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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean journal of applied entomology
Journal Basic Information
Journal DOI :
Korean Society of Applied Entomology
Editor in Chief :
Volume & Issues
Volume 31, Issue 4 - Dec 1992
Volume 31, Issue 3 - Sep 1992
Volume 31, Issue 2 - Jun 1992
Volume 31, Issue 1 - Mar 1992
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Community Analysis of Superfamily Pentatomoidea (Hemiptera) in Mt. Kyeryongsan
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 89~100
The study was conducted to investigate the community structure of superfamily Pentatomoidea(Geocorisae: Hemiptera) in Mt. Kyeryongsan from August, 1989 to August, 1990. The collected pentatomoid insects were composed of 34 species, 22 genera, and 5 families. Percentages of pentatomoid insects found in each observed zone were 45.4 % (22 species) in the paddy bank, 37.5% (26 species) in the weedy field and 17.0% (20 species) in the shrubs. Dominant species and Simpson's dominance indices were Eurydema rugosa and Carbula putoni (
=0.125) in the paddy bank, Carbula putoni and Eurydema rugosa (
=0.183) in the weedy field, Gonopsis affinis and Coptosoma biguttulum (
=0.099) in the shrubs. Seasonal dom¬inant species were Eurydema rugosa and Dolycoris baccarum (
0.207) in Spring, Carbula putoni and Eurydema rugosa (
=0.1l5) in Summer, and Carbula putoni and Nezara antennata (
=0.141) in Autumn. Species diversity indices(H') in paddy bank, weedy field, and shrubs were 1.034, 1.039, and 1.105, respectively. Evenness indices(J') were 0.770, 0.734, and 0.849, respectively. Community structures were almost similar between the weedy field and the shrubs.
Studies on the Distribution of Ants(Formicidae) in Korea (9) -Ant Fauna in Mt. Togyusan
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 101~112
For the studies of ant founa in Mt. Togyusan, we collected 476 colonies in 1986, 1989, and 1 1991. The communities of ants were composed of 4 subfamilies, 22 genera and 44 species. The a ants of Mt. Togyusan consisted of 21 species and 12 genera in Myrmicinae, 20 species of 6 g genera in Formicinae, 4 species of 3 genera in Ponerinae, and 1 species of 1 genera in D Dolichoderinae. The vertical distribution of the ants in Mt. Togyusan was distributed 41 species in 93% of total species at the altitude of 500 m. The upper limit line of vertical distribution was distributed of 5 species included Pacycondyla astutus and Messor aciculatus at the a altitude of 700 m, and 10 species included Ponera japonica, Leptothorax congrus, ,Lasius b brunneus, and Parairechina flaevipes at the altitude of 1000 m.
Community Analysis of Superfamily Coreoidea (Hemiptera) in Mt. Kyeryongsan
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 113~121
The study was conducted to investigate the community structure of superfamily Coreoidea (Geocorisae: Hemiptera) in Mt. Kyeryongsan from August, 1989 to August, 1990. The collected coreoid insects were composed of 17 species, 13 genera, and 2 families. Percentages of coreoid insects found in each observed zone were 47.4% (13 species) in the paddy bank, 37.4 % (13 species) in the weedy field and 15.2% (11 species) in the shrubs. Dominant species and Simpson's dominance indices were Riptortus clavatusa and Stictopleurus crassicornis (
=0.128) in the paddy field, Cletus schmidti and Homoeocerus dilatatus (
=0.141) in the weedy field, Riptortus clavatus and Homoeocerus dilatatus (
=0.199) in the shrubs. Seasonal dominant species were Cletus trigon us and Rhopalus maculatus (
=0.149) in Spring, Cletus schmidti and Homoeocerus dilatatus (
=0.132) in Summer, and Riptortus clavatus and Cletus schmidti (
=0. 386) in Autumn. Species diversity indices(H') in the paddy bank, weedy field, and shrubs were 0.931, 0.916, and 0.810, respectively. Eveness indices(J') were 0.836, 0.800, and 0.778, respectively. Community structures were almost similar between the paddy bank and the weedy field.
