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으뜸애꽃노린재 성충에 대한 착색단고추에 등록된 농약의 저독성 및 잔류독성 평가
최병렬,박형만,김정환,이시우,Choi, Byeong-Ryeol,Park, Hyung-Man,Kim, Jeong-Hwan,Lee, Si-Woo 한국응용곤충학회 2007 한국응용곤충학회지 Vol.46 No.3
화학적방제와 생물적방제를 상호보완적으로 사용하여 해충을 방제하기 위해 천적에 대한 저독성 약제와 천적의 안전방사시기를 설정하였다. 고추와 착색단고추에 등록되어 있는 52종(살충제 33종, 살균제 19종)의 살충 살균제를 충체침지처리법과 잎침지처리법으로 독성을 평가하였다. 살충제의 충체침지처리 후 애꽃노린재 성충에 대한 저독성약제는 milbemectin유제 등 14종이었으며, 잎침지처리법에 의한 저독성약제는 12종이었다. 처리한 살균제 19종은 모두 천적에 대해 저독성을 보였다. 약제살포 후 1일에 안전방사 가능한 약제는 pyraclofos, methomyl, thiodicarb, esfenvalerate bifenthrin, alpha-cyrermethrin, etofenprox, fenvalerate, imidacloprid, acetamiprid, abamectin, emamectin benzoate, spinosad, indoxacarb등 14종이었으며, 네오니코티노이드계 농약은 잔류독성이 길게 나타났다. For the development of integrated pest management system by harmonizing biological and chemical control, some experiments were carried out to select low toxic pesticides and to evaluate residual toxicity to natural enemies. Leaf dipping method and body dipping method were set up for evaluating toxicity to minute pirate bug, Orius strigicollis adult. We had tested 52 kinds of pesticides (33 insecticides, 19 fungicides) commonly used to control greenhouse insects, mites, and disease pests to natural enemies at the recommended concentration. Fourteen insecticides by body dipping method, 12 insecticides by leaf dipping method and 19 fungicides were selected as low toxic pesticides to O. strigicollis adult. After insecticide spraying at recommending dose on the sweet pepper plant, we examined residual effect of insecticides by introducing natural enemies on different days. Safety interval for introduction of O. strigicollis adult was established according to residual toxicity of pesticides. Safety insecticides at one day after treatment were pyraclofos, methomyl, thiodicarb, esfenvalerate bifenthrin, alpha-cypermethrin, etofenprox, fenvalerate, imidacloprid, acetamiprid, abamectin, emamectin benzoate, spinosad, indoxacarb. However, residual toxicity of nee-nicotinoids last up to 21 days to O. strigicollis adults.
배추나비고치벌 (Cotesia glomerata)에 대한 저독성 약제 및 잔류독성
최병렬,이시우,박형만,Choi, Byeong-Ryeol,Lee, Si-Woo,Park, Hyung-Man 한국응용곤충학회 2007 한국응용곤충학회지 Vol.46 No.2
고랭지배추 재배지에 발생하는 나방류 해충의 방제에 생물적방제와 화학적방제의 조화로운 이용을 위하여, 배추 재배 시 사용되는 약제 중 배추좀나방의 천적인 배추나비고치별 (Cotesia glomerata) 에 대해 저독성을 보이는 약제를 선발하고 잔류독성을 평가하였다. 배추나비고치벌에 대한 저독성 약제선발 방법으로 먹이처리법 (Diet treatment method), 잎침지처리법 (Leaf dipping method) 및 충제침지처리법(Body dipping method) 을 확립하였다. 배추에 등록되어 있는 주요 살충제 31 종을 추천농도로 희석한 후 배추나비고치별 성충을 충체침지처리한 결과 22종이 저독성 약제로 선발되었으며, 배추에 등록된 살균제 및 제초제 15 종은 배추나비고치별 성충에 모두 독성이 낮았다. 배추에 13 종의 살충제를 처리하여 일수별로 배추나비고치벌 성충에 대한 잔류독성을 평가한 결과, 약제처리 l일후에 방사해도 안전한 약제는 thiacloprid, acephate, chlorfenapyr, clothianidin의 4 종이었으며, 3 일후에 방사가 가능한 약제는 imidacloprid, deltamethrin, thiamethoxam, dimethylvinphos, emamectin benzoate이었다. For the development of integrated pest management system by harmonizing biological and chemical control, some experiments wee carried out to select low toxic pesticides against natural enemies. and their residual toxicity were evaluated. Leaf dipping method, body dipping method, and diet treatment method were set up for the toxicity evaluation against Cotesia glomerata adults. We had tested 46 different pesticides (31 insecticides, 11 fungicides, 4 herbicides) at recommending concentration commonly used to control diamond back moth, disease and up-land weeds in chinese cabbage field. Twenty three insecticides, eleven fungicides, and four herbicides were shown to be low toxic to C. glomerata adults in the treatment of body dipping. After insecticide spraying at recommending dose on the chinese cabbage, we examined residual effect of insecticides by introducing natural enemies on different days. Safety interval for the introduction of C. glomerata adults was established according to the residual toxicity of pesticides. Safe insecticides for the introduction of C. glomerata adults at one day after treatment (DAT) were thiacloprid, acephate, chlorfenapyr, clothianidin and at 3 DAT were imidacloprid, deltamethrin, thiamethoxam, dimethylvinphos, emamectin benzoate.
