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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Korean Journal of Pesticide Science
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Journal DOI :
The Korean Society of Pesticide Science
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Volume & Issues
Volume 20, Issue 2 - Jun 2016
Volume 20, Issue 1 - Mar 2016
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Deposit Amounts of Dithianone on Citrus leaves by Different Spray Methods
Jeon, Hye-Won ; Hong, Su-Myeong ; Hyun, Jae-Wook ; Hwang, Rok-Yeon ; Kwon, Hye-Young ; Kim, Taek-Kyum ; Cho, Nam-Jun ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 1~6
DOI : 10.7585/kjps.2016.20.1.1
In order to obtain efficient control effect of the pesticide, it is important to ensure uniform adhesion to the desired plant parts at the right time. Pesticide spray method (application technology) is an important factor affecting the efficacy and crops persistent expression. The aim of this study was to develop an efficient system to investigate the coating weight distribution of citrus leaves due to the difference between the nozzle and spray sprinkler system using dithianon used in citrus scab. Other An, engine type sprayer was used as the control. Speed sprayer and different sprinklers were wsed to way the deposit amounts of dithianon on citrus leaves. The test was conducted at the National Institute of Horticultural Herbal Science Citrus Research Station, located in the circle citrus Jeju Island. In order to examine whether the citrus orchard spray and the evenl on the whole, dithianon (43% flowable 1000-fold dilution) was sprayed, filter paper and leaves were analyzed by the height as top, middle, bottom. Speed sprayer the was most effective on depositing at the middle position, of the leaves. All other sprays the leaces except the dry mist sprinkler were not effective enough to deposit on the back sides. To achieve more deposits on the high position leaves, an improve ment in the nozzle and an efficient power system of sprayer were needed.
Biodegradation Pathways of Polychlorinated Biphenyls by Soil Fungus Aspergillus niger
Kim, Chang-Su ; Lim, Do-Hyung ; Keum, Young-Soo ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 7~13
DOI : 10.7585/kjps.2016.20.1.7
As of many organochlorine pesticides, polychlorinated biphenyls are ubiquitous organic contaminants, which can be found in the most environmental matrices. Their toxic effects include endocrinedisrupting activity. Most researches with these toxicants performed with mixtures of congeners, namely Aroclor and related study has been done in complex environmental matrix, rather than single biosystems or pure congeners. 5 congeners were synthesized and their fates in pure microbial culture (Aspergillus niger) were determined in this study. Among biphenyl and synthetic congeners, biphenyl, PCB-1 (2-chlorobiphenyl), and PCB-3 (4-chlorobiphenyl) were rapidly transformed to hydrophilic metabolites, followed by PCB-38 (3,4,5-trichlorobiphenyl), while the degradation of PCB-126 (3,3',4,4',5-pentachlorobiphenyl) was not observed. The amounts of transformation for biphenyl, PCB-1, PCB-3, and PCB-38 were 65, 38, 52, and 2% respectively. The major metabolites of the above congeners were identified as mono- and di-hydroxy biphenyls, which are known to give adverse endocrinological effects.
Meta-Analytic Approach to the Effects of Food Processing Treatment on Pesticide Residues in Agricultural Products
Kim, Nam Hoon ; Park, Kyung Ai ; Jung, So Young ; Jo, Sung Ae ; Kim, Yun Hee ; Park, Hae Won ; Lee, Jeong Mi ; Lee, Sang Mi ; Yu, In Sil ; Jung, Kweon ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 14~22
DOI : 10.7585/kjps.2016.20.1.14
A trial of combining and quantifying the effects of food processing on various pesticides was carried out using a meta-analysis. In this study, weighted mean response ratios and confidence intervals about the reduction of pesticide residue levels in fruits and vegetables treated with various food processing techniques were calculated using a statistical tool of meta-analysis. The weighted mean response ratios for tap water washing, peeling, blanching (boiling) and oven drying were 0.52, 0.14, 0.34 and 0.46, respectively. Among the food processing methods, peeling showed the greatest effect on the reduction of pesticide residues. Pearsons's correlation coefficient (r=0.624) between weighted mean response ratios and octanolwater partition coefficients (
) for twelve pesticides processed with tap water washing was confirmed as having a positive correlation in the range of significance level of 0.05 (p=0.03). This means that a pesticide having the higher value of
was observed as showing a higher weighted mean response ratio. These results could be used effectively as a reference data for processing factor in risk assessment and as an information for consumers on how to reduce pesticide residues in agricultural products.
