http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
임양빈(Yang-Bin Ihm),김경선(Kyoung-Sun Kim),경기성(Kee-Sung Kyung),김남숙(Nam-Suk Kim),하헌영(Huen-Young Ha),이희동(Hee-Dong Lee),오경석(Kyeong-Seok Oh),김정원(Jung-Won Kim),류갑희(Gab-Hee Ryu) 한국농약과학회 2003 농약과학회지 Vol.7 No.4
In order to get the actual pesticide usage data for fruit crops at fanner's gate, this survey was carried out on the growers of 6 representative fruit crops such as apple, citrus, grape, peach, pear and persimmon, in Korea. One hundred fifty farmers were selected in main production areas to record their pesticide usage during the growing seasons. Pesticides were sprayed in pear 15.2 times/year and persimmon 7 times/year. Pesticide input amount per unit for fruits was 39.5 for citrus, 22.1 for apple, 21.5 for pear, 11.9 for peach, 10.8 for persimmon and 6.7 a.i. ㎏/㏊ for grape, respectively. The amounts of pesticides sprayed in 2002 except for peach and pear tend to decrease compared with those in 1999. The major fungicides used were mancozeb, propineb, dithianon, etc., while the major insecticides were fenitrothion, chlorpyrifos, methidathion, etc. Total active ingredients of pesticides used for six fruit crops amounted to 18.3% of total sales amount of pesticides for horticulture in 2002. The amounts of pesticides sprayed on citrus, grape, peach and pear in Korea was less than those in U.S.A., excepting those in apple.
임양빈(Yang-Bin Ihm),경기성(Kee-Sung Kyung),박영섭(Young-Sup Park),이희동(Hee-Dong Lee),김진배(Jin-Bae Kim),임건재(Gun-Jae Im),류갑희(Gab-Hee Ryu) 한국농약과학회 2002 농약과학회지 Vol.6 No.4
This experiment was conducted to elucidate the effects of fruit bagging on the amounts of pesticide residues on/in pears with two pesticides, chlorpyrifos 25% WP and penconazole 5% WP, and two pear cultivars, Niitaka and Hwangeum-bae. Residues of chlorpyrifos and penconazole in bagged pears were only 0.4~27% of those in non-bagged one. Residues of both pesticides in bagged and non-bagged pears were steeply reduced in the field but slowly reduced during storage. Residues of chlorpyrifos were more in the peel than in the flesh, while penconazole in bagged pear was evenly distributed in the peel and flesh. Chlorpyrifos was evenly distributed in outer bag and inner bag irrespective of bag materials, while most of penconazole was found in outer bag rather than in inner bag. To produce safer pear from pesticide residues, removal of bag before storage is recommended.
농약의 양액 탱크내 혼합처리에 의한 토마토 역병 방제 효과 및 잔류 특성
임양빈(Yang-Bin Ihm),경기성(Kee-Sung Kyung),김찬섭(Chan-Sub Kim),박병준(Byung-Jun Park),이중섭(Jung-Sup Lee) 한국농약과학회 2003 농약과학회지 Vol.7 No.4
To control effectively and safely Phytophthora root rot caused by Phytophthora capsici on tomato in hydroponic culture, tank-mixing method was considered with two pesticides, metalaxylㆍcopper oxychloride 50% WP and dimethomorphㆍdithianon 38% WP. Forty days after transplanting of tomato seedlings, 4 mL of sporangia of P. capsici (about 25 sporangi/mL) per plot was inoculated around tomato plant roots, and at 5 days after inoculation, the pesticides tank-mixed at three dilution levels, 12,500, 25,000 and 50,000, were drenched 1, 2 or 3 times per plot on the culture cube every 15 days for metalaxylㆍcopper oxychloride 50% WP and every 10 days for dimethomorphㆍdithianon 38% WP. During the drenching period, the residue levels of metalaxyl and dimethomorph in hydroponic culture solution were similar to the initial levels but the level of dithianon was drastically decreased from one day after tank-mixing. In tomato drenched with metalaxylㆍcopper oxychloride 50% WP, metalaxyl was detected 0.02~0.04 ㎎/㎏ in all diluted plots. Dimethomorph was detected 0.012~0.021, 0.001~0.006 and 0.001~0.003 ㎎/㎏ in 12,500, 25,000 and 50,000 times diluted plots, respectively, while dithianon was detected 0.005, 0.003 ㎎/㎏ in 12,500 and 50,000 times diluted plots, respectively. The detection levels of three pesticides were far below compared with the levels of Korean MRLs. Incidences of Phytophthora root rot were not found in all the plots, but phytotoxic responses were recognized in the 12,500 times diluted plots of both pesticides. Based on the above results, the drenching of the culture solution tank-mixed with these pesticides could be recommended as a very safe and effective method to control Phytophthora root rot in tomato in hydroponic culture.
