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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Korean Journal of Pesticide Science
Journal Basic Information
Journal DOI :
The Korean Society of Pesticide Science
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Volume & Issues
Volume 12, Issue 4 - Dec 2008
Volume 12, Issue 3 - Sep 2008
Volume 12, Issue 2 - Jun 2008
Volume 12, Issue 1 - Mar 2008
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A Synthesis of Alkylphenyl fluorobenzoate Derivatives and Their Antifungal Activities on Several Phytopathogens
Choi, Won-Sik ; Cha, Kyung-Min ; Kim, Young-Sun ; Jang, Soon-Ho ; Lim, Sang-Ho ; Choi, In-Young ; Kim, Tae-Jun ; Jung, Bong-Jin ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 307~314
Sixty compounds such as alkylphenyl fluorobenzoate esters from thymol(I), 5-isopropyl-3-methylphenol (II), 4-isopropyl-3-methylphenol (III), 2-sec-butylphenol (IV) and 4-sec-butylphenol (V) were synthesized. These derivatives were identified by IR,
-NMR spectrometer and GC/MS. Their in vivo antifungal activities were tested against phytopathogens such as Phytophthora infestans, Botrytis cinerea, Colletotrichum orbiculare and Rhizoctonia solani. As the result, 2-sec-butylphenyl 2,5-difluorobenzoate (IV-6) and 4-sec-butylphenyl 2,5-difluorobenzoate (V-6) showed 90% above antifungal activity against Botrytis cinerea. 2-Isopropyl-5-methylphenyl 2,3,6-trifluorobenzoate (I-11), 2-isopropyl-5-methylphenyl 2,4,5-trifluorobenzoate (I-12), 5-isopropyl-3-methylphenyl 2,3,6-trifluorobenzoate (II-11), 4-isopropyl-3-methylphenyl 2,3,6-trifluorobenzoate (III-11) and 4-isopropyl-3-methylphenyl 2,4,5-trifluorobenzoate (III -12) showed 90% above potent antifungal activity against Colletotrichum orbiculare.
Determination of Cyhalofop-butyl and its Metabolite in Water and Soil by Liquid Chromatography
Hem, Lina ; Choi, Jeong-Heui ; Liu, Xue ; Khay, Sathya ; Shim, Jae-Han ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 315~322
In this study, a simple, effective, and sensitive method has been developed for the quantitative residue analysis of cyhalofop-butyl and its metabolite cyhalofop acid in water and soil when kept under laboratory conditions. The content of cyholofop-butyl and cyhalofop acid in water and soil was analyzed by first purifying the compounds through liquid-liquid extraction and partitioning followed by Silica gel (adsorption) chromatography. Upon the completion of the purification step the residual levels were monitored through high-performance liquid chromatography (HPLC) using a UV absorbance detector. The recoveries of cyhalofop-butyl from three replicates spiked at two different concentrations ranged from 82.5 to 100.0% and from 66.7 to 97.9% in water and soil, respectively. The limit of detection and minimum detection level of cyhalofop-butyl in water and soil was 0.02 ppm and 10 ng, respectively. The recoveries of cyhalofop acid ranged from 80.7 to 104.8% in water and from 76.9 to 98.1 % in soil. The limit of detection of cyhalofop acid was 0.005 ppm in water and 0.01 ppm in soil, while the minimum detection level was 2 ng both in water and soil. The half-live of cyhalofop-butyl was 4.14 and 6.6 days in water and soil, respectively. The method was successfully applied to evaluate cyhalofop-butyl residues in water and soil applied aj. 30% emulsion, oil in water (EW) product.
Monitoring of Pesticide Residues in Special Products
Kim, Mi-Ra ; Na, Mi-Ae ; Jung, Woo-Young ; Kim, Chang-Soo ; Sun, Nam-Kyu ; Seo, Eun-Chae ; Lee, Eun-Mi ; Park, You-Gyoung ; Byun, Jung-Ah ; Eom, Joon-Ho ; Jung, Rae-Seok ; Lee, Jin-Ha ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 323~334
This experiment was carried out to analyze for pesticide residues in 17 different types of the special of geographical indication. We purchased 3 cereal grains, nuts and seeds, 3 fruits, 8 vegetables, mushrooms and other plants (Korean medicines) mainly at the agricultural cooperative's joints markets. Total 209 pesticides including multi-analysed pesticides (204) and single-analysed pesticides (5 ; acephate, methamidophos, monocrotophos, omethoate, vamidothion) were analysed with a GC/MS/MS, an HPLC/UVD (PDA) and a GC/FPD. No. 83 method and single-analysed method (Screening of multi-pesticide residue in the special products of geographical indication) of Korea Food Code was selected for validation in recovery and interferences of matrice. The results were as follows: among the selected 17 the special products, the residual pesticides were detected in 8 types of the special products (40 in 302 samples, detection ratio; 13.2%). All of the samples were not detected over MRLs, but tebuconazole, procymidone and isoprothioran were detected with considerable high frequency. These results could be used as KFDA official methods for the analysis of pesticide residues in foods and reference data will be provided to the related institutions.
