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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 13, Issue 4 - Dec 2009
Volume 13, Issue 3 - Sep 2009
Volume 13, Issue 2 - Jun 2009
Volume 13, Issue 1 - Mar 2009
Selecting the target year
Change of the Concentration of Pesticide Residues in Pepper Powder by Storage Temperature and Storage Period
Jo, Sung-Ae ; Kim, Eun-Hee ; Kim, Kyung-Sig ; Kim, Jung-Hun ; Park, Seog-Gee ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 127~132
The purpose of this study is to examine changes in the pesticides residues in pepper powder by storage conditions. Analysis of pesticide residues was performed using multiresidue analytical methods and the number of pesticides detected from 60 pepper powders was 7 pesticides such as cypermethrin, fenvalerate, kresoxim-methyl, chlorpyrifos, chlorfenapyr azoxystrobin, tebuconazole. The concentrations of cypermethrin and tebuconazole were exceeded their maximum residue limits (MRLs). The degradation patterns of pesticides at
were compared to those at
. Without reference to storage temperature, degradation rates of azoxystrobin and fenvalerate were above 80%. Degradation rate of chlorpyrifos was 47% at storage
and 34% at storage
. During each storage peroid, the degradation patterns were more lower at
Gas Chromatographic Performances for Simultaneous Determination of Multi-pesticide Residues and Extraction of Pesticides with Three Partition Solvents
Kim, Chan-Sub ; Kim, Jin-Bae ; Im, Geon-Jae ; Park, Hyun-Ju ; Lee, Young-Deuk ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 133~147
In order to develop the simultaneous analytical method for pesticide residues which ones in soil are rapidly and inexpensively measured by, many analytical methods for individual pesticide residue and several methods for multi-pesticide residues in agricultural commodities and food were reviewed. Various gas chromatographic conditions and pre-treatment procedures were intensively investigated and modified. And then new optimum procedure was established and its proficiency was validated. The response on detectors of simultaneous determination of 180 pesticides out of pesticides used in Korea was tested. The number of pesticides that their limits of detection (LOD) equal or lower than
were 137 pesticides on ECD, 170 pesticides on NPD and 179 pesticides on ECD/NPD integrated. The retention times of most pesticides ranged appropriately between 10 minutes and 40 minutes in the proposed chromatographic conditions. But about 90 pesticides eluded between 20 minutes and 30 minutes and so they were not resolved enough. In partition with dichloromethane, ethyl acetate/hexane (1:1) and ethyl acetate, number of pesticides whose extraction efficiency ranged from 70% to 120%, were 163, 154 and 147, respectively.
Safety Assesment of Pesticides Treated on Garlic to Control Black Rot during the Storage
You, Oh-Jong ; Jin, Yong-Duk ; Hwang, Se-Gu ; Lee, Yong-Hoon ; Ihm, Yang-Bin ; Kim, Jin-Bae ; Kwon, Oh-Kyung ; Kyung, Kee-Sung ; Kim, Jang-Eok ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 148~158
We tested and selected some agrochemicals reducing the occurrence of major pests and diseases during garlic storage. Tebuconazole, diphenylamine and prochloraz as fungicides and dimethate as a insecticide were sprayed or drenched before harvest. And the harvested garlic was dipped in each of the agrochemicals. The residues of pesticides in garlic bulbs treated were analyzed every month from harvesting time for 6 months. In case of Danyang garlic, which was treated with pesticides before and after harvesting, the residues of diphenylamine, tebuconazole, prochloraz, and dimethoate ranged from 0.008 to 0.28, from 0.03 to 0.32, from 0.02 to 0.12, and from 0.02 to 0.25 mg/kg, respectively. In case of Uiseong garlic, the residues of diphenylamine, tebuconazole, prochloraz and dimethoate ranged from 0.008 to 0.09, from 0.08 to 0.45, from 0.02 to 0.57, and from 0.04 to 0.38 mg/kg, respectively. And, in case of Namdo garlic, the residues of diphenylamine, tebuconazole, prochloraz, and dimethoate ranged from 0.008 to 0.52, from 0.07 to 1.67, from 0.02 to 0.17, and from 0.03 to 0.73 mg/kg, respectively. Some of the garlic samples treated with tebuconazole exceeded its maximum residue limits (MRLs) of 0.1 mg/kg set by Korea Food Drug Administration (KFDA), but dimethoate was detected below its MRL of 1.0 mg/kg. In case of diphenylamine and prochloraz, their MRLs for garlic were not set. Adapting their MRLs, 5.0 mg/kg of diphenylamine for apple and pear and 0.5 mg/kg of prochloraz for strawberry and grape, residue levels of diphenylamine and procloraz were below than their MRLs, with the exception of samples two times treated with procloraz in Namdo garlic. These results indicate that dimethoate can be used as an agrochemical to control the postharvest disease in garlic in only MRL aspect.
