• The Korean Journal of Pesticide Science
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• v.5 no.1
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• pp.46-54
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• 2001

These studies were carried out to investigate the toxicities of 33 registered insecticide to the American serpentine leafminer, Liriomyza trifolii. Insecticidal activities were evaluated by testing systemic action and residual effect in the laboratory, and control efficacy and phytotoxicity in the greenhouse. All insecticides used in this study did not effect on the egg of L. trifolii, although spinosad showed 70% of egg-hatch suppression. For L. trifolii larvae ($2{\sim}3$ instar), the insecticides with over 95% of insecticidal activity were abamectin, cartap, cyromazine, emamectin benzoate, diflubenzuron + chlorpyrifos. The Insecticide what showed over 90% of insecticidal activity or neonate larvae were abamectin, cartap, emamectin benzoate, diflubenzuron + chlorpyrifos and milbemectin. Only cartap + buprofezin showed over 95% insecticidal activity against L. trifolii pupae. Almost insecticides used in this study little or not effected on the adult of L. trifolii. Emamectin benzoate and milbemectin showed moderate foliar systemic effects on eggs of L. trifolii (53.3, 47.9%, respectively). However, other insecticides showed little systemic effect. For larvae and adults, all insecticides showed low systemic effects. Insecticides with over 90% residual effect for 10 days were abamectin, emamectin benzoate and milbemectin (91.4, 90.4, 91.9%, respectively). In the control efficacy test on L. trifolii 90% of control values were obtained at 14th day after treatment of the insecticides including abamectin, cyromazine, emamectin benzoate and milbemectin. Cartap and cartap + buprofezin showed slight phytotoxicity on kidney bean leaf, however, other insecticides showed no phytotoxic effects. These results indicate that abamectin, emamectin benzoate and milbemectin can be used for tile control of L. trifolii in field.

• The Korean Journal of Pesticide Science
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• v.21 no.1
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• pp.33-41
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• 2017

Susceptibility and persistence of Japanese pine sawyer, Monochamus alternatus adults, and acute contact toxicity, foliage contact toxicity, and residual toxicity to honeybee, Apis mellifera were evaluated by using 5 kinds of neonicotinoid pesticides. All neonicotinoids pesticides showed over 80% mortality 48 hour after body spray treatment. However, only 2 kinds of acetamiprid ME and acetamiprid+buprofezin showed over 80% mortality in the twig dipping treatment. All of the five neonicotinoides pesticides used in M. alternatus adults showed residual effect of 60-80% mortality, but the efficacy decreased rapidly after 1 day of treatment. Acetamiprid ME showed the lowest toxicity in the acute and foliage contact toxicity test of A. mellifera. The residual toxicity of leaves on A. mellifera was very low in acetamiprid ME and acetamiprid+buprofezin. However, the residual toxicity of all pesticides treatments decreased to 10-30% after 1 day of treatment and further decreased with time. These results indicate that acetamiprid ME among five neonicotinoid agents showed a high insecticidal activity in the M. alternatus adults, while it exhibited relatively low contact and residual toxicity in the A. mellifera. It is thought that acetamiprid ME can be effectively used for the control of the M. alternatus adults as vector of pine wilt disease.

• The Korean Journal of Pesticide Science
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• v.15 no.2
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• pp.134-139
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• 2011

To investigate an amount of pesticide residue in rice paddy field soils and greenhouse soil, this monitoring was carried out pesticide detection frequency and concentrations collected samples from 150 rice paddy field soils and 152 greenhouse soils of nationwide in the year of 2007, and 2008, respectively. The detection limit of pesticides of this experiment were ranged 0.001~0.005 ppm. In 2007, One hundred fifty samples were collected from rice paddy field soils in April and monitored for 120 wide-used pesticides. A total of 11 pesticides were detected four fungicides, four insecticides and three herbicides in paddy field soils. The highest concentration levels of pesticide detected were 0.84 ppm as herbicide oxadiazon, 0.81 ppm as fungicide isoprothiolane and 0.50 ppm as insecticide buprofezin. The detection frequencies range were 0~19.3%, and the frequency was 2.7% as isoprothiolane and 19.3% as oxadiazon in paddy field soils. In 2008, One hundred fifty two samples were collected from greenhouse soils in April and monitored for 120 wide-used pesticides. A total of 29 pesticides were detected six fungicides, sixteen insecticides and seven herbicides in greenhouse soils. high concentration levels of pesticide detected levels were 5.09 ppm as insecticide chlorfenapyr, 2.57 ppm as fungicide chlorothalonil and 0.72 ppm as herbicide oxadiazon. The detection frequencies range were 0~38.8%, and high frequencies were 38.8% as insecticide endosulfan, 13.2% as oxadiazone, 10.5% as fungicide hexaconazole and 7.2% as isoprothiolane in greenhouse soils, Total endosulfan and oxadiazon were showed high detection frequency of 38.8% and 13.2%, respectively.

