Go to the main menu
Skip to content
Go to bottom
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
Collembolan Species in Environmental Studies
Park, Eun-Kee ; Lee, Sung-Eun ; Lee, Hoi-Seon ; Kim, Jang-Eok ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 1~10
Some phenomena in which insects can demonstrate environmental changes by xenobiotics are easily and simply evaluated. On this regard, general guidelines for environmental studies using insects as biomarkers which determine the effects of such changes are suggested. Insects include three-quaters of all living animal species. This diversity comprises many closely related species which may respond sole to environmental changes by xenobiotics. Insects have been used for assessing adverse effects of environmental changes by xenobiotics, especially pesticides. Collembolan species are widely used as physiological and behavioral biomarkers for the assessment of adverse effects caused by pesticides on soil environment. This review aims to evaluate tile possible use of Korean Collembolan species based upon their response to environmental changes in Korean soil mainly caused by pesticides for crop protection.
Effects of insect growth regulators(IGRs) on vitellogenesis in insect
Lee, Hee-Kwon ; Lee, Jong-Jin ; Kim, Moo-Key ; Lee, Hoi-Seon ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 11~19
This review discusses the effects and roles of insect hormones and insect growth regulators (IGRs) on vitellogenesis in adult insects. Insect vitellogenesis is regulated by hormones such as juvenile hormone (JH), ecdysteroids, and neurosecretory hormones (ovaryecdysteroidogenic hormone : OEH) released by neurosecretory cells, diet, and other elements(male specific protein of sperm fluid). In the fat bodies, the vitellogenins are synthesized by the stimulation of JH released by corpus allatum (CA) and ecdysteroids produced by follicle cells with the ovary in most insects. Furthermore, vitellogenins are released into the hemolymph, transported to the ovarioles by carrier protein, and incorporated into oocytes for the developing ovary. Of IGRs, juvenile hormone and its mimics such as methoprene and pyriproxifen appear to have pharmacological effects such as membrane lysis, destruction of salivary grand and midgut epithlial cells, fat body cells, and ovarian tissue, and also anti-juvenile hormone such as precocenes I and II appear to have specific cytotoxicity such as inhibition of corpus allatum and oocytes development. These results suggest that IGRs may be useful as agents for integrated pest management.
Synthesis and quantative structure-activity relationships on the antifungal activity of 3-phenylisoxazol and 3-phenyl-2,5-dihydro-5-isoxazolone derivatives
Sung, Nack-Do ; Yu, Seong-Jae ; Lee, Hee-Chul ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 20~26
A series of new 2-benzoyl-3-phenyl-2,5-dihydroisoxazol-5-one, (A) and 3-phenyl-5-phenylcarbonyl-oxyisoxazole, (B) derivatives as substrates were synthesized and their quantitative structure-activity relationships (QSAR) analyses between the antifungal activities (
) and physicochemical parameters of substituents onl the benzoyl group against resistant (RPC:95CC7303) and sensitive (SPC:95CC7105) Phytophthora blight (Phytophthora capsici,) were studied. The synthetic yield (%) and antifungal activities of (A) were higher than (B) and selectivities between the fungi were not showed. From the basis on the Hansch-Fujita analyses, the optimum width values (
) of the substituents on the benzoyl group were important factor in determining fungicidal activity against the two fungi. Influence of the substituents as electron withdrawing group on the fungicidal activity against RPC, but not for SPC. And tile bromo- and acetyl-substituents were contributed to higher antifungal activity against RPC and SPC from the results of Free-Wilson analyses.
Toxicity of various fruit tree extracts to five agricultural and four stored-product anthropod pests
Lee, Sang-Guei ; Park, Byeoung-Soo ; Lee, Sung-Eun ; Son, Jae-Gwon ; Song, Cheol ; Lee, Hoi-Seon ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 27~32
Methanol extracts from 43 materials of 17 fruit trees were tested for their insecticidal activities toward five agricultural and four stored-product anthropod pests. Efficacy varied with insect species, plant species, and tissue sampled. At a concentration of 2,500 ppm, strong activity was observed with extracts of Chaenomeles sinensis and Punica granatum seeds against Myzus persicae adult females, Vitis vinifera seeds against Nilaparvata lugens adults, Citrus junos, Citrus paradisi, Cucumis melo Linne var. reticulatus, Diospyros kaki, Malus pumila var. dulcissima, Prunug persica, and V. vinifera seeds against Plutella xylostella, Citrus sinensis seeds against Spedoptera litura larvae, and Ch. sinensis and V. vinifera against Tetranychus urticae adults. Against four stored-product insect pests at 50 ppm, seed extracts of Ch. sinensis and V. vinifera against Sitophilus oryzae adults, and Ch. sinensis, C. junos, D. kaki, and V. vinifera against Callosobruchus chinensis adults gave over 80% mortality. Extracts of all samples exhibited little and no activity against Lasioderma serricorne adults and Plodia interpunctella larvae.