Monitoring and Safety Assessment of Pesticide Residues in Ginseng (Panax ginseng C.A. Meyer) from Traditional Markets
Noh, Hyun Ho ; Lee, Jae Yun ; Park, Hyo Kyoung ; Jeong, Hye Rim ; Lee, Jeong Woo ; Jin, Me Jee ; Choi, Hwang ; Yun, Sang Soon ; Kyung, Kee Sung ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 23~29
DOI : 10.7585/kjps.2016.20.1.23
This study was carried out to survey residual characteristics of pesticide in fresh ginsengs collected from 45 markets at 15 regions in Korea using multiresidue analysis with a GC-MS/MS and an LC-MS/MS. After residue analysis was performed, the pesticides detected from ginsengs were quantitated using their analytical methods validated by recovery tests with a GC-ECD/NPD. As a results of analysis of pesticide residue, cypermethrin, fenitrothion, fludioxonil, thifluzamide, and tolclofos-methyl were detected from 16 samples among 45 samples in total, indicating detection rate was 35.6%. Tolclofos-methyl was found to be highest in detection frequency in ginseng. Fenitrothion that has not established maximum residue limit and pre-harvest interval for ginseng was detected. The amounts of all pesticides detected were less than their MRLs. Ratios of estimated daily intakes to acceptable daily intakes of the detected pesticides in ginseng were found to be from 0.03 to 16.67%.
Chemical Compositions and Nematicidal Activities of Essential Oils on Meloidogyne hapla (Nematoda: Tylenchida) Under Laboratory Conditions
Jeon, Ju-Hyun ; Ko, Hyoung-Rai ; Kim, Se-Jong ; Lee, Jae-Kook ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 30~34
DOI : 10.7585/kjps.2016.20.1.30
To evaluate the efficacy of natural nematicides for the control of root-knot nematode in strawberry greenhouses, commercial essential oils were examined by 24-well culture plate bioassay for their nematicidal activities against second-stage juveniles and eggs of Meloidogyne hapla. Based on the mortality of M. hapla juveniles at a concentration of
, the most active essential oil was Alpinia galanga (100%), followed by Carum carbi (22.3%), Eugenia caryophyllata (9.4%), Cinnamonum zeylanicum (7.2%), Mentha pulegium (2.4%), and Foeniculum vulgare (2.1%). Moreover, A. galanga significantly reduced hatching at 7, 14, and 21 days after treatment. The volatile constituents identified in the A. galangal oil were methyl cinnamate (87.4%), 1,8-cineole (4.4%),
-pinene (2.2%), and p-cymene (1.1%), as major constituents. Results of this study show that A. galangal essential oil and its major constituents may serve as an environmental friendly agent of a promising natural nematicide to control Meloidogyne spp.
Disease Severity of Angular Leaf Spot Disease by Different Inoculation Method and Eco-Friendly Control Efficacy in Strawberry.
Kim, Da-Ran ; Gang, Gun-hye ; Cho, Hyun-ji ; Yoon, Hae-Suk ; Myoung, In Sik ; kwak, Youn-Sig ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 35~40
DOI : 10.7585/kjps.2016.20.1.35
Recently, bacterial angular leaf spot disease, caused by Xanthomonas fragariae, causes severe damage in strawberry production and its' export to other countries, since the pathogen has been classified as an A2 quarantine pathogen. Typical the Angular Leaf Spot (ALS) disease represent that water-soaked angular spots symptoms, bacteria ooze exudate under relatively high humidity condition and later the spot become reddish brown on the leaf surface. The pathogen disseminated by irrigation water, infected mother plant and farmer's hand. In this study, we reported that rubbing inoculation method showed more effective in the pathogen dissemination than infiltration with needles, regardless the strawberry cultivars. Additionally, Dichloroisocyanurate (NaDCC) treatment in commercial strawberry fields provided reliable efficiency to reduce the bacterial angular leaf spot disease incidency and severity.