In Vitro AChE Inhibition Tests of Insecticides Using Electric eel and Housefly AChE
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 122~132
Experiments were conducted to establish an in vitro AChE inhibition test system to evaluate the potency of AChE inhibition of new chemical compounds. For a fixed time inhibition test, optimal inhibition (incubation) time to evaluate their AChE inhibition potency was 10 min. for AChE inhibitors such as DFP, DDVP, and paraoxon. The concentration of new chemical compounds with an ester group for evaluation of their inhibition potency was 10
M under 10 min. preincubation conditions. However, the stepwise inhibition test with higher concentrations seemed to be needed for other chemical compounds. For a progressive inhibition test to calculate inhibition constants such as
, extremely low
) were observed under lagged preincubation time (0.8-13.3 min) and low in¬hibitor concentrations
. However, this method seemed to be useful for comparison of AChE inhibition potency among inhibitors. Differences in inhibition potency among DFP, paraoxon, and KH501 were due to the differences in
, in other words, differences in affinities between inhibitors and AChEs. Therefore, AntiChE screening should consist of two steps. The first step is to evaluate the potency of AChE inhibition based on
valuse obtained from fixed time inhibition tests. The second step is to study inhibition patterns and characteristics of chemical compounds selected in the first step.
Species, Damage and Population Density of Pseudococcidae Injuring Pear Fruits
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 133~138
This study investigated species, damage to fruits and population density of Pseudococcidae on pear in Naju, Chonnam province from 1990 to 1991. Three species, Planococcus kraunhiae, Pseudococcus comstocki and Crisicoccus matsumotoi, were identified. Of them P. kraunhiae was most abundant as 80.6%. Rate of fruit damages was greatest in var. Poongsoo as 39.7% but locations of field did not affect the rates. Degree of damages on Singo(late var.), Poongsoo (midseason var.) and Haengsoo(early var.) was 21.2, 18.2 and 13.3%, respectively. Population density of scales within paper bag of fruits began to increase from mid-June and showed the first at mid-July, the second at mid-August and third peak at early October. Rate of fruit damages was 48% at the first peak and 50.6% at 7 days after the second peak. Density increased from early October again but migration was not active presumably because of cold weather.
Feeding Plants of Rice Water Weevil
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 139~143
Feeding plants of rice water weevil(RWW) adult and larvae were observed. Thirteen families including 104 species were found as host plants of RWW adult, and 74 species of them were newly identified as its host. Thmedia triandra var. japonica, Luzula capitata, Agropyron tsukushiense var. ransiens, and Zoysiama crostachya were most favorable hosts of adult RWW. Host plants for larvae were 9 species of weeds including Cperus nipponicus, Eleccharis kuroguwa, Sagittaria trifolia, and Claviceps purpurea in the rice paddy fields.
Juvenile Hormone Titers and Juvenile Hormone Esterase Activity during Larval Stage of the Chestnut Gall Wasp, Dryocosmus kuriphilus Yasumatsu
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 144~152
The juvenile hormone(JH) titers and juvenile hormone esterase (JHE) activities were mea¬sured in larval homogenates of the chestnut gall waL,J, Dryocosmus kuriphilus Yasumatsu, parasiting a susceptible and two resistant chestnut ( Cheuk-Pa, and Dan- Tak) varieties by GLC, Galleria wax test and Liquid scintilation counter. JH of the chestnut gall wasp was identified as JH- I. Their juvenile hormone titers were 35,800 GU/g(Cheuk-Pa), 30,900 GU/g (Dan-Tak), and 28,600 GU/g(susceptible variety). The juvenile hormone esterase activities were 1.48 n mole/min/ml(Cheuk-Pa), 1.63 n mole/min/ml(Dan- Tak), and 1.89 n mole/mini ml(susceptible variety). JH titer activity of the chestnut gall wasp parasiting resistant varie¬ties were higher than that from susceptible, whereas their JHE activity was higher in those from susceptible variety than those from resitant varieties. JH titer and JH specific esterase activity was inversely proportional.
