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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
The Korean Journal of Pesticide Science
Journal Basic Information
Journal DOI :
The Korean Society of Pesticide Science
Editor in Chief :
Volume & Issues
Volume 5, Issue 4 - Dec 2001
Volume 5, Issue 3 - Sep 2001
Volume 5, Issue 2 - Jun 2001
Volume 5, Issue 1 - Mar 2001
Selecting the target year
Review of Disease Incidence of Major Crops in 2000
Kim, Choong-Hoe ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 1~11
Climate in the year of 2000 was characterized as a long severe drought in tile spring, unusually high and low temperature in summer, two times of typoons, and floods by heavy rains in fall. Rice leaf and panicle blast and bacterial grain rot occurred severely comparing with 1999 and Bipolaris leaf spot spread over tile country. Phytophthora blight and anthracnose in red-pepper became epidemic especially in the late season causing severe yield losses. Tomato fusaruim wilt, CGMMV, powdery mildew, and sudden wilt syndrom of cucurbits and strawberry powdery mildew were also severe in 2000. In garlic, sclerotium rot occurred severely mainly due to the frequent rainfalls in planting time and much snowfalls in 1999's winter. Spring potato had severe infection of viruses due to a long spring drought, and fall potato had high incidence of bacterial soft rot and bacterial wilt due to fall floods by heavy rains. In sweet potato fusarium wilt was the most severe as in other year. Disease incidence of apple and pear trees was rotatively mild compared with previous years. In wheat and barley, Gibberella petch rarely occurred because of spring drought.
Enzymatic Analysis of Organophosphorus Pesticides Using Cholinesterase Inhibition Activities
Kim, Jung-Ho ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 12~18
The effects of organophosphorus were examined with inhibition of the cholinesterase activity on tile chicken plasma in vivo and in vitro. The cholinesterase activity in chicken plasma determined by tile Ellman mettled was
/min/g protein. After oral administration with 0.2 and 0.5 times of organophosphorus terbufos
(1.81 mg/kg), cholinesterase activity were inhibited to 36% and 96% of control after 15min in vivo, respectively. After oral administration with 0.2 and 0.5 times of terbufos
(1.81 mg/kg), then the recovery of cholinesterase activity followed to 99% and 56% of control after 11hr, respectively. Ki of phosphorodithioate and phosphorothioate with P=S was
in vitro. Ki of phosphate and phosphorothiolate with P=O was
. Toxicology of organophosphorus with P=S was higher than that of organophosphorus with P=S by oxidation.
of phosphorodithioate and phosphorothioate with P=S was
of phosphate and phosphorothiolate with P=O was
mg/L. Enzyme-Inhibition method with cholinesterase was the rapid bioassay method to detect the organohpophorus pesticides in vitro.
Monitoring Survey of the Herbicide Butachlor in Five Major Crops
Moon, Young-Hee ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 19~23
This study was conducted to monitor the residue of the herbicide butachlor in major crops. The residue monitoring covered 106 samples of rice, barley, garlic, onion, and strawberry colledted from markets of intensive cultivation area including Kwangju, Daegu, and Pusan. The residue levels in 27 sample of polished rice produced by applying the herbicide were below the detection limits adopted analytical method. The residue levels in 21 sample of garlic, 18 sample of onion, and 18 sample of strawberry which were succeeding crops after paddy rice were also below the detection limits. In consequent, all the samples resulted safe status in terms of the butachlor residue level in agricultural produce.
Insecticidal Activities of Bilobalide from Ginkgo biloba Leaves and its Derivatives
Yang, Eun-Young ; Hong, Su-Myeong ; Ahn, Young-Joon ; Kwon, Oh-Kyung ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 24~29
This study was conducted to investigate insecticidal activities of Ginkgo biloba (L.) leaves-derived bilobalide and its hydrolysis and oxidation products against adults of Nilaparavata lugens Stal. To find out active insecticidal moiety of bilobalide, decomposed intermediates and derivatives of bilobalide were made by hydrolysis, oxidation, and acetylation. The structures of hydrolysis product by base and oxidation product by acid were identified as cyclopentenone analogues and trilactone sesquiterpene from dehydration of bilobalide, respectively. Insecticidal activities of the decomposed intermediates and the derivatives of bilobalide decreased in the order of bilobalide, monoacetate, ginkgolide C, oxidation product, diacetate, and hydrolysis product. Therefore, trilactone structure of bilobalide may be essential for its insecticidal activity.
Diamondback moth (Plutella xylostella L.) resistance to organophosphorus and carbamate insecticides in Kangwon alpine vegetable croplands
Cho, Jun-Mo ; Kim, Kyoung-Ju ; Kim, Song-Mun ; Han, Dae-Sung ; Hur, Jang-Hyun ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 30~35
Diamondback moth (Plutella xylostella L.) recently became a single worst insect which is not controlled effectively by organophosphorus and carbamate insecticides in Kangwon alpine croplands. The objective of this study was to determine if diamondback moth has developed a resistance to organophosphorus and carbamate insecticides. Resistance of diamondback moth, collected at Keichon, Jangpyong Taebaek, Chunchon, and Hongchon, was determined by the concentration required to kill fifty percent of population,
. Their response of resistance varied to insecticides and locations: Taebaek populations were 35 and 70 times more resistant to chlorpyrifos and fenitrothion, respectively, than susceptible(S) population. Hongchon populations were 94 and 254 times more resistant to chlorpyrifos and fenitrothion, respectively, than S population. In addition, Chunchon populations were 37 and 19 times more resistant to profenofos and benfuracarb, respectively, than S population. However, the field populations did not differ in resistance to diazinon, phenthoate, flupyrazofos, carbofuran, and furathiocarb. This study show that field populations of diamondback moth found in Kangwon alpine vegetable croplands have developed a resistance and/or multiple resistance to some insecticides, implying that farmers are losing organophosphorus and carbamate insecticide options for selective control in vegetable crops.
