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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean journal of applied entomology
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Journal DOI :
Korean Society of Applied Entomology
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Volume & Issues
Volume 35, Issue 4 - Dec 1996
Volume 35, Issue 3 - Sep 1996
Volume 35, Issue 2 - Jun 1996
Volume 35, Issue 1 - Mar 1996
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Notes on some Encyrtidae (Hymenoptera, Chalcidoidea) form Korean Peninsula
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 95~100
The article contains a list with comments of fifteen species of economically important family Encyrtidae known from Korean peninsula. Of these, four species, Cerchysius subplanus (Dalman), Copidosoma floridanum (Ashmead), Homalotylus flaminius (Dalman) and Prionomitus tiliaris (Dalman), were collected in the North Korea by Hungarian entomologists. Three species, Coccidencyrtus steinbergi Tshumakova et Trjapitzin, Neodiscodes sp. and Thomsonbca shutovae (Trjapitzin), were recorded from the North Korea by Russian specialists.
Classification of the genus Pterostichus Bonelli From Korea (Coleoptera: Harpalidae) III. A new species of the subgenus Phaenoraphis Tschitscherine
Park, Jong-Kyun ; Kwon, Youg-Jung ;
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 101~103
The pterostichid ground beetles of the subgenus Phaenoraphis TschitschQine from Korea are revised here. A new species, Pterostichus peninsularis sp. nov., is described. Thus, totally two species of the subgenus are known to Korean fauna. The identification key and distribution data for each species are provided.
Systematic Study of the Mesochorinae(Hymenoptera: Ichneumonidae) from the Eastern Palearctic Region III. - Morphometric Analysis of Astiphromma jezoense Uchida -
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 104~113
In order to clarify the interspecific variation of Astiphrom jezoense, a morphometric analysis was performed for seven populations using PCA (principle component analysis) and discriminant analysis. As a result of PCA, 25 quantitative characters are grouped into four factors. The characteristics on legs are especially important components both in male and in female. Morphometric analysis indicate that considerable morphological gap is correlated with geographical habitat. Important discriminant characters are MOD (maximum ocellar distance), Fn (first tergite length) in female and MSL (malar space length) in male.
Description of Three New Species of Dichomeris H bner (Lepidoptera, Gelechiidas) from Korea and Russian Far East
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 114~118
Three new species of the genus Dichomeris; bulawskii sp. nov., lutilinea sp. nov. and synergastis sp. nov. are described from Korea and Russian Far East, with illustrations of genitalia.
Modeling Temperature-Dependent Development and Hatch of Overwintered Eggs of Pseudococcus comstodki (Homoptera:Pseudococcidae)
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 119~125
Temperature-dependent development study for overwintered eggs of Pseudococcus comstocki (Kuwana) wasconducted to develop a forecasting model for egg hatch date. Hatch times of overwintered eggs were comparedat five constant temperatures (10, 15, 20, 25, 27
C) and different collection dates. A nonlinear, four-parameterdevelopmental model with high temperature inhibition accurately described (R2=0.9948) mean developmentalrates of all temperatures. Variation in developmental times was modeled(~~=0.972w9)it h a cumulative Weibullfunction. Least-squares linear regression (rate=O.O06358[Temp.]-0.07566)d escribed development in the linearregion (15-25
C) of the development curve. The low development threshold temperature was estimated 11.9"Cand 154.14 degree-days were required for complete development. The linear degree-day model (thermal summation)and rate summation model (Wagner et al. 1985) were validated using field phenology data. In degreedaymodels, mean-minus-base method, sine wave method, and rectangle method were used in estimation of dailythermal units. Mean-minus-base method was 18 to 28d late, sine wave method was 11 to 14d late, rectanglemethod was 3 to 5d late, and rate summation model was 2 to 3d late in predicting 50% hatch of overwinteredeggs. hatch of overwintered eggs.