Comparative Morphology of the Weevil Larvae of the Superfamily Curculionoidea in Korea(Coleoptera) (I)
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 153~169
This study was made to describe the morphological features of larvae of Pissodes nitidus, Pissodes obscurus, Shirahoshizo insidiosus, Curculio sikkimensis, Cryptorhynchus lapathi of Curculionidae and Apoderus jekeli, Byctiscus puberulus regalis, Euops splendidus, Rhynchites heros of Attelabidae and Siplinus gigas of Rhynchophoridae.
Phytophagous Insect Fauna of Monocotyledoneae (Tracheophyta : Angiospermae) Weeds
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 170~173
Phytophagous insects of Monocotyledoneae were surveyed from May to October in 1991. Each p province was divided into 9 localities by
-shape for the collection. Seventeen weed species b belonging to 17 genera were collected, namely, 14 Graminales weed species of 14 genera, 1 s species of Farinales weed, and 1 species of Liliales weed. Phytophagous insects representing 5 orders, 13 families, 27 genera, and 36 species comprised the insect fauna on Monocotyledoneae w weeds. Five species were not identified out of 36 insect species. Grasshoppers, hemipteran, s scarab beetles, and leaf beetles were frequently collected. Lema concinnipennis was a potential biological agent on Commelina communis, and Oulema dilutipes was first collected from Setaria u viridis. Commelina communis in golf course was severely damaged by Adoretus tenuimacu/atus c chafer but this insect was also an important insect pest of turfgrass and trees.
Delia platura (Meigen) as a Soybean Insect Pest
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 174~181
Early, mid, and late maturing soybean varieties were artificially infested with larvae of Delia platura at seeding, and then later development and productivity of soybeans were studied. In addition, in hope to utilize as possible tactics in the management of D. platura in soybeans, cultural factors such as contents of organic matter in soil, soil types, and the use of plastic mulching on the degree of damage to soybean plants by D. platura were examined. Primary leaf damage by the larva delayed the forthcoming vegetative growth but not the blooming which is initiated by the change in day length. Degree of delay in growth was more severe where leaf damage was induced by insect infestation than where artificially excised, apparently owing to simultaneous damage in stems and roots besides primary leaves. Productivity of soybeans also dropped significantly in plants with 25 % or more loss in the primary leaf area by the larva. Both transparent and black plastic mulchings shortened the period from seeding to emergence of soybean thus reducing the chance of possible attack by the larva. Soybean seedlings grown in clay loam or clay were attacked less by the larva than those in other types of soil. High organic matter content in the soil enhanced speed of emergence resulting in less larval damage to the seedling.
Establishment of Bioassay System for Developing New Insecticides I. Effects of Organic Solvents on the Toxicity against Insects, Phytotoxicity and Solubility of Compounds
Korean journal of applied entomology, volume 31, issue 2, 1992, Pages 182~189
The influnces of 9 kinds of solvents on the toxicities against several insect species, phytotoxicity and solubility of compounds were evaluated by means of leaf dipping and spray methods. In case of the spray application, density and vapor pressure seemed to be a contributing factor to lethal toxicity against brown planthopper and diamond-back moth, respectively; the bigger the property of density and the smaller the vapor pressure gave the stronger toxicity. It appeared that the toxicity of solvents was not correlated with anyone of physical properties such as boiling point, dipole moment, dielectric constant, surface tension and viscosity. Spray treatment gave more toxicity to insects than leaf dipping treatment. Although dielectric constant and dipole moment seemed to be contributing factors to phytotoxic damage to rice seedling and bean plants, respectively, no general correlation between phytoxicity and the other physical properties was found. Leaf dipping application caused stronger phytotoxicity than spray application. It is concluded that 5% acetone solution may be most suitable to test chemicals because of its favorable solubility of compounds, lower toxicity to insects, and lower phytotoxicity.