살충제 imidacloprid의 물 및 물-토양계 중 광분해
임양빈(Yang Bin Ihm),경기성(Kee Sung Kyung),김찬섭(Chan Sub Kim),최병렬(Byeong Ryeol Choi),홍수명(Soo Myung Hong),이재구(Jae Koo Lee) 한국농약과학회 2004 농약과학회지 Vol.8 No.1
To elucidate the photolysis characteristics of the insecticide imidacloprid in the environment, [¹⁴C]imidacloprid was treated into water and paddy soil-water system. In water system, the amount of ¹⁴C-radioactivity distributed in aqueous phase was rapidly increased up to 80% of total ¹⁴C in water during 7 days of exposure to sunlight. Also, the amounts of imidacloprid in water at day 0 and 3 days after treatment were 1.2461 and 0.8594 ㎎/㎏, respectively, not being detected 7 days after treatment, indicating rapid degradation of imidacloprid in water by sunlight. One photodegradation product, imidacloprid urea, in which the N-NO₂ moiety of imidacloprid was replaced by oxygen, was detected from water in water and water-paddy systems. The amount of the metabolite detected from water in water system was 0.0112 ㎎/㎏ 1 day after treatment and reached the top concentration of 0.0391 ㎎/㎏ 7 days after treatment. In case of water-paddy system, its amount was 0.0117 ㎎/㎏ 1 day after treatment and reached the highest concentration of 0.0259 ㎎/㎏ 3 days after treatment. Rapid transformation of imidacloprid into polar compounds continued until 7 days after treatment, considering that 80% of ¹⁴C in water distributed in aqueous phase 7 days after treatment. The amount of imidacloprid was 1.6538 ㎎/㎏ at day 0 and 0.8785 ㎎/㎏ 1 day after treatment, not being detected after 15 days, indicating rapid degradation of imidacloprid in water-paddy soil system by sunlight. The direct degradation of imidacloprid to imidacloprid urea would be a major photodegradation pathway in water and water-paddy soil systems.
약제 관주처리에 의한 양액재배 토마토의 역병 방제 및 농약잔류 특성
임양빈(Yang-Bin Ihm),이중섭(Jung-Sup Lee),경기성(Kee-Sung Kyung),김찬섭(Chan-Sub Kim),오경석(Kyeong-Seok Oh),진용덕(Yong-Duk Jin),이병무(Byung-Moo Lee) 한국농약과학회 2002 농약과학회지 Vol.6 No.4
To establish effective and safe control method against Phytophthora root rot caused by Phytophthora capsici on tomato in hydroponic culture, three pesticides, oxadixylㆍcopper hydroxide 8% WP, metalaxylㆍcopper oxychloride 15% WP, and dimethomorphㆍdithianon 38% WP at 4 concentration levels were tested on potato dextrose agar medium inoculated with Phytophthora capsici. All pesticides inhibited mycelial growth, but two pesticides of them, metalaxylㆍcopper oxychloride WP and dimethomorphㆍdithianon WP, were selected as effective pesticides for the efficacy test in a hydroponic culture. Forty days after transplanting of tomato seedlings, 4 ㎖ of sporangia of P. capsici (about 25 sporangi/㎖) per plot was inoculated around tomato plant root, and then 5 days after inoculation, the pesticides diluted at 5,000 times were drenched 1, 2 or 3 times per plot on the culture cube at 15 days interval. Fifteen days after drenching, tomato fruits and hydroponic culture solution were sampled for the analysis of pesticide residues. Dimethomorph was detected 0.001 and 0.003 ㎎/㎏ in tomato of the plots sprayed 2 and 3 times with dimethomorphㆍdithianon WP of which detection levels were far below compared with 1.0 ㎎/㎏ of the Korean MRL of dimethomorph on tomato. Incidences of Phytophthora root rot were 30.5~50% in the plots drenched at 1 or 2 times with metalaxy1ㆍcopper oxychloride WP, and 16.7~25% in the plots treated with dimethomorphㆍdithianon WP. However, there was no incidence of Phytophthora root rot in the plots treated at 3 times with both of pesticides, showing no phytotoxic effect. Based on the results, the drenching of these pesticides on the culture cube could be recommended as a very safe and effective control method for Phytophthora root rot in tomato.