Use of Pythium myriotylum MD2 to Control Weeds in Rice Paddy Fields
Choi, Gyung-Ja ; Hwang, In-Taek ; Choi, Yong-Ho ; Lee, Byung-Hoi ; Kim, Heung-Tae ; Kim, Jin-Cheol ; Lee, Seon-Woo ; Kim, Jin-Won ; Cho, Kwang-Yun ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 33~39
An isolate of the indigenous fungus Pythium myriotylum was isolated from Monochoria vaginalis in Yusung, Korea in year 2000 and evaluated potential as a biocontrol agent in laboratory and greenhouse. P. myriotylum MD2 grew in a wide range of temperature regimes and the optimal growth temperature was
. The fungus was highly pathogenic to Monochoria vaginalis at 30 to
. Several weeds such as Rotala, indica, Lindernia procumbens, Ludwigia prostrata, Cyperus difformis, Scirpus juncoides, Aneilema keisak were also susceptible to the fungus, but Echinochloa crus-galli was not. The fungus affected the growth of rice seed germinated, but not to rice seedlings of 1- to 3-leaf stage. A total of 12 rice cultivars (3- to 4-leaf stage) tested showed no disease symptoms when inoculated with the fungus. Eleven crops, including Chinese cabbage, corn, soybean except wheat were immune to the infection of the fungi. These data suggest that P. myriotylum MD2 has a potential as a mycoherbicide to control weeds in paddy fields.
Survey on Pesticide Usage in Fruit Crops for the Development of Pesticide Use Indicator
Kwon, Oh-Kyung ; Hong, Su-Myeong ; Choi, Dal-Soon ; Park, Chan-Won ; Song, Byeong-Hun ; Ryu, Gap-Hee ; Oh, Byung-Youl ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 40~44
Pesticide actual usage in fruit crop cultivation was surveyed, and usage trends of individual pesticides were evaluated to provide data for the development of indicators of environmental impact. The amount of pesticide used for fruit crops indicated the order of fungicide>insecticide>herbicide unlike the case of paddy rice. The fungicide rate of total usage was 72% in apple cultivation. Top ranking fungicides used on fruits were Mancozeb, Propineb, Thiophanate-methyl and the main insecticides were Mancozeb, Propineb, Thiophanate-methyl. The usuage by formulation types showed the order of WP>EC>SL>SC>SP>WG. Pesticide usage (a.i.) per hectare by different fruits was citrus 48.6kg, apple 27.1kg, pear 18.6kg, persimmon 17.5kg, peach 11.3kg and grape 9.2kg. Comparison of pesticide usage (a.i.,kg/ha) in some fruit crops between Korea and USA indicated that more pesticides were used for citrus, pear and peach in USA than Korea while more pesticides were used in Korea than USA for apple.
Survey on Pest Management Practice and Scheme of Increasing Income in Sweet Persimmon Farms in Korea
Lee, Dong-Woon ; Lee, Seong-Wook ; Park, Chung-Gyoo ; Choo, Ho-Yul ; Shin, Chang-Hoon ; Lee, Gyoo-Chul ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 45~49
As a series of studies to develop pest management system for sweet persimmon production matched with the quarantine criterion of sweet persimmon-imported county, a survey was conducted by questionnaire on pest management practice and scheme of increasing income in sweet persimmon farms in Korea. Above 80% of sweet persimmon farmers was over fifties in age. The greatest limiting factor for sweet persimmon production was thought to be disease by the farmers. Percentage of farmers who answered that the most important pest is anthracnose cause by Gloeosporium kaki, and stink bugs was 64.6% and 73.5%, respectively. In particular, the farmers did not consider Dichocrocis punctiferalis, a main targer insect for quarantine in USA, as serious problem. Obtaining information on pest management practice or decision-making on both selection of pesticide and time of pesticide application depended highly on their own experience with the highest proportion. Eight to nine times of pesticide applications a year was highest among farms with 56.6%. More than 80% of farmers recorded the diary of pesticide application. farmers considered increasing cost for pest management as the greatest problem with 35.4% in proportion, and 34.5% of farmers pointed out that increase in export is essential for increasing farm income with highest proportion.