Influence of Hexaconazole on Biochemical Constituents of Groundnut
Johnson, I. ; Marimuthu, T. ; Samiyappan, R. ; Cha, Byeong-Jin ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 335~341
In this study, hexaconazole 5% SC, an ergosterol biosynthesis inhibitor, was tested on groundnut with its recommended (
) and higher (
) concentrations under greenhouse conditions in India. Its influence on biochemical constituents of groundnut plants was assessed apart from its disease management potential against late leaf spot caused by Phaeoisariopsis personata (Berk and Curt). Likewise, leaf samples were collected from hexaconazole 5% SC-sprayed plants at different time intervals. Thereafter, their analyses showed considerable differences in the plant constituents, such as chlorophyll, soluble protein, and total phenol contents and the activity of nitrate reductase enzyme. The induction activity of defense-related enzyme, peroxidase, was also analyzed. However, no difference was observed in the isozymic pattern. Moreover, the ground kernels collected from treated plants also showed no difference in the estimated carbohydrate and other constituents.
Thyroid Hormone-like Activity of Metribuzin as a Endocrine Disruptor in Rats and HeLaTRE Cell Culture
You, Are-Sun ; Jeong, Mi-Hye ; Lee, Je-Bong ; Park, Yoen-Ki ; Shin, Jin-Sup ; Park, Kyung-Hun ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 342~350
This study was carried out to investigate the suitability of the pubertal assay and the enhanced TG 407 as methods for detection of endocrine-mediated effects. Thyroid function was also considered. Male and female Sprague-Dawley rats were gavaged daily with 0, 25, 50, 100 mg/kg metribuzin in corn oil during 30 days. The effects of metribuzin on thyroid gland, the genital organs and thyroid hormone were measured in male and female rats. Dose of metribuzin 50 mg/kg/day increased relative weight of testis, prostate, and seminal vesicle in male rats but relative weight of thyroid gland was not significantly different from control group. Dose of metribuzin 25 mg/kg/day decreased relative weight of thyroid gland in female rats. Another purpose of this study was to investigate the effects of endocrine-disruptors as like thyroid hormone in vitro. Luciferase activity was measured to detect reaction of test chemicals and thyroid hormone response elements in HeLaTRE cell. Dose of metribuzin from 1 to 1,000 nM increased to 106-122% of luciferase activity.
Drift and Distribution Properties of Pesticide Spray Solution Applied Aerially by manned-Helicopter
Jin, Yong-Duk ; Lee, Hee-Dong ; Park, Yeon-Ki ; Kim, Jin-Bae ; Kwon, Oh-Kyung ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 351~356
This study was carried out to assess adoptability and environment impacts of ultra low volume (ULV) pesticide spray solutions aerially sprayed by manned-helicopter. Uniformity of the deposited amount in paddy fields was uneven, showing
times differences among surveyed sites. Drifting distance of aerially sprayed droplets from the target area was within 30 m in the wind direction and 20 m in the opposite direction. Most of the aerially sprayed pesticides were deposited in/on rice plants, while those in submerged paddy water and soil were relatively small. The degradation rate of the deposited pesticides was in the decreasing order of rice plants, paddy water and soil. Soil residues of pesticides in the aerially sprayed rice paddy fields after harvest ranged from non-detected to 0.201 mg/kg. However, no pesticides were detected in brown rice and rice straw. No phytotoxic symtoms were observed in rice plants and nearby non-target crops by the sprayed pesticides.