Processing and Reduction Factors of Pesticide Residues in Chinese Matrimony Vine and Jujube by Drying
Lee, Eun-Young ; Noh, Hyun-Ho ; Park, Young-Soon ; Kang, Kyung-Won ; Lee, Kwang-Hyen ; Park, Hyo-Kyung ; Kwon, Chan-Hyeok ; Im, Moo-Hyeog ; Kyung, Kee-Sung ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 159~164
This study was carried out to elucidate changes in concentration of pesticide residues in Chinese matrimony vine and jujube during drying. Test pesticides, triadimefon and triforine for chinese matrimony vine and methoxyfenozide and thiacloprid for jujube, which are commonly used for the crops in Korea, were treated to the crops by spraying and dipping. The pesticide residues in both fresh and dried Chinese matrimony vine and jujube were analyzed by using a GLC-ECD and an HPLC-DAD. Processing factors of the pesticides in Chinese matrimony vine and jujube by drying ranged from 1.41 to 2.28 and from 1.50 to 4.20, respectively. And reduction factors of the pesticides in the crops ranged from 0.29 to 0.47 and from 0.68 to 0.98, respectively. These results indicate that concentrations of the pesticides in the test crops increased after drying, while amounts of pesticides in them were diminished by drying.
Evaluation of Insecticidal Efficacy of Plant Extracts Against Major Insect Pests
Kim, Sam-Kyu ; Jin, Joon-Ho ; Lim, Chun-Keun ; Hur, Jang-Hyun ; Cho, Sae-Youll ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 165~170
Insecticidal efficacies of plant extracts and environmental friendly agro-materials against green peach aphids, two spotted spider mites, and diamondback moths were evaluated in the lab condition. Oxymatrine and matrine, derivatives of Sophora flavescens, were effective to all three tested pest insect species. Selected environmental friendly agro-materials available from the market mainly contained active ingredients of nicotine, azadirachtin, and matrine were all effective to control green peach aphids and two spotted spider mites.
Sensitivity to Ergosterol Biosynthesis Inhibiting-Fungicides of Colletotrichum gloeosporioides Isolated from Persimmon Trees
Lim, Tae-Heon ; Lee, Dong-Woon ; Choi, Yong-Hwa ; Lee, Sang-Myeong ; Han, Sang-Sub ; Cha, Byeong-Jin ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 171~176
In 2008, 110 isolates of Colletotrichum gloeosporioides were obtained from infected twigs of persimmon collected at Sangju and five fungicides (prochloraz manganese complex, tebuconazole, mancozeb+myclobutanil, fluquinconazole+prochloraz, and tebuconazole+tolyfluanid) were evaluated to determine their growth on fungicide-medium. Among them, the mycelial growth of 97.3 and 98.2% of isolates was inhibited over 91% in response to prochloraz (
) and tebuconazole (
), respectively, compared to untreated control. In response to mancozeb+myclobutanil, fluquinconazole+prochloraz, and tebuconazole+tolyfluanid, isolates of 96.4, 99.1 and 96.4% of them were inhibited by fungicides, respectively. Isolates showed the highest sensitivity to fluquinconazole+prochloraz among 5 fungicides. The correlation between tebuconazole and tebuconazole+tolyfluanid was higher (r=0.85).
Pathomorphological Peculiarity of Dometic Silkworm, Bombyx mori. Infected with Cordyceps, Paecilomyces tenuipes
Yun, Jae-Su ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 177~184
This study was carried out to investigate infection process, symptoms and main component of the domestic silkworm, Bombyx mori. larvae and pupa infected with the entomopathogenic fungus Cordyceps, Paecillomyces tenuipes. The Cordyceps, Paecillomyces tenuipes, was highly infectious to the silkworms. A pathogenicities of Cordyceps, Paecillomyces tenuipes, may be highly virulent because of the low resistance or high susceptibility of the silkworms. The silkworm larva infected with Cordyceps formed phialospores on the phialides at the imperfect stage of the genus Cordyceps, But silkworm pupa infected with Cordyceps formed ascospores in the asci at the perfection stage of the genus Cordyceps. The results of analysis of health silkworm pupa and silkworm pupa infected with Cordyceps were obtained that amino acid, fatty acid, and nucleoside were very different.