In vitro selection of fungicides for control of leaf blight of sweet persimmon tree caused by Pestalotiopsis theae
Chang, T.H. ; Lim, T.H. ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 50~56
In vitro experiments, several fungicides including prochloraz, tebuconazole, fluazinam, fludioxonil, and iminoctadine-triacetate showed more than 85% inhibition of mycelial growth of Pestalotiopsis theae (SP-3). Dichlofluanid and chlorothalonil inhibited mycelial growth at the rate of 10 and 33%, however benomyl did not inhibit mycelial growth of the fungus. Minimum inhibitory concentration(MICs) of iminictadine-triacetate on the mycelial growth of SP-3 isolate was
, but that of P. theae
752002 and P. longiseta
. MIC of benomyl, chlorothalonil, dichlorofluanid was
, and that of fludioxonil, fluazinam, tebuconazole was
. Conidial germination was inhibited more than 80% in tile medium which contained
of prochloraz, tebuconazole, fluazinam, fludioxonil, and minoctadine-triacetate. Control values of benomyl, chlorothalonil and dichlofluanid were 40, 60 and 30%, respectively. The controlling effect of iminoctadine-triacetate (
) aganist P. theae (SP-3) in leaf disc test was more than 93%, but benomyl and dichlofluanid could not control leaf blight disease caused by P. theae (SP-3). Tebuconazole, fluazinam, fludioxonil, and iminoctadine-triacetate showed more than 94% of protective and curative effect of leaf blight of sweet persimmon, while, benomyl and dichlofluanid did not show any control effect of the disease.
Acute toxicity response caused by mixture or tank mix of several insecticides
Lee, Je-Bong ; Jeong, Mi-Hye ; Sung, Ha-Jung ; Lee, Hae-Keun ; Yang, Jae-Sul ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 57~61
Tank mixing application of pesticides has been used to reduce labor and to control wide spectrum of pests, but it may cause significant pesticide poisoning on human and animals due to carelessness. The toxic response of pesticides for the tank mixtures and mixtures was investigated to determine acute toxicity and enzymatic change using experimental animals. Acute oral toxicity and acute dermal toxicity were tested by RDA test guideline. The
was calculated by probit analysis method and cholinesterase was measured with automatic analyzer. The toxicities were generally higher than estimated toxicities in tank mixing and mixture. Serum cholinesterase activity was inhibited more than expected at the dose levels of 1/5, 1/10 and 1/20 of
. Therefore, the results of this study showed that acute toxicity caused by the pesticide mixtures should be considered before the tank mixing method is applied.
Safety Evaluation in Mice of Cereals Infected with Fusarium graninearum
Lee, Je-Bong ; Jeong, Mi-Hye ; Sung, Ha-Jung ; Lee, Hae-Keun ; Oh, Byung-Youl ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 62~67
In order to investigate the harmful effects of Fusarium, producing mycotoxins, contaminated cereals, two months feeding study was carried out in SPF-ICR mice. Mice diets were incorporated with 30% Fusarium infected wheat, nepal barley or barley. The wheat was processed to flour. The nepal barley and barley were polished by 68% and 58%, respectively. The cereal incorporating amount in mice diet were 0, 10, 30 and 50% for each processed cereal. Five week-old mice were fed with the prepared diet for 2 months. The effects of Fusarium contaminated cereals on the mice were observed after the feeding. The rates of body weight gain, diet and water consumption were not changed. There were no significant changes on hematology, blood biochemistry, gross and histopathological evaluation, organ weights in all treatment groups. These results suggest that the diets have no deleterious effects to ICR mice.
Synthesis and herbicidal activities of 2-(5-Propargyloxyphenyl)-4,5,6,7-tetrahydro-2H-indazole and their related derivatives
Jeon, Dong-Ju ; Park, Kwaun-Yong ; Kim, Young-Mi ; Kim, Hyoung-Rae ; Song, Jong-Hwan ; Hwang, In-Taek ; Ryu, Eung-K. ;
The Korean Journal of Pesticide Science, volume 5, issue 4, 2001, Pages 68~71
Of the cyclic imide type compounds, S-275 was known to exhibit a potent herbicidal effects. We have designed and synthesized the compounds having diverse subsutuents in place of the chlorine group of bicyclic 4,5,6,7-tetrahydroindazole part of S-275. Their herbicidal activities were studied under flooded paddy conditions. The results showed that the most compounds gave relatively weak herbicidal activities, whereas tile compound substituted with methylthio group showed potent herbicidal effects against paddy weeds at a rate of 0.015 kg/ha and improved tolerance on rice compared to S-275.