Searching of Possible Target Enzymes for Herbicide Development using Commercial Plant-Specific Inhibitors
Hwan, In-Taek ; Choi, Jung-Sup ; Park, Sang-Hee ; Lee, Kwan-Hwi ; Lee, Byung-Hoi ; Hong, Kyung-Sik ; Cho, Kwang-Yun ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 36~45
This study was conducted to search new target enzymes of novel herbicide candidate. Total of 107 biochemical inhibitors reported to inhibit over than 100 different plant enzymes were purchased from commercial chemical companies. 15 inhibitors and 34 enzymes were selected by germination assay, seedling assay, wheat leaf disc assay, and whole plant assay. Among them, seven compounds of purine, phehyl-hydrazine, o-phenanthroline, oleylamine, dicyclohexylcarbodiimide, 7,8-benzoquinoline, and aminooxyacetic acid showed high herbicidal activity in the whole plant assay under greenhouse while 7,8-benzoquinone, 8-hydroxyquinoline, 2,2'-dipyridyl, and o-phenanthroline inhibited seed germination of barnyardgrass, rice, and tomato at concentrations of 1.25 to
. The compounds of 7,8-benzoquinoline, chlorpromazine, cyanuric fluoride, 4-methylpyrazole, oleylamine, tranylcypromine, and trifluoperazine inhibited the growth of cyanobacteria at 30 to
. The compounds of dicyclohexylcarbodiimide and chlorpromazine exhibited whitening effect on tile wheat leaf disc at
. These results suggest that the plant-specific enzyme inhibitors which have biological activities may supply the target enzyme for developing new herbicide candidate.
Activity and control effects of insecticides to American serpentine leafminer, Liriomyza trifolii(Diptera: Agromyzidae)
Kim, Gil-Hah ; Lee, Young-Su ; Park, Sun-Young ; Park, Yong-Seong ; Kim, Jeong-Wha ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 46~54
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 (
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.
Efficacy of a petroleum spray oil for the control of citrus pests, spirea aphid (Aphis citricola) and two scales (lcerya purchasi and Planococcus cryptus) in Jeju island
Kim, Dong-Whan ; Kang, Si-Yong ; Kim, Kwang-Sik ; Song, Jeong-Hueb ; Hyun, Jae-Uk ; Riu, Key-Zung ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 55~60
The efficacy of petroleum spray oil (PSO; D-C Tron
) against spirea aphid (Aphis citricola) and two scales (lcerya purchasi and Planococcus cryptus) on citrus was tested in Jeju, Korea. The control value of 0.33% PSO against spirea aphid was over 90% at 3 and 6 days after treatment (DAT), and then decreased to about 80% at 9 and 14 DAT. Spraying of PSO (0.33, 0.66, 1%) against cottony-cushion scale showed a much lower control value (less than 50%) during the investigation period compared to that of the conventional pesticide (Methion). When used against tile scale, Planococcus cryptus, the control value of 1% PSO was 95%, but that of 0.33% and 0.66% PSO only ranged from 50 to 80%, lower than the conventional pesticide. The results of this study, as with a previous study, suggest that spraying of 0.33% and 0.5% PSO not only controls the spirea aphid, but also reduces the density of two scales (lcerya purchasi and Planococcus cryptus) on citrus tree in Jeju, without phytotoxic damage.
Occurrence and Changes of Botrytis elliptica resistant to fungicides
Kim, Byung-Sup ; Chun, Hwan-Hong ; Hwang, Young-A ;
The Korean Journal of Pesticide Science, volume 5, issue 1, 2001, Pages 61~67
Five hundred sixteen isolates of Botrytis elliptica were isolated from infected leaves of Lilium longiflorum from Kangwon alpine areas in Korea during tile seasons from 1998 to 2000 and resistance of these isolates against some fungicides were examined. The isolation frequency of phenotypes resistant to benomyl, procymidone, and diethofencarb were 90.1, 32.4, and 40.9%, respectively. The isolates were divided into six phenotypic groups; RSS, RRS, SSR, SRR, RSR and RRR, representing sensitive (S) or resistant (R) to benzimidazole, dicarboximide, and N-phenylcarbamate fungicides in order. The percentage of six phenotypes were 40.7, 8.5, 7.2, 2.7, 19.8, and 21.1%, respectively. The RSS phenotype was the most frequently isolated, and tile SRR consisted of the extremely minor populations. In comparison studies on tile overwintering ability of each phenotype in relation to the others, the most frequently isolated RSS and SSR had the higher fitness ability than the less frequently isolated RSR, SRR, and RRR. Recently, population increase of tile RSR and RRR phenotypes may have resulted from the increased applications of the mixture of carbendazim and diethofencarb to control benzimidazole-resistant B. elliptica since 1998. The results of this study indicate that careful application of the fungicides is necessary to achieve effective control of leaf blight on lily in Korea.