Monitoring of Pesticide Residues in Agricultural Products Collected from Markets in Cheongju and Jeonju
Lee, Eon-Young ; Noh, Hyun-Ho ; Park, Young-Soon ; Kang, Kyung-Won ; Jo, Seong-Yong ; Lee, Seung-Reul ; Park, In-Young ; Kim, Tae-Hwa ; Jin, Yong-Duk ; Kyung, Kee-Sung ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 357~362
In order to survey the residual characteristics of pesticides and assess their safeties in the agricultural products from markets, the agricultural products were purchased from the wholesale and traditional markets in Cheongju and Jeonju and analyzed the pesticide residues in them. No pesticide residues were found in samples from Cheongju, whereas, in case of samples collected from Jeonju, 3 pesticides including chlorothalonil were detected from 5 samples such as eggplant from wholesale market and 3 pesticides including azoxystrobin were found in tomato and grape from traditional market. Pesticide residues were detected from 10.9% of the total samples and detection levels were less than their maximum residue levels. Their estimated daily intakes ranged from 0.00102 to 0.03616% of their acceptable daily intakes, representing residue levels of the pesticides detected were evaluated to be safe.
Possibility of simultaneous control of pine wilt disease and Thecodiplosis japonensis and or Matsucoccus thunbergianae on black pine (Pinus thunbergii) by abamectin and emamectin benzoate
Lee, Sang-Myeong ; Kim, Dong-Soo ; Kim, Chul-Su ; Choo, Ho-Yul ; Lee, Dong-Woon ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 363~367
Abamectin 1.8% EC and emamectin benzoate 2.15% were evaluated the simultaneous control effect of both insect pests on black pine (Pinus thunbergii) against Thecodiplosis japonensis and Matsucoccus thunbergianae. Abamectin 1.8% EC was highly effective against T. japonensis and M thunbergianae, however, emamectin benzoate was highly effective against only M. thunbergianae when abamectin and emamectin benzoate were applied through trunk injection against T. japonensis and M thunbergianae at the rate of 1 ml per cm in diameter of breast height. The rate of gall formation of T. japonensis was 0% at the applied year, but 85% at the following year. However, the rate of gall formation was over 90% at the treatment of emamectin benzoate showing no difference compared with control. Abamectin 1.8% EC and emamectin benzoate 2.15% showed high control efficacy representing 89.1% and 91.4% against M. thunbergiana, respectively.
High Concentration of Sodium Chloride Increases on Survival of Non-pathogenic Erwinia carotovora subsp. carotovora 9-3 during Drying and Storage
Park, Kyoung-Soo ; Kim, Gun-Ju ; Shin, Yun-Ju ; Kim, Sik ; Cha, Jae-Soon ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 368~374
Dry formulation is a limiting step for successful development of microbial bio-pesticides with the antagonistic Gram-negative bacteria because their survival rates are too low during drying and storage. The high concentration of sodium chloride (NaCl) in culture medium that induces osmolyte in bacterial cells is known to increase of survival rate during drying in many Gram-negative bacteria. Effect of NaCl on survival of antagonistic non-pathogenic Erwinia carotovora subsp. carotovora 9-3 (Ecc 9-3) during drying and storage was studied. Growth rate of Ecc 9-3 was not much different up to 0.5 M NaCl in NB while it was lower significantly with 0.7 M NaCl. Survival rates were twice and 3 times higher with 0.5 M NaCl than with no additional NaCl during drying at room temperature and freeze-drying, respectively. Survival rate was also higher with high NaCl in culture medium during storage after drying. It was not much different on storage at
both of drying at room temperature and freeze-drying. However, the survival rate was higher on storage at
with high NaCl concentration. Among the additives tested, lactose affects most to survival rate both of drying at room temperature and freeze-drying, and dextrin influenced significantly to survival rate of drying at room temperature.
Etiology and Chemical Control of Skin Sooty Dapple Disease of Asian Pear
Park, Young-Seob ; Kim, Ki-Chung ; Lee, Jang-Hoon ; Kim, In-Seon ; Choi, Yong-Soo ; Cho, Song-Mi ; Kim, Young-Cheol ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 375~381
A new disease causing skin sooty dapple symptoms on fruits, leaves, and young shoot of Asian pear occurred in Korea. However, no chemical control approaches has been developed to control this disease. To investigate ecological aspects of this disease, we conducted field surveys in the high or low disease occurred orchards. The years with heavy rainfall caused severe occurrence of the skin sooty dapple disease than the years with lower rainfall during all growth stages of pear fruit. Different fruit-wrapping bags did not prevent occurrence of skin sooty dapple disease, and lesion numbers were higher in lower parts of fruit equatorial line inside of fruit-wrapping bags. There is a direct correlation between occurrence of the skin sooty dapple disease and frequency of fungicide application in the orchards. Among the tested commercial fungicides, thiophanate-methyl WP and penconazole WP completely inhibited the growth of the Cladosporium sp. in in vitro studies but little protection was observed in the field following fungicide applications. However, application of lime sulfur combined with the use of fruit-wrapping bags most effectively reduced incidence of the disease in the field. Our results suggest that skin sooty dapple disease could be a serious problem in sustainable organic pear farms and effective control methods for this disease urgently required.