살충제 imidacloprid의 붕어(Carassius auratus L.)중 행적 및 장기에 대한 독성
임양빈(Yang Bin Ihm),김찬섭(Chan Sub Kim),이희동(Hee Dong Lee),정미혜(Mihye Jeong),김대규(Dae Kyu Kim),경기성(Kee Sung Kyung) 한국농약과학회 2006 농약과학회지 Vol.10 No.4
In order to elucidate the behavior of the insecticide imidacloprid (1-(6-chloro-3-pyridylmethyl)-Nnitroimidazolidin-2-ylideneamine) in crucian carp (Carassius auratus L.) and its effects on the internal organs of crucian carp, the crucian carps were exposed to [<SUP>14</SUP>C]imidacloprid at a predicted environmental concentration of 0.064 ㎎/L for 4 days. Imidacloprid in water was absorbed into crucian carps to reach the maximum concentration at 2 days after exposure. Unknown major metabolite and imidacloprid urea, minor metabolite, were detected in test water. The amounts of the [<SUP>14</SUP>C]imidacloprid and its metabolites absorbed in gall were much higher than those in the other parts, strongly suggesting that biliary excretion involving enterohepatic recirculation could be an import route for the elimination of imidacloprid absorbed in crucian carps. Meanwhile, no toxic effects of imidacloprid on liver and kidney as well as the genital organs such as testis and ovary were observed by microscopic inspection.
고추재배 포장 라이시메타를 이용한 fluazinam의 유출 평가
김찬섭(Chan-Sub Kim),임양빈(Yang-Bin Ihm),권혜영(Hye-Young Kwon),임건재(Geon-Jae Im) 한국농약과학회 2013 농약과학회지 Vol.17 No.4
The field lysimeter study was undertaken to investigate influence of agricultural practice and topography on runoff and erosion loss of fluazinam from the sloped land grown pepper. The WP type formulation was applied on July in 2003~2005. The wash-off rates were from 1.4% to 8.4% of the applied fluazinam. The runoff losses of fluazinam from a series of pepper grown-lysimeter plots were 0.14~0.90% in the first year, 0.01~0.04% in the second year and 0.16~0.37% in the third year for the mulched contour ridge plots, 0.47~1.59% for the mulched up-down direction ridge plots and 0.07~1.05% for the no-mulched contour ridge plots as the control, and they increased with slope degree. Concentrations of fluazinam in runoff water ranged mostly to 10 μg L<SUP>?1</SUP> at the first runoff event. Erosion rates from plots except the mulched up-down direction ridge plots was 0.00~0.21% for 10% and 20% slope-plots and 0.15~1.05% for 30% slope-plots with different slope degrees. Erosion rates from the mulched up-down direction ridge plots were 0.47~1.59% for 10% slope-plots and 0.75~1.05% for 20% slope-plots. Residues of fluazinam in soil at ten days after the application ranged from 0.007 mg kg<SUP>?1</SUP> to 0.059 mg kg<SUP>?1</SUP> except the soil under the mulch. After then the fluazinam residue in soil was dissipated at the rate of 20 days of half-life to below 0.01 mg kg<SUP>?1</SUP> at 60 days after the application.
오경석(Kyeong Seok Oh),임양빈(Yang Bin Ihm),오홍규(Hong Kyu Oh),이병무(Byung Moo Lee),경기성(Kee Sung Kyung),김남숙(Nam Sook Kim),김백연(Baek Youn Kim),김정원(Jeong Won Kim),류갑희(Gap Hee Ryu) 한국농약과학회 2003 농약과학회지 Vol.7 No.1
Actual pesticide usage in fruit vegetable cultivation was surveyed. Usage trend of individual pesticides was evaluated to provide the data for the development of indicators of environmental impact and the production of safe agricultural products. The amount of the pesticides used for fruit vegetables was revealed in order of fungicide>insecticide>herbicide, showing that the portion of fungicide to the total amount used was about 70 to 80%. Main fungicides used on fruit vegetables were mancozeb, thiophanate-methyl propineb, etc while the insecticides were imidacloprid, milbemectin, methomyl, etc. Main formulation types of pesticide were wettable powder and emulsifiable concentrate. By different fruit vegetables and cultivation patterns, pesticide use per unit area was revealed red pepper (field cultivation, 13.2㎏/㏊), cucumber (field cultivation, 12.4㎏/㏊), sweet melon (field cultivation, 1l.2㎏/㏊) as high pesticide use crops, meanwhile, water melon (greenhouse cultivation, 1.2㎏/㏊), sweet melon (greenhouse cultivation, 2.2㎏/㏊), strawberry (field cultivation, 2.8㎏/㏊) as low pesticide use crops.