Inhibitory Effects of an Eicosanoid Biosynthesis Inhibitor, Benzylideneacetone, Against Two Spotted Spider Mite, Tetranychus urticae, and a Bacterial Wilt-causing Pathogen, Ralstonia solanacearum
Park, Ye-Sol ; Kim, Min-Je ; Lee, Geon-Hyung ; Chun, Won-Soo ; Yi, Young-Keun ; Kim, Yong-Gyun ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 185~189
A monoterpenoid compound, benzylideneacetone (BZA), is a metabolite of an entomopathogenic bacterium, Xenorhabdus nematophila. Its primary biological activity is an inhibitor of phospholipase
, which catalyzes the committed step of biosynthesis of various eicosanoids that are critically important to mediate insect immune responses. When BZA was applied to two-spotted spider mite, Tetranychus urticae, it exhibited a dose-dependent mortality in leaf-disc assay. Subsequently BZA was tested against T. urticae infesting apples in a field orchard, in which it showed a significant control efficacy, which was not statistically different with that of a commercial acaricide. BZA also had significant antibacterial activities against three species of plant pathogenic bacteria when it was added to the bacterial cultures, in which it showed the highest inhibitory activity against a bacterial wilt-causing pathogen, Ralstonia solanacearum. The bacterial pathogen caused significant disease symptom to young potato plants. However, BZA significantly suppressed the disease occurrence. This study suggests that BZA can be used to develop a novel crop protectant to control mite and bacterial pathogen.
Persistence and Distribution of Trunk-Injected Abamectin in Pinus thunbergii and Pinus koraiensis Tissues
Lee, Sang-Myeong ; Kim, Dong-Soo ; Kim, Chul-Su ; Cho, Kyu-Seong ; Choo, Ho-Yul ; Lee, Dong-Woon ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 190~196
The residues of abamectin 1.8% EC, resisted for control of pine wood nematode, Bursaphelenchus xylophilus in pine tree were surveyed in tissue of Pinus thunbergii and P. koraiensis after injection of a liquid formulation. Limits of detection of abamectin in tissue of P. thunbergii were
and mean recoveries at
trunk injection were 90.9% and 93.1% respectively in stem and trunk of P. thunbergii. Abamectin 1.8% EC, trunk injected in 15 m height P. thunbergii were detected in all stem (edible part of carrier insect of pine wood nematode, Monochamus alternatus) from 0.29 to
after 150 days injection. Amount of residue of abamectin 1.8% EC in 12.6 cm mean breast height diameter (DBH) P. thunbergii were variable depending on individual trees in natural forest. Amount of residues in lower and middle part of trunk were reduced with the passage of the injection time. In upper part of trunk were detected
on 30 days after injection however
on 15 days after injection and under detection limit on 100 and 180 days after injection in P. thunbergii. Bottom and middle parts of crown were detected
respectively on 180 days after injection in P. thunbergii. Mean residues of abamectin in crown and trunk were
on 170 days after trunk injection in 20 cm DBH and 9 m height P. koraiensis. Mean residues of abamectin in crown and trunk were
on 170 days after trunk injection in 15 cm DBH and 6 m height P. koraiensis.
Toxicological and Electrophysiological Activities of Pyrethroids between Larvae of Diamondback Moth, plutella xylostella and Beet Armyworm, Spodoptera exigua
Ham, Sun-Hee ; Ahn, Hee-Geun ; Yang, Jeong-Oh ; Yoon, Chang-Mann ; Kim, Gil-Hah ;
The Korean Journal of Pesticide Science, volume 13, issue 3, 2009, Pages 197~202
Based on the insecticidal efficacy by insecticide treatment methods, neurophysiological responses were compared with the larvae of diamondback moth (DBM) and beet armyworm (BAW) using pyrethroids working on nervous system. By body spray method, all pyrethroids were showed lower insecticidal activity below 50% on the larvae of DBM and BAW. By leaf dipping method, DBM larvae were showed the insecticidal activity as 100% at 50 ppm deltamethrin, 80.0% at fenvalervate and 63.3% at permethrin. However, BAW larvae were showed lower insecticidal activity as similar as control in all concentration. In order to examine electrophysiological response on nervous system on DBM and BAW larvae when treated three insecticides, we investigated the voltage and reaction degree. The voltage of DBM were responded as high as
in fenvalerate and
in permethrin. However, those of BAW were showed dull responses with small variation of voltage to all three insecticides.