Functional response and suppression of prey population if Amblyseius womersleyi Schicha(Acarina:Phytoseiidae) to Tetranychus Kanzawai Kishi-da(Acarina: Tetranychidae)
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 126~131
These experiments were conducted in the laboratory conditions to determine the prey consumption of a predaciousphytoseiid mite, Amblyseius womersleyi Schicha, and its ability to regulate the population of tea redspider mite, Tetranychus kanzawai Kishida. The functional response curve of the adult A. womersleyi to thedensity of eggs, larvae, and nymphs of T. kanzawai indicated Holling's Type 11: the consumption of prey bythe adult A. womersleyi increased with the prey density but the consumption rate decreased. The critical initialratio to suppress the prey population by the predator seemed to be 32:l @rey:predator) at 25"C, and 16:l at20
C on kidney bean plant. The predator could not regulate any initial ratio of the prey population at 15
Occurrence of Major Rice Insect Pests at Different Transplanting Times and Fertilizer Levels in Paddy Field
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 132~136
These studies were carried out to investigate the occurrence of rice insect pests related to different transplanting times and N-P-K-fertilizer levels of paddy field in Southern region of Korea. The population densities of brown planthopper (BPH: Nilaparvata lugens Stal), whitebacked planthopper (WBPH: Sogatella furcifera Horvath), small brown planthopper (SBPH: Laodelphax striatellus Fallen), green rice leafhopper (GRLH: Nephotettix cincticeps Uhler), rice stem maggot (RSM: Chlorops oryzae Matsumura), striped rice borer (SRB: Chilo suppressalis Walker), and rice leaffolder (RLF: Cnaphalocrocis medinalis Guenee) were affected more by transplanting time than the fertilizer levels. The later transplanting time induced the higher population densities of BPH, WBPH, SBPH, GRLH, RSM, whereas SRB and RLF were affected by earlier transplanting time in paddy field. The major pests except GRLH and SRB were increasingly induced by higher N-fertilizer level in the late transplanting.
Occurrence of the sycamore lace bug, Corythucha ciliata (Say) (Hemiptera: Tindidae) in Korea
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 137~139
The sycamore lace bug, Corythucha ciliata (Say), attacking a sycamore tree, Platatanus orientalis L., was first found in Korea, and was widely distributed in the central part of the country. The adult was milky white in color and 3.0-3.2 mm long, and the matured nymph was black. Heavily infested trees appear yellowish white as a result of feeding by the nymphs on the under surface of leaves.
Study on the Bionomics of Overwintering Green Leaf-hopper, Nephotettix cincticeps Uhler, in Milyang
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 140~145
This study was conducted to investigate the winter ecology of the green leafhopper(GLH), Nephotettix cincticeps Uhler, in Milyang, south-eastern part of Korea from early December to early April during 1990 to 1992. The instar distribution in the overwinteing GLH population collected in December 5th was most of 4th instar 77% to 79% followed by 3rd instar 15% to 17% and 5th instar 3%. These instar distribution rate in the overwintering GLH was changed with collecting dates during overwintering periods of the GLH. Among the GLH population collected, as a result, the distribution rate of the 5th instar was significantly increased in February 20th and was most of 5th instar 70% to 71% in March 19th and was adult 47% to 50% in April 8th. During two overwintering periods of the GLH, the averaged instars converted the instar distribution of the overwintering GLH into the numerical values were 3.91 and 3.86 instar in December 5th, 4.11 and 4.07 instar in February 20th, 4.75 and 4.79 instar in March 19th and 5.42 and 5.45 instar in April 8th respectively. In addition to, the developmental index between pre-collected date and post-collected date of the overwintering GLH was roughly more than 1.0 value. It means that the overwintering GLH was developed without cease though the development was very slow and deponded upon air temperature. The overwintering GLH population were significantly more collected at the levee than at the barley field.