Evaluation of Toxicity of Pesticides against Honeybee (Apis mellitera) and Bumblebee (Bombus terrestris)
Ahn, Ki-Su ; Oh, Mann-Gyun ; Ahn, Hee-Geun ; Yoon, Chang-Mann ; Kim, Gil-Hah ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 382~390
This study was performed to evaluate the acute toxicity and residual toxicity of the 69 kinds of agrochemicals (41 insecticides, 18 fungicides, and 10 acaricides) against honeybee, Apis mellifera and bumblebee, Bombus terrestris. According to the IOBC standard, the toxicity showed below 30% was classified as non-toxic. Among 41 insecticides, five insecticides (acetamiprid, chlorfenapyr, thiacloprid, milbemectin, and buprofezin+amitraz) against the honeybee; eight insecticides (methomyl, thiodicarb, acetamiprid, chlorfenapyr, thiacloprid, abamectin, spino sad, buprofezin+amitraz) against the bumblebee did not show any toxic effect. Therefore, it thought to being safe. Other 18 fungicides and 10 acaricides were safe against the honeybee and bumblebee. In residual toxicity against the honeybee, eight insecticides (dichlorvos, methomyl, imidachlorprid, emamectin benzoate, spinosad, cartap hydrochloride, chlorfenapyr, and endosulfan) among 41 insecticides tested were safe at three days after treatment; however, sixteen insecticides (dimethoate, fenitrothion, fenthion, methidathion, phenthoate, pyraclofos, fenpropathrin, clothianidin, dinotefuran, thiamethoxam, abamectin, acetamiprid+ethofenprox, acetamiprid+indoxacarb, bifenthrin+imidacloprid, ethofenprox+phenthoate, imidacloprid+methiocarb) still remain high toxicity at eleven days after treatment. Against the bumblebee, residual toxicity showed as safe in seven insecticides (dimethoate, methidation, a-cypermethion, ethofenprox, indoxcarb, chlorpyrifos+a-cypennethrin, esfenvalerate+fenitrochion) at three days after treatment; however, eight insecticides (fenitrothion, pyraclofos, clothianidin, fipronil, acetamiprid+ethofenprox, chlorpyrifos+bifenthrin, ethofenprox+phenthoate, imidacloprid+methiocarb) still showed high toxicity at seven days after treatment. From above results, it will be useful information to select insecticides being safe and effective against the honeybee and bumblebee.
Attractive Efficacy of Ipsenol and Ipsdienol against Monochamus saltuarius Gebler (Coleoptera: Cerambycidae)
Ahn, Hee-Geun ; Kim, Min-Ki ; Yang, Jeong-Oh ; Noh, Doo-Jin ; Kang, Shin-Ho ; Kim, Gil-Hah ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 391~396
The pine sawyer, Monochamus saltuarius Gebler (Colepotera: Cerambycidae) was newly known as a vector of pinewood nematode causing the pine wilt disease in Korean white pine (P. koraiensis Siebold & Zucc.) forestry. Recently, it has a serious problem to spread fast and widely throughout Korea by transferring M. saltuarius. For the control of M. saltuarius, this study was investigated the attractants by analyzing from the Korean white pine. Major components of Korean white pine was analyzed as
-pinene and ethanol, and reported as an attractant against Monochamus genus. Ipsenol and ipsdienol, the pheromones of Ips genus known as attractant components of woodboring beetles, were tested to the attractive efficacy against Monochamus saltuarius. The attractive efficacy showed 67.9% of Ipsenol plus ipsdienol and ipsenol, ipsdienol mixed with
-pinene plus ethanol was showed 67.7% and 79.3%, respectively. Especially, ipsdienol with
-pinene and ethanol was shown the high synergy effect, and the attractant effect was higher at M. saltuarius female than male.
