 4, 3 and 2 isozymes, respectively.

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Cypermethrin과 Pirimicarb 저항성계통 복숭아혹잔딧물에 대한 살충제문의 연합독작용 (Joint Toxic Action of Insecticide Mixtures to the Cupermethrin-and Pirimicarb-Selected Strains of Green Peach Aphid(Myzus pericae Sulzer))

  • 안용준;김길하;최승윤
    • 한국응용곤충학회지
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    • 제28권1호
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    • pp.32-36
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    • 1989
  • Cypermethrin과 pirimicarb도태 저항성계통 복수아흑진딧물(Myzus persicae Sulzer)에 대한 acephate, cypermethrin, demeton-S-methyl, pirimicarb 상호 혼합시의 연합독작용을 검토한 결과는 다음과 같다. Cypermethrin 도태 저항성계통에 Cypermethrin+acephate, cypermethrin+demeton-S-methyl, cypermethrin_pirimicarb를 처리하였을 때, 혼합비에 따른 정도의 차이는 있었으나. 독립작용 또는 길항작용을 보였다. Pirimicarb 도태 저항성계통에 pirimicarb+acephate, pirimicarb+cypermethrin을 각각 8:2, 2:8 혼합처리하였을 때 최대의 협동결과를 보였으나, pirimicarb+demeton-S-methyl의 경웨는 혼합비에 관계없이 길항작용을 나타내었다.

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복숭아혹진딧물에서 발견된 국내 미기록 곤충병원성 곰팡이 Entomophthora planchoniana에 관한 보고 (Entomophthora planchoniana Cornu (Zygomycetes: Entomophthoraceae), the First Observed Pathogen of the Green Peach Aphid Myzus persicae in Korea)

  • 윤철식;성기호;이건형;박현수;이정운
    • 한국균학회지
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    • 제26권3호통권86호
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    • pp.403-406
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    • 1998
  • 국내 미기록 곤충병원성 곰팡이, Entomophthora planchoniana를 1998년 6월 2일 전북 군산 아욱 재배지의 복숭아혹진딧물에서 발견하였다. 이에 국내에서 처음으로 E. planchoniana를 보고하며, 형태적 특징을 기재한다. 또한 이 균의 가장 중요한 분류학적 특징은 Entomophthora속 곰팡이 중 진딧물에 기생하는 유일한 종이며, 1차포자는 $4{\sim}6$개의 핵을 지닌 종모양 이였으며 원형질로 감싸져 있었다.

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아까시아나무 모자익병에 관한 연구 (제 3 ) (Musaic Disease of Black Locust (Robina pseudo-acacia L.) (Part 3) Insect Vectors)

  • 김종진
    • 미생물학회지
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    • 제4권2호
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    • pp.19-21
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    • 1966
  • For the purpose of determining possibility of aphid-transmission of mosaic disease of black locust, cowpea aphid (Aphis medicagnis Koch) and green peach aphid (Myzus persicae Sulzer) were experimented using cowpea as test plant, and both proved to be the vectors. As for transmission threshold period of cowpea aphid to the virus, the acquisition feeding period was five seconds and inoculation feeding period was two minutes. This black locust mosaic virus, therefore, is a nonpersistent virus.

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Laboratory and Field Evaluations of Entomopathogenic Lecanicillium attenuatum CNU-23 for Control of Green Peach Aphid (Myzus persicae)

  • Kim, Hyang-Yeon;Lee, Hyang-Burm;Kim, Young-Cheol;Kim, In-Seon
    • Journal of Microbiology and Biotechnology
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    • 제18권12호
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    • pp.1915-1918
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    • 2008
  • An entomopathogenic fungus was isolated from an infected aphid. The isolate conformed most closely to Lecanicillium attenuatum CBS 402.78 (AJ292434) based on the internal transcribed spacer (ITS) region of its 18S rDNA, and thus was designated L. attenuatum CNU-23. Laboratory and field evaluations of CNU-23 blastospores were carried out for the control of green peach aphids. The laboratory evaluations of CNU-23 revealed an aphid mortality of about 80% with an estimated $LT_{50}$ of 3.72 days after the application of CNU-23 at $1{\times}10^6$ blastospores/ml. Meanwhile, the field evaluations of CNU-23 performed on greenhouse pepper plants during the rainy season showed an aphid mortality ranging from 72% to 97%. Significant sporulation was observed in the aphids treated with CNU-23. Therefore, the results suggest that L. attenuatum CNU-23 can be used as a biocontrol agent for green peach aphids on greenhouse pepper plants.

Control of Green Peach Aphid (Myzus Persicae) by Combination of Plant Oil Formulations and Low-dosed Imidacloprid

  • Yang, You Ri;Kim, Seon-Hwa;Park, Myung-Ryeol;Kim, Ik-Soo;Kim, In-Seon
    • 한국환경농학회지
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    • 제29권3호
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    • pp.239-246
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    • 2010
  • Aphids are one of the major pests in agricultural crops. A number of synthetic pesticides have been used for control of aphids in agriculture, but increasing public concerns over their adverse effects on the environment have required more environmentally-friendly methods for pest management. In this study, we examined plant oil formulations for the control of green peach aphid (Myzus persicae). Oil formulations were prepared by hydrolyzing the plant oils in ethanolic KOH solution and diluted at the rate of 1:500 for aphid control. The oil formulations showed aphid mortalities ranging from 24.44 to 43.33% in vitro. Significantly increased aphid mortalities were observed by the treatment of oil formulations combined with low-dosed imidacloprid. No significant difference in the aphid mortality was observed between the oil formulations. Mass spectrometry analyses of aphids treated with the low dosedimidacloprid plus the plant oil formulations detected similar concentrations of imidacloprid between the treatments. In field trial bioassays against aphids, significantly decreased aphid population were observed in the pepper plants treated with soybean oil formulation combined with the low-dosed imidacloprid, while aphid population dramatically increased in the pepper plants treated with the low-dosed imidacloprid alone. These results suggested that the plant oil formulations can be used as an environmentally-friendly method for enhancing the insecticidal effectiveness, which may play a role in reducing the use of synthetic pesticide in agriculture.