Analysis of Control Efficacy of Bacterial Fruit Blotch Caused by Acidovorax avenae subsp. citrulli in Recent Issues
Back, Chang-Gi ; Lee, Sung-Chan ; Park, Mi-Jeoung ; Han, Kyung-Sook ; Kim, Hong-Ki ; Lee, Yoon-Su ; Park, Jong-Han ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 41~46
DOI : 10.7585/kjps.2016.20.1.41
Bacterial fruit blotch (BFB) caused by Acidovorax avenae subsp. citrulli is defective disease to watermelon cultivated areas. To control of BFB, we investigated control efficiency to use commercial antibacterial pesticides. Growth inhibition zone on medium were formed as oxolinic acid WP and oxytetracycline WP. Control efficacy of four anti-bacterial pesticides on seed and seedling stage were performed. As a results, oxytetracyclin WP is shown over 90% control efficiency on seed and acibenzolar-S-methyl + mancozeb WP shown over 90% control efficiency on seedling stage Hot-water treatment method could be possible to reduced infection rate on seed. The conditions of hot-water treatments are
on 20~30 minutes. These results suggested that the methods were helpful watermelon seedling nursery to control of the bacterial fruit blotch by A. avenae subsp. citrulli.
Control Effect of Coffee Ground Compost and Velvet bean Against Root-Knot Nematode, Meloidogyne incognita in Pumpkin
Kim, Min-Jeong ; Shim, Chang-Ki ; Kim, Yong-Ki ; Hong, Sung-Jun ; Park, Jong-Ho ; Han, Eun-Jung ; Huh, Chang-Seok ; Ryu, Young-Hyun ; Jee, Hyeong-Jin ; Kim, Seuk-Chul ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 47~55
DOI : 10.7585/kjps.2016.20.1.47
The purpose of this study was to control root-knot nematode, Meloidogyne incognita on pumpkin seedling with 10%, 20% coffee ground compost and 1% plant velvet bean powder (plain skin bean, leopard skin bean, hole plant, bean pod). Among the root-knot nematode insecticide treatments, the velvet bean plant powder was the highest mortality rate with 83.2% in greenhouse condition. In addition, the root-knot nematode second juvenile mortality significantly increased with the lapse of processing time for each concentration of leopard skin velvet bean extract in vivo. After 24 hours, the mortality rate of root-knot nematode showed the highest at 1.2% and 2.4% of leopard skin velvet bean extract. The growth promoting effect of seedlings pumpkin, 20% of coffee ground compost treatments inhibited the growth of pumpkin seedlings and 1% the tiger pattern velvet beans powder was the most to promote the growth of pumpkin seedlings. However, the results indicated that the organic materials of velvet beans and coffee ground compost are expected to be able to effectively control the root-knot nematode and further studies will be needed for the concentration and application methods.