Changes of Feeding Behavior of Sweetpotato Whitefly, Bemisia tabaci Correlated with the Residual Effect of Emamectin benzoate and Pyridaben
Kwon, Yun-Hee ; Yang, Jeong-Oh ; Oh, Jeong-Hoon ; Noh, Doo-Jin ; Yoon, Chang-Mann ; Kim, Gil-Hah ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 397~402
This study was performed to investigate the correlation between changes of feeding behavior of Bemisia tabaci and residual effect of two insecticides, emamectin benzoate and pyridaben, using EPG technique. Waveforms such as non-probe time and total duration of phloem phase of B. tabaci were recorded during three hours using EPG. Relationship between non-probe time and the change of residual effect of two insecticides correlated with more pyridaben than emamectin benzoate. In the relationship between phloem phase time and those of residual effect, emamectin benzoate was more correlated than pyridaben. These results show that the change of feeding behavior of B. tabaci is correlated with the change of residual effect of two insecticides.
Selection and Bioactivity of Tank Mix Combinations of Pesticides for Aerial Application
Jin, Yong-Duk ; Lee, Hee-Dong ; Shim, Hong-Sik ; Lee, Sang-Guei ; Kwon, Oh-Kyung ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 403~413
This study was conducted to select excellent tank mix combinations of pesticides for aerial application by manned helicopter. Among 209 pesticide combinations of 3-way tank-mixing for aerial application, a total of 93 recommendable combinations including tricyclazole SC+validamycin-A SL+imidacloprid SL were finally selected for the simultaneous control of key pests on paddy rice such as blast, sheath blight, brown planthopper and moth. The selected combinations were not phytotoxic to rice plants and nearby non-target crops, and excellent in physicochemical properties of ultra low volume (ULV) spray solutions. The efficacies on sheath blight, brown planthoppers and white-backed planthoppers of pesticides sprayed by aerial application were similar to those of pesticides by conventional spraying. Total cost of aerial application in paddy rice was very economical as one fourth level of that of conventional spraying.
Survey of Actual Condition of Management of Persimmon Orchards in Sangju, Gyeongbuk in 2007 and 2008
Lim, Tae-Heon ; Choi, Yong-Hwa ; Song, In-Kyu ; Kim, Kook-Rae ; Lee, Dong-Woon ; Lee, Sang-Myeong ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 414~420
To investigate the actual condition of orchard and pest management of persimmon orchards, a questionnaire was ask to the farmers in major cultivated areas of persimmon and dried persimmon, Sangju, Gyeongbuk in 2007 and 2008. 91.1% of persimmon farmers was over fifties in age and 94.7% of persimmon farmers was cultivated 'Sangjudungshi'. The greatest limiting factor for persimmon production was thought to be disease by the 58.4% of persimmon farmers and the most serious disease was anthracnose by Colletotrichum gloeosporioides. 60.2% of them was answered that the most serious insect pest was scale insects. Obtaining of knowledge or information on pest management depended own experience (37.2%) and 48.7% of answered farmers was decision-marking of pesticides depending on agrochemical market. 54% of persimmon farmers was applied pesticides
times per year. Just 17.7% of them recorded the diary of pesticide application. The greatest problem for management of pest in persimmon orchard was lack of knowledge of pest (60.2%) and farmers considered increasing cost for pest management as the greatest problem with 52.2% in proportion. 66.4% of farmers was mixed cultivation with soybean (37.7%) and hot pepper (26.1%) in persimmon orchard. 44.2% among answered farmers mixed cultivation of persimmon with production of dried persimmon and 54.5% of farmers considered lack of labor as the greatest problem in production of dried persimmon.
Enhancement of Physical Properties and Efficacy of Pesticide Spray Solution by Addition of Adjuvants
Jin, Yong-Duk ; Lee, Hee-Dong ; You, Oh-Jong ; Kim, Jin-Bae ; Kwon, Oh-Kyung ;
The Korean Journal of Pesticide Science, volume 12, issue 4, 2008, Pages 421~428
This study was carried out to elucidate the effects of adjuvants on physicochemical properties and pest control efficacy of pesticide spray solution. Spray droplet sizes of pesticide solution decreased by addition of adjuvants even though its effect varied according to the pesticides. The adhesive effect of pesticides sprayed on target crops by addition of adjuvants varied according to the properties, the application methods, and the spray volume of pesticides. Wash-off of the deposited amount of active ingredients of the solution of tricyclazole WP and fenobucarb EC by simulated rainfall after spraying on rice plants dramatically reduced by adding adjuvants. The retained amount of active ingredients of the pesticides were
times higher than those without adjuvants when subjected to simulated rainfall 6 hours after spraying. Addition of adjuvants to the propanil EC spray solution enhanced the control efficacy in barnyard grass, Echinocloa crus-galli Beauv. by
, which showed a potential to reduce pesticide use.