복숭아혹진딧물, Myzus persicae, 방제를 위한 제충국, 데리스, 고삼 추출물의 살충농도와 살충시간 결정 (Determination of Lethal Concentrations and Lethal Times of Extracts from Tanacetum cineariaiaefolium, Derris elliptica, and Sophora flavescens, to Control Green Peach Aphid, Myzus persicae)

  • 조가희;김효정;한송희;김영철
    • 한국응용곤충학회지
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    • 제62권4호
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    • pp.267-275
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    • 2023
  • 제충국(Tanacetum cineariaiaefolium), 데리스(Derris elliptica), 고삼(Sophora flavescens) 추출물은 다양한 해충을 방제하는데 사용되고 있다. 하지만, 국내에서 판매되고 있는 식물추춞물 자재는 유효성분의 표기가 없고, 살충농도와 살충시간에 대한 자료가 전무한 상황이다. 본 연구에서는 상용화된 주요 식물추출물의 살충유효성분의 농도를 결정하고 복숭아혹진딧물에 대해 살충농도와 살충시간을 측정하였다. 식물추출물의 살충활성성분인 pyrethrins, rotenone, matrine과 oxymatrine의 농도는 액체 크로마토그래피에서 표준물질을 활용하여 질량분석을 통해 측정하였다. 식물추출물을 농도별로 희석하여 복숭아혹진딧물에 살포하여 살충력을 측정하였다. 표준화합물과 비교한 후 질량분석 및 결정했습니다. Myzus persicae에 대한 lethal concentation과 lethal time을 조사했다. 살포 후 48시간 후 치사 농도(LC50)는 pyrethrins (20.4 ppm), roteone (34.1 ppm), matrine (29.6 ppm)였고, 100 ppm 살포한 LT50은 pyrethrins (13.4시간), rotenone (15.1시간), matrine (14.4시간)로 측정되었다. Kaplan-Meier 생존분석 결과, 100 ppm에서 세 가지 식물 추출물의 LT50은 대조구인 화학 살충제인 Sulfoxaflor를 살포 처리구보다 유의하게 빨랐습니다. 본 결과는 복숭아혹진딧물 방제를 위해 식물추출물의 제형화에 단일 또는 혼합 제제를 개발하는데 기준 살충농도와 살충시간을 제고하는데 의미가 있다.

진딧물류를 포식하는 혹파리, Aphidoletes aphidimyza(Roundani)(Diptera: Cecidomyiidae)의 복숭아혹진딧물 포식과 발육 (Development and Predation of a Aphidophagous Gall Midge, Aphidoletes aphidimyza (Roundani) (Diptera: Cecidomyiidae) on Myzus persicae Sulzer)

  • 최만영;이건휘;백채훈
    • 한국응용곤충학회지
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    • 제40권1호
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    • pp.45-45
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    • 2001
  • 진딧물류 천적 혹파리(Aphidoletes aphidimyza (Rondani))의 온도별 발육 및 복숭아혹진딧물에 대한 포식특성을 실험실 및 온실 조건에서 조사하였다. 온도와 유충의 발육속도와의 상관 을 구하였으며 ((regression; development rate (y) : 0.013348x (temperature)-0.173022, F = 41.14, p<0.01)), 발육영점온도는 $13^{\circ}C$이었다. $\25pm$2$^{\circ}C$ 에서 유충 발육기간은 5.3일 이었고, 1세대기간은 29 일이었다. 복숭아혹진딧물 밀도에 따른 혹파리의 포식량은 arena(직경 9cm)당 복숭아혹진딧물 10마리일 때 4마리를 포식하여 포화상태를 나타냈다. 온실조건에서 진디혹파리의 진딧물 포식은 지체적밀도의존반응과 유사한 반응을 보였다.

복숭아혹진딧물 방제용 식물추출물 탐색 및 살충성분 구명 (Screening of Plant Extracts and Identification of their Insecticidal Metabolites against Myzus persicae)

  • 양시영;임다정;김여희;김인선
    • 한국환경농학회지
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    • 제37권2호
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    • pp.125-134
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    • 2018
  • BACKGROUND: Green peach aphid (Myzus persicae) is an insect pest that significantly affects crop production. A number of pesticides have been used for aphid control, but their concerns on insect resistance and food safety have required alternative methods for pest management. In an effort to find for an alternative approach to aphid control, we screened plants extracts and examined their potentiality as insecticidal bio-resources. METHODS AND RESULTS: Two hundred and ninety eight plant extracts were examined for insecticidal activity against the aphid, and the best candidate among them was chosen for further study. The extracts from Cinnamomum camphora was determined to be the best candidate exhibiting insecticidal activity more than 60% at a level of $1,000{\mu}g/mL$. GC/MS analyses detected camphor, borneol, 4-terpineol, ${\alpha}$-terpineol and caryophyllene oxide as major compositions from the extracts obtained by hydrodistillation. Caryophyllene oxide exhibited the highest insecticidal activity with a $LC_{50}$ value of $237{\mu}g/mL$. Camphor lowered significantly the $LC_{50}$ value of caryophyllene oxide and increased largely its concentration in aphid, suggesting that camphor played a role in enhancing the insecticidal activity of caryophyllene oxide. CONCLUSION: This study suggested that camphor and caryophyllene oxide may be used as an insecticidal bio-resource for insect control against green peach aphid.