• Title/Summary/Keyword: 농약살균제

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뉴밀레니엄의 살균제 저항성 관리

  • 한국농약공업협회
    • Agrochemical news magazine
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    • v.21 no.2 s.155
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    • pp.46-49
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    • 2000
  • 살균제를 지속적으로 사용하는데 있어 저항성관리는 매우 중요하다. 저항성 관리가 없으면 농민과 재배자에 이용가능한 살균 성분수와 효과가 심각하게 감소될 수 있으며 제품은 제조회사들이 작물보호분야에서 요구되는 기술발전에 필수적인 연구개발 계획을 유지하기에 충분한 이윤을 내기전에 쓸모없이 될 수도 있다. 그러나 저항성 관리는 그 역사가 20년도 안되는 비교적 새로운 과학이어서 아직도 많은 연구가 필요한 분야이다.

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우리나라 농약의 변천사 -살균제를 중심으로-

  • 이두형
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.3 no.10
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    • pp.4-11
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    • 1982
  • 살균제가 어느 시대부터 사용되어 왔는지는 확실한 기록이 없어 알 수 없으나 농사가 시작된 오래전부터 재배된 작물을 병으로부터 보호하기 위하여 사용되었으리라는 것은 쉽게 상상할 수 있다. 19세기 이전에 사용된 살균제로서는 황(黃)에 의한 훈증, 승홍(昇汞) 및 황산구리(黃酸銅)에 의한 종자소독 등 이라고 추정할 수 있으나 우리나라에서의 확실한 기록이 없어 무엇이라 말 할 수가 없다. 우리나라에서의 과학적인 영농방법이 시작된 것은 1905년 이후 권업모범장의 연구 결과가 발표되기 시작하면서부터라고 말할 수 있다. 따라서 살균제의 변천과정을 1945년을 전후로 나누어 작물과 주성분에 따른 적용범위와 사용상의 문제점 등을 중점적으로 다루기로 한다.

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과수의 병해방제와 살균제의 효과적인 사용법

  • 이두형
    • The Bimonthly Magazine for Agrochemicals and Plant Protection
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    • v.5 no.8
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    • pp.2-7
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    • 1984
  • 우리나라에 제일 먼저 도입된 과수는 사과이며 그후 경제적인 과수원이 조성된것은 1901년이고 국가적인 차원에서 시험연구사업이 시작된 것은 1906년부터이다. 과수병의 연구는 1910년 부터 배나무 붉은별무늬병을 비롯하여 몇가지 병에 대한 약제방제시험으로부터 시작되었다. 본격적인 농약으로서의 살균제는 석회보르도액이며 1945년 이전까지 주로 과수원에서만 사용되어 왔다.

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Survey on Pesticide Usage in Paddy Rice for the Establishment of Pesticide Use Indicator (농약사용 지표설정을 위한 수도용 농약사용량 조사분석)

  • Kwon, Oh-Kyung;Hong, Su-Myeong;Choi, Dal-Soon;Seong, Ki-Seog;Ihm, Yang-Bin;Kang, Chung-Kil;Song, Byeong-Hun;Oh, Byung-Youl
    • The Korean Journal of Pesticide Science
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    • v.4 no.4
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    • pp.35-39
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    • 2000
  • In order to develop the indicators of environmental impact of pesticide, its actual usage in paddy rice was surveyed, and usage trends of individual pesticides were evaluated. The tendency of pesticide use indicated insecticide 43%, herbicide 29%, fungicide 27% and top ranking item in insecticide, herbicide and fungicide was carbofuran, molinate + pyrazosulfuran-ethyl, IBP. The usage statistics of formulation types showed GR>DP>WP>EC>FG>SP. Pesticide usage(a.i.) per hectare was 7.13kg and total usage for paddy rice was estimated at 8,387 M/T. In the result of comparison of fact-usage with pesticide consumption reported in 1998, the fitness was 94.7% for fungicide, 84.3% for insecticide, 77.8% for herbicide. The result of monitoring pesticide residue of unpolished-rice sampled from farm house of survey indicated 0.14 ppm(BPMC), 0.16 ppm(Isoprocarb), 0.17 ppm(Isoprothiolane). In case of rice straw, the residue level was 0.27 ppm(Isoprothiolane), 0.28 ppm(IBP), 0.39 ppm(Carbofuran). The residue levels of pesticides were below MRLs.

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Rainfastness of 5 Fungicides on the Leaf Surface of Hot Pepper (고추잎 표면에서 5종 살균제의 내우성)

  • Choi, Yun-Kyong;Yu, Ju-Hyun;Chun, Jae-Chul
    • Journal of Applied Biological Chemistry
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    • v.52 no.3
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    • pp.126-132
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    • 2009
  • In order to elucidate the relationship between the rainfastness of fungicides and their water solubilities, the fungicide residues on the leaf surface of hot pepper was assessed and compared after the drop-wise applications of fungicide solutions on leaf surface followed by artificial raining. As the raining was progressed after application of aqueous acetone solution of fungicides, the residue levels of fungicides were drop rapid at the early stage of raining, but the decreasing rates of residue level were slowed down thereafter. The initial rainfastness was reversely proportional to the water solubilities of the fungicides. Whole amount of dimethomorph residue, which water solubility is 18 mg/L, was washed off by 2.5 mm of raining. Although WP formulations of fungicides showed remarkable decreases of rainfastness compared to the aqueous acetone formulations, the fungicides having low water solubility showed better rainfastness. Chlorothalonil and mepanipyrim suspension concentrates was better in rainfastness than their WP formulation, and the rainfastness of mepanipyrim suspension was reversely proportional to the median diameter of suspension particles in the range of 1 to 4 ${\mu}m$. In brief, the rainfastness of 5 fungicides tested on the pepper leaf was, in the early stage of raining, closely related to water solubility. But, as the raining is progressed, the effect of the unknown factor, which is related with the particle size of fungicides, becomes serious.

Synthesis and fungicidal activity of new ${\beta}$-methoxyacrylate derivatives having thio-enol side chain (티오엔을 곁가지를 가진 메톡시아크릴레이트 화합물의 합성 및 살균활성 연구)

  • Lee, Hyeon-Kyu;Kim, Ji-A;Choi, Eun-Bok;Park, Chwang-Siek;Choi, Gyung-Ja
    • The Korean Journal of Pesticide Science
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    • v.9 no.2
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    • pp.132-139
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    • 2005
  • New ${\beta}$-methoxyacrylate derivatives 1-4 having thio-enol side chain were prepared and subjected to in vivo screening for fungicidal activity against phytopathogenic fungi and many of them showed good fungicidal activities against especially rice blast and wheat leaf rust at 100 ppm.