큰밤고치벌(Microplites mediator)에 대한 저독성 약제 선발
최병렬(Choi Byeong-Ryeol),권민(Kwon Min),이시우(Lee Si-Woo),박형만(Park Hyung-Man) 한국농약과학회 2008 농약과학회지 Vol.12 No.2
For the development of integrated pest management system by harmonizing biological and chemical control, some experiments were carried out to select low toxic pesticides against natural enemies. Leaf dipping method, body dipping method, and diet treatment method were used for the toxicity evaluation against Microplites mediator adults. We tested 49 different pesticides (34 insecticides, 11 fungicides, 4 herbicides) at recommending concentration commonly used to control insect pests, disease and up-land weeds in chinese cabbage field. 16 insecticides, 11 fungicides, and 4 herbicides were shown to be low toxic to Microplites mediator adults in the treatment of body dipping.
Byeong Ryeol Choi(최병렬),S. A. Hilton,A. B. Broadbent 한국농약과학회 2003 농약과학회지 Vol.7 No.4
This study was conducted to select low toxic insecticides against natural enemies, and to evaluate resistance stability and cross-resistance to resistance strain for the fulfillment of integrated pest management development. Toxicity of imidacloprid and spinosad to Amblyseius cucumeris was relatively low regardless of the adopting test methods. In addition, those to the Amblyseius fallacis was also low by slide dipping method. The slide dipping method was useful to eliminate repellency effect by mites to the tested insecticides. Mortality of A. fallacis to deltamethrin recorded in 1994 and 1999 was 21.6% and 7.4%, respectively. Meanwhile, the permethrin-resistanct strain of A. fallacis was maintained its resistance to deltamethrin. However, the cross-resistance to the newly introduced insecticides namely imidacloprid, fipronil, chlorfenapyr, abamectin, and spinosad. was relatively low.
Imidacloprid에 대한 복숭아혹진딧물의 저항성 발달 및 교차저항성
최병렬(Byeong-Ryeol Choi),이시우(Si-Woo Lee),유재기(Jai-Ki Yoo) 한국농약과학회 2002 농약과학회지 Vol.6 No.4
Studies on the resistance monitoring of green peach ahpid, Myzus persicae, its development pattern by artificial selection with imidacloprid and cross-resistance were carried out to develope resistance management strategy. Resistance ratios of M. persicae collected at Hwachon and Dunnae among 5 locations in alpine cultivation area appeared to be high as 37.2 and 16.5, respectively. Resistance of aphid to imidacloprid developed slowly up to 20 time selection, and after that it grew quickly. Imidacloprid-resistant aphid strain showed low cross-resistance ratios(<10) to most of organophosphates, carbamates, and mixed insecticides except pirimicarb(487.8), but high ratios to acetamiprid(143.0) which is one of the neonicotinoids like imidacloprid, and pyrethroids such as deltamethrin(14.9), flucythrinate(12.9) and halothrin(15.9).
Imidacloprid의 아치사량이 복숭아혹진딧물의 생물적 특성에 미치는 영향
최병렬(Byeong-Ryeol Choi),이시우(Si-Woo Lee),송유한(Yoo-Han Song),유재기(Jai-Ki Yoo) 한국농약과학회 2005 농약과학회지 Vol.9 No.4
Sublethal dose effect of imidacloprid on green peach aphid (Myzus persicae) was investigated. Nymphs of green peach aphid newly produced were counted on 4 days after sub-lethal dose treatment of imidacloprid. Numbers of nymph were not significantly different between LC1 treatment and untreated control. Their numbers of nymph were 8.8 and 12.7 at LC₁ and untreated control, respectively. When they were treated at LC₁?, LC₃? and LC??, their numbers of newly produced nymph were 6.0, 5.1 and 3.9 and reduction rates were 52.7%, 59.8% and 69.3% at each treatment compare to untreated control. Reduction rates of newly laid nymph were proportional to the concentrations of imidacloprid treated. Repellent effect of aphid to imidacloprid was bigger in dipping than in watering method. Secretion amount had negative correlation with imidacloprid concentration in dipping method and suppression of secretion went up to 96% . In watering method, amount of secretion did not show any difference between insecticide concentration, but suppression, compared to untreated control, was over 97%.
최병렬(Byeong-Ryeol Choi),이시우(Si-Woo Lee),박형만(Hyung-Man Park),유재기(Jai-Ki Yoo),김선곤(Sun-Gon Kim),백채훈(Chai-Hun Baik) 한국농약과학회 2005 농약과학회지 Vol.9 No.4
This study was carried out for looking into the status of susceptibility of vinyl house insect pests to insecticides. The Thrips (Thrips palmi and Frankliniela occidentalis), Mites (Tetranychus urticae), Aphids (Aphis gossypii) and Whitefly (Trialeurodes vaporariorum) were captured at various areas where the host crop was being cultivated and the susceptibility level of each pest insect was investigated. The susceptibility of each pest insect varied by insect species and areas where they were caught. The tested insecticides showed good control effect to palm thrips in 2000, but in 2003 showed decrease of effect to them. Western flower thrips showed low susceptibility to neonicotinoids, imidacloprid and thiamethoxam, but high to chlorfenapyr, spinosad, emamectinbenzoate and fipronil. Antibiotic insecticides, abamectin and milbemectin, and chlorfenapyr were very effective on mite control and dicofol still had good effectiveness to it despite of long year use. No aphid species showed resistance to pyrethroid and carbamate insecticides. Relatively new insecticides such as imidacloprid, spinosad, pymetrozine were effective to whitefly, but not were organophosphates, carbamates and pyrethroids.