Nematicidal Activity of Eclipta prostrata Extract and Terthiophene against Pine Wood Nematode, Bursaphelenchus xylophilus
Shin, Jin Hee ; Kwon, OhGyeong ; Lee, Chae Min ; Lee, Sang Myeong ; Choi, Young Hwa ; Kim, Jin Ho ; Kim, Young Sub ; Lee, Dong Woon ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 56~65
DOI : 10.7585/kjps.2016.20.1.56
Pine wood nematode, Bursaphlenchus xylophilus is a fatal damaging pest, infecting pinewood trees and is one of the serious forest pest in Korea. Trunk injection is one of the most effective method to protect the live pine trees from nematode infection. The aim of this research was to reveal the efficacy of the nematicidal materials from 46 Kyrgyzstan, 88 Vietnam plant materials and 21 active materials (
-thujaplicin, cinnamaldehyde, eugenol, emodin, geraniol, limonone, methyl palmitate, matrine, myrcene, methyl gallate, nicotine, quassin, resveratrol, rotenone, thymol, thujaplicin, terthiophene, tuberstemonine,
-terpinene) isolated from plants for using as trunk injection agents. Eclipta prostrata extract was highly effective against pine wood nematode in plant extracts and terthiophene has the best nematicidal activity from active materials isolated from plants. Foliar spray of terthiophene on Japanese black pine (Pinus thunbergii) tree reduced proliferation of inoculated pine wood nematode at 22 days after treatment, however no efficacy was found over 22 days. Eclipta prostrata extract and terthiophene can be used as nematicide for further nematicidal efficacy test against any other plant parasitic nematodes and trunk injection efficacy against pine wood nematode.
Susceptibility of the Predatory Mite, Phytoseiulus persimilis (Acari: Phytoseiidae) to Several Insecticides
Kim, Moo Sung ; Kim, Sang Soo ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 66~71
DOI : 10.7585/kjps.2016.20.1.66
Susceptibility of the predatory mite, Phytoseiulus persimilis to 8 insecticides was evaluated. In treatments with insecticides tested, 78-92% of adult female predators survived after 168 hrs after treatment. Adult female predators treated with insecticides tested produced 62.6-93.4% as many eggs as did control females and eclosion of eggs deposited by treated predators was not affected. Moreover, hatch percentage of P. persimilis eggs and survival of nymphs were not seriously affected by exposure to the insecticides tested. Immatures of P. persimilis survived on the leaf disc treated with insecticides tested and 98-100% of immature predators reached adulthood. Based on the results, insecticides tested are expected to be promising candidates for use in integrated pest management program with P. persimilis.
Changed in Feeding Behavior of Cacopsylla pyricola Foerster (Hemiptera: Psyllidae) and Activities of Several Insecticides
Park, Min-Woo ; Kwon, Hay-Ri ; Yu, Yong-Man ; Youn, Young-Nam ;
The Korean Journal of Pesticide Science, volume 20, issue 1, 2016, Pages 72~81
DOI : 10.7585/kjps.2016.20.1.72
Feeding behaviors of the pear psylla, Cacopsylla pyricola, and their changing feeding behaviors were recorded and analyzed with an electrical penetration graph (EPG) analysis against 5 insecticides. And their mortality against insecticides were carried out in the laboratory. General feeding behavior patterns of C. pyricola were changed by insecticide treatments. Especially, the type and frequency of waveforms differently occurred depending on a sort of insecticides treated. Total duration of transition to waveform PE1 and phloem ingestion (waveform PE2) were significantly different between treatment and non-treatment of insecticides. When 5 different insecticides were treated on pear leaves, difference of feeding patterns were recorded. In case of treatment of benfuracarb, total duration of non-probes (waveform Np) was appeared higher than any other insecticide. However, when flonicamid and deltamethrin were treatment, total duration of stylet penetration (waveform PA) and xylem ingestion (waveform PG) were appeared higher than other insecticide, respectively. As results feeding behaviour of C. pyricola after treated insecticides with time-based consumed rate of C. pyricola, the rate of non-probe (waveform Np) was longer than start penetration (waveform PA), penetration and ingestion in parenchyma cells (waveform PC1+PC2), ingestion at phloem (waveform PD+PE1+PE2) and xylem (waveform PG). As result of direct spray treatment to C. pyricola, mortality of C. pyricola against imidacloprid was higher than any other insecticide on 24 hours after treatment. However, all of insecticides showed 100% mortality of after 48 hours. On the other hand, when 5 insecticides sprayed on the pear leaves and then C. pyricola located on the treated leaves, benfuracarb showed the most toxicity against C. pyricola among insecticides. These result was consistent with the EPG results that showed relatively longer total duration time of waveform Np (non-probes) by benfuracarb treatment.