I. Laboratoy Rearing of the Aphidophagous Ladybeetle, Harmonia axyridis; Yolk Protein Production and Fecundity of the Summer Adult Female
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 146~152
The adult of the aphidophagous ladybeetle, Harmonia axyridis, was reared by feeding an artificial diet (chicken's 1iver:sugar = 5:2, v/w). The adult ladybeetle used was from pupae collected in the field in midJuly. Yolk protein production, fecundity and longevity of the adult female were checked under 3OoC, 16L:8D. Yolk proteins (Vg3 and Vg4) were detected from the hemolymph of the female 5 days after the emergence. One hundred pairs of female and male were reared separately. First oviposition started from 7 days afier the emergence and laid an average of 163.9k144.0 eggs during lifetime. Seventeen females did not lay eggs at all. Longevity of the female was 60.6k16.9 days. The application of a JH analog, methoprene (2.5 pg), caused the occurrence of yolk proteins in the hemolymph 1 day earlier than that of the control. Weekly application of 2.5 pg of methoprene induced 83.3% from the 30 females to lay eggs within 15 days after the emergence, while the control had 51% only. Methoprene made all females lay eggs, causing the increase in the fecundity. Though the longevity of the female was not effected by the weekly application of methoprene, one time excess dose (12.5 pg) caused high in mortality and low in fecundity.
Laarvicidal Acrivities of Extracts from Domestic and Japanese Plants aginst the Pine Needle Gall Midge (Diptera: Cecidomyiidae)
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 153~158
Methanol extracts from 79 domestic plant species in 41 families and the crude oil of one Japanese plant species were tested for their larvicidal activities against Thecodiplosis japonensis Uchida et Inouye, using filter paperimpregnated and insect-dipping methods. In a test with 10 mgtpaper, strong larvicidal activity (>90% mortality) was obtained from the extracts of roots from three domestic plants belonging to Ranunculaceae (Aconitum pseudo- leave var. eretum, A. carmichaeli and Clematis florida) and the crude oil of sawdust from a Japanese plant, Thujopsis dolabrata var. hondai (Cupressaceae). However, only the crude oil from the Thujopsis sawdust revealed strong larvicidal activity when tested with 5,000 ppm by insect-dipping method. It is concluded that the Thujopsis sawdust-derived materials could be useful as a new control agent against T. japonensis.
Linkage Group Analysis of Profenofos Resistance in the Housefly(Diptera: Mucsidae)
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 159~163
The profenofos-resistant P-Pro strain of house fly (Muscn domestica L.) was derived from the pyraclofos-resistant strain by selecting with profenofos for 7 generations. The resistance was shown to be incompletely dominant by the reciprocal crosses between the resistant and susceptible strains. Linkage group analysis for the dominant factor responsible for this resistance was carried out by the F, male-backcross method, using susceptible multi-chromosomal marker strain. The major factors for profenofos resistance were located on the second and the fifth chromosome and the other chromosomes had a little effect on the development of this resistance. The male determining factor (M) was linked to the third chromosome in this strain.
Comparative Toxicity of Abmectin to the Spider Mites, Tetranychus urticae Koch and Teranychus Kanzawai Kishida (Acarina; Tetranychidae) and the Predatory Mite, Amblyseius womersleyi Schicha (Acarina: Phytoseiidae)
Korean journal of applied entomology, volume 35, issue 2, 1996, Pages 164~172
The comparative toxicity of abamectin to the predatory mite, Amblyseius womersleyi Schicha and the spider mites, Tetranychus urticae Koch and T. kanzawai Kishida was evaluated by leaf disc method. Abamectin was much less toxic to A. womersleyi than to the spider mites. Although survival rate of adult females of A. womersleyi tended to decrease with increasing abamectin concentration, 8-78% of predators remained alive at concentrations of 0.38-6 ppm. Likewise, reproduction was significantly reduced with increasing abamectin concentration. Abamectin neither affect the hatch of A. womersleyi eggs nor the development of surviving immature predators. Survival of immature predators decreased with increasing abamectin concentration. However, 42-90% of immature predators reached adulthood at 0.38-3 ppm. Adult female predators survived on a diet of spider mites intoxicated with abamectin, although their fecundity and the sex-ratio of the progeny were significantly affected. Abamectin at selective sublethal concentrations (0.38-0.75 ppm) could he of value in adjusting predatorlprey ratios in integrated management of T. urticae and T. kanzawai.