• Weed & Turfgrass Science
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• v.5 no.4
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• pp.230-235
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• 2016

Miscanthus are perennial rhizomatous grasses and considered as an ideal cellulosic bioenergy crop. Recently, it was reported that Miscanthus was damaged by the larvae of rice stem borer, Chilo suppressalis Walker, one of the most destructive pests of rice in Korea since the 1960s. This study was thus conducted to evaluate the insecticidal effects against rice stem borer in the Miscanthus cultivation fields for two years. The experiment consisted of four chemical agent plots, one environment-friendly agent plot, and untreated plot. Untreated plot showed significantly high damage of 50%, while Buprofezin Tebufenozide and Carbosulfan Methoxyfenozide treatment plots showed low damage rate of 2% with low larvae density of 1 and $2.3larvae\;m^{-2}$, respectively. Damage rates of Tebufenozide, ChlorantraniliproleIndoxacarb, and environment-friendly agent(MatrineWood vinegar solution) were 15, 26, and 18%, respectively, which were lower than that of untreated plot but higher than those of Buprofezin Tebufenozide and Carbosulfan Methoxyfenozide. In conclusion, rice insecticides were effective against rice stem borer in Miscanthus field. In particular, the treatments with Buprofezin Tebufenozide and Carbosulfan Methoxyfenozide showed excellent control effects with control value of 93.3 and 95.2. However, further studies with different types of insecticides should be carried out for the selection of insecticides with more effective control of rice stem borer.

• Proceedings of the Korean Society of Sericultural Science Conference
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• 2004.10a
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• pp.85-86
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• 2004

• Proceedings of the Korean Society of Sericultural Science Conference
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• 2004.04a
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• pp.41-42
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• 2004

• The Korean Journal of Pesticide Science
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• v.17 no.1
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• pp.72-75
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• 2013

This study was performed to investigate the susceptibility and control efficacy of 27 registered insecticides against pear psylla, Cacopsylla pyricola in laboratory and field (Jincheon). Mortality of 3rd instar of C. pyricola was higher treated with pyrifluquinazon WG (97.7%), flonicamid WG (94.7%), abamectin EC (92.8%), and acetamiprid+buprofezin EC (86.8%) sprayed with field recommended concentration using a prayer in laboratory. These four insecticides also showed control effects of > 90% at 5 days after treatment in field.

• Korean journal of applied entomology
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• v.43 no.3 s.136
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• pp.257-262
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• 2004

Toxicities of 51 pesticides (25 insecticides, 11, acaricides, 11 fungicides and 4 adjuvants) commonly used to control greenhouse insect, mite, and disease pests were evaluated to minute pirate bug, Orius strigicollis nymphs and adults at the recommended concentration. Among 25 insecticides tested, fipronil, lufenuron, acetamiprid+fipronil, $\alpha$-cypermethrin+flufenoxuron and buprofezin + amitraz showed low toxicity to O. strigicollis. Among acaricides, acequinocyl, bifenazate, chlorfenapyr, etoxazole, fenpyroximate, flufenoxuron, milbemectin, spirodiclofen and tebufenpyrad showed low toxicity to O. strigicollis. All fungicides and adjuvants tested were very low toxicity. It may be suggested from these results that five insecticides, nine acaricides, eleven fungicides and four adjuvants could be incorporated into the integrated thrips management system with O. strigicollis in greenhouses.

• The Korean Journal of Pesticide Science
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• v.4 no.1
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• pp.51-58
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• 2000

These studies were carried out to investigate the toxicities of 43 registered insecticides to the sweetpotato whitefly(Bemisia tabaci, B. biotype). Insecticide activities were evaluated by testing systemic action and residual effect in the laboratory, and control efficacy in the greenhouse. All experiments were tested at the recommended concentration(ppm) of each insecticides. Insect growth regulators (IGRs), pyriproxyfen and teflubenzuron showed >95% ovicidal effect. The insecticides that showed >95% larvicidal activity on 3rd nymphal instars were abamectin, acetamiprid, imidacloprid, pyriproxyfen, and acetamiprid+ ethofenprox. Insecticides with >95% adulticidal activity were abamectin, acetamiprid, diazinon, endosulfan, fenitrothion, imidacloprid, methidathion, pirimiphos-methyl, pymetrozine, spinosad, acetamiprid+ ethofenprox, cartap kydrochloride+buprofezin, and fenpropathrin+fenitrothion. Abamectin, acetamiprid, imidacloprid, pyriproxyfen, and acetamiprid+ethofenprox showed both residual effect and systemic activity. In the control efficacy test on B. tabaci, 90% control values were obtained at 1st day after treatment of the insecticides including abamectin, acetamiprid, imidacloprid, pyriproxyfen and acetamiprid+ethofenprox but in pyriproxyfen, 90% control value was reached at 7th day after treatment. These results indicate that abamectin, acetamiprid, imidacloprid, pyriproxyfen and acetamiprid+ethofenprox can be used in control for B. tabaci in field.

• Korean Journal of Veterinary Research
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• v.63 no.3
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• pp.21.1-21.6
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• 2023

The increasing prevalence of toxic substance-exposure in pets in South Korea endangers the health and safety of numerous companion animals, and has become a cause for concern. Notably, the annual incidence of forensic analysis in pets has increased by more than 150% in South Korea, mainly in populous regions such as Seoul, Incheon, and Gyeonggi. In response to this growing issue, veterinary forensic examinations were conducted on 549 dogs and cats from 2019 to 2022. This study revealed the presence of various toxic substances, including pesticides, insecticides, and drugs such as analgesics, anesthetics, antidepressants, and muscle relaxants, in pets. Among the 38 different toxins identified in pets, coumatetralyl, methomyl, terbufos, and buprofezin were the most frequently detected. In this study, toxic substances for pets were identified based on the "toxic agent list for humans," developed by the National Forensic Services, because no list of toxic agents for animals currently exists and data regarding potentially toxic substances for dogs and cats is limited. This is one of the limitations of this study, and necessitates the establishment of a toxic agent list for animals. Continued monitoring and research is also recommended to reveal the incidence, causes, and solutions of toxicity in animals.