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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.
홍순성(Soonsung Hong),이제봉(Je Bong Lee),박연기(Yeon-Ki Park),신진섭(Jin Sup Shin),임건재(Geon-Jae Im),류갑희(Gab Hee Ryu) 한국농약과학회 2007 농약과학회지 Vol.11 No.4
This research was carried out to propose the Korean method for estimating the agricultural occupational pesticide exposure level in orchard. The UK-POEM (UK-Predictive Operator Exposure Model) was proposed as a bench-marking model and analysed its performance properties. To extrapolate the Korean agricultural conditions, application equipment, application method, work rate per day, application volume and spraying time of pesticide was surveyed for Korean 204 orchard farmhouse. This survey indicate that the major application equipments are speed sprayer(64.9%) and motor sprayer(33.9%). When they spayed the pesticide with a speed sprayer, they worked for more than 4 hours on area of 4 ha per day. In case of using motor sprayer, they worked for more than 4 hours on area of 1 ha. Based on the above survey result, Korean method for estimating the pesticide exposure level of agricultural worker was proposed finally.
배추과 작물들에서 무테두리진딧물과 양배추가루진딧물에 대한 3종 살충제의 약효비교
김영호(Young-Ho Kim),유재기(Jai-Ki Yoo),홍석일(Suk-Il Hong),이주용(Joo-Yong Lee),류갑희(Gab-Hee Ryu),김우식(Woo-Sik Kim) 한국농약과학회 2017 농약과학회지 Vol.21 No.3
This experiment was conducted to compare the three insecticides (imidacloprid, pymetrozine and bifenthrin) efficacy against turnip aphid (Lipaphis erysimi) and cabbage aphid (Brevicoryne brassicae) in various leafy vegetables of crucifer (korean cabbage, young radish, mustard greens, canola, cabbage and chinese kale) applied with one time foliar spraying under the vinyl house condition and to provide the basis of extrapolation to apply the field trail insecticide efficacy data of a crop to other minor crops. The three insecticides against the aphids showed very high insecticidal activity with more than 96% of control efficacy in all the crops without statistically significant differences. Accordingly, all the tested crops can be classified into the same group as for the insecticide efficacy experiment against aphids. Also, the results of this study suggest that the control efficacy data of a minor crop can possibly be applied to the other crops within the same group.
안창현(Chang-Hyun Ahn),김용훈(Yong-Hun Kim),엄훈식(Hoon-Sik Eom),이광하(Gwang-Ha Lee),류갑희(Gab-Hee Ryu) 한국농약과학회 2014 농약과학회지 Vol.18 No.4
This study was carried out to investigate the pesticide efficacy and crop safety among different leafy vegetables applied with foliar spraying under greenhouse and to check extrapolating from some trial data to other minor crops. Leafy vegetables used in this study were: lettuce (Lactuca sativar), leaf broccoli (Brassica oleracea.), chicory (Cichorium intybus.), chinese cabbage (Brassica campestris subsp. napus var. pekinensis), radish (Raphanus sativus), rape (Brassica napus), crown daisy (Chrysanthemum coronarium), edible burdock (Arctium lappa), endive (Cichorium endivia) and mustard greens (Brassica jumcea). Based on the result of control efficacy, all crops were classified into the groups. The results showed the probabilities of extrapolating the control value data of minor crop within the same group. It would be possible to use the pesticides which are already been registered for similar crops to those crops have no registered pesticides.