Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean journal of applied entomology
Journal Basic Information
Journal DOI :
Korean Society of Applied Entomology
Editor in Chief :
Volume & Issues
Volume 29, Issue 4 - Dec 1990
Volume 29, Issue 3 - Sep 1990
Volume 29, Issue 2 - Jun 1990
Volume 29, Issue 1 - Mar 1990
Selecting the target year
Chorion Gene Expression in the Cellular Differentiation and Accumulation of Chorion Protein of Silkmoth, Bombyx mandarina I. Specific Structures of Egg-shell and Chorion Protein
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 157~164
The surface patterns and the structures of transverse section of the egg-shell of the sikmoth, Bombyx mandarina, have been described by scanning electron microscope. Three spatially differentiated cross section, called lamellar, conic pillar and cover layers, are found on the mature eg-shell. Silkmoth chorion proteins were detected more than 80 components from a single chorion by two-dimensional electrophoresis. Major protein components of the egg-shell have bee identified on the basis of their isoelectric points and molecular weights, pH 4-6 and 6-30 kd. Several protein components are found entirely or predominantly in th cover layers.
Development Period and Oviposition of Pseudogonatopus nudas Perkins (Hymenoptera : Dryinidae), a Nymphal Parasitoid of th Whitebacked Planthoppe, Sogatela furcifera Horvath (Homoptera : Delphacidae)
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 165~169
A study was carried out to investigate some biological characteristics of Pseudogonatopus nudas, a nymphal parasitoid of the whitebacked planthopper (WBPH) under laboratory conditions (26-
). Developmental periods of eggs, larva, prepupa and pupa were 2.5, 7.8, 2.7, and 14.2 days in average, respectively. Total developmental period from egg to adult emergence was average of 27.2 days. More than 83.5% of the wasps emerged in the morning between 6 and 10 o'clock, while very few emerged in the afternoon. The average longevity of female and male were 11.8 and 3.4 days when honey and WBPH nymphs were supplied as food. female laid an average of 25.3 eggs and the oviposition period was 5.4 days. The parasitoid seemed to prefer the 3rd instar nymphas as the host for oviposition with 68.8%, followed by the 2nd (19.6%), 4th (11.05) and 5th instar (0.6%). And no parasitism was recorded from the 1st instar nymphs and in adults.
Development of Acaricidal Resistance and Esterase Isozyme of Tetranychus urticae (Acarina : Tetranychidae)
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 170~175
These studies were conducted to examine the mechanism of acaricidal resistance in the twospotted spider mite (Tetranychus urticae Koch). The resistant strains were obtained by succssive selection of five acaricides including carbonphenothion and ethion of organophosphorus compound, dicofol of organochlorine compound, cyhexatin of compound and biphenthrin of synthetic pyrethroid. Esterase isozymes were separated by polyacrlyamide gel susceptible strains. The differences of the esterase isozymes of the resistant strains were Est. 1, Est. 3 in the carbonphenothion-selected strain, Est. 3 in the ethion- and the cyhexatin-selected strains, Est. 1, Est. 3, Est. 7 in the dicofol-selected strain, Est. 7 in the biphenthrin-selected strain as compared to the susceptible strain. With the difference of electrophoretic bands and their activities, esterases were related to the resistant mechanism of tested acaricides.
Seasonal Change in Rice water Weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera : Curculionidae), in Rice Field
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 176~179
Seasonal occurrence in each stages of rice water weevil, Lissorhoptrus oryzophilus Kuschel, was studied in paddy field transplanted on May 25, Siehung, 1989. The peak of overwintered adults was late May an that of newly emerged adults was early August. Oviposition occurred in late May and late June and its peak was observed on early June. Larvae were observed from early June to early August and pupation occurred from early July to late August. The first adults of newly emerged rice water weevil was observed on early July and its emergence peak was early August.
Simple Mass-Rearing of Beet Armyworm, Spodoptera exigua (Hubner) (Lepidoptera : Noctuidae) on an Artificial Diet
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 180~183
Simple mass-rearing methods for Spodoptera exigua Hubner with an artificial diet were done in th laboratory. Hatchability of egg and its survival rates upto 3rd instar lava were 97.9 and 83.3 ercent, respectively. The pupation rates in individual rearing, mass-rearing, mass-rearing with sawdust were 48.5%, 37.5%, and 82.5%, respectively. The emergence rates in those methods were 85.2%, 86.7%, 90.9%, respectively.
Microbial Control of the Tobacco Cutworm, Spodoptera litura (Fab.), Using S. litura Naclear Polyhedrosis Virus. I. The Effect of Spray on Soybean Leaves, Temperature, Storage, and Sunlight on the Pathogenicity of the Virus
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 184~189
A nuclear polyhedrosis virus (NPV) of the tobacco cutworm, Spodoptera litura would be a promisible agent for the control of the insect. To develop a viral insecticide using S. litura NPV, effect of spray on soybean leaves, temperature, storage, an sunlight on the pathogenicity of the virus were studies as follows: Median lethal concentration (
) of the virus sprayed on the leaves against the third and the fifth instar larvae were
, respectively. On the concentration of
, median lethal times (
) were 7.3 days for the 3rd and 8.9 days for the 5th instar larvae. Stability of S. litura NPV was quickly decreased at the higher temperate than
and at the longer exposure to the higher temperature. Storage of the virus at
was kept higher pathogenicity than
. Viral activity was maintained more than 10 days in the sprayed-under leaves, but decreased at 3 day after spray in th sprayed-on the leaf surface when exposed the virus to sunlight.
Artificial Die for mass-Rearing of the Perilla Leaf Pyralid, Pyrausta panopealis Walker (Lepidoptera : Pyralidae)
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 190~193
To establish the successive rearing method of the perilla leaf pyralid, Prausta panopealis Walker, experiments were carried out wiht three diets based on a JAMSI-type artificial die for silkworm. On the SS4 diet containing 40% of perilla leaf powder the pupal and adult yields were higher than those on th fresh green perilla leaves.
Development of Fenvalerate Resistance in the Diamondback Moth, Plutella xylostela Linne (Lepidoptera : Yponomeutidae) and its Cross Resistance
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 194~200
The diamondback moth (Plutella xylostella L.) was selected over 24 generations with fenvalerate. The resulting resistant strain was tested to study development of insecticide resistance and cross resistance to some insecticides in the laboratory. Insecticide resistance of diamondback moth at the 24th generation devleoped 66.2 fold compared to the parent strain for fenvalerate. The fenvalerate selected strain exhibited 145 fold, a high level of cross resistance to deltamethrin, and also showed 17.4-45.0 fold cross resistance to alphamethrin, cypermethrin, fenvalerate, permethrin, and tetramethrin in the pyrethroid insecticides. The fenvalerate selected strain showed 2.5-4.3 fold, low cross resistance to diazinon, dichlorvos, EPN, BPMC, cabaryl, and methomyl. However, it did not show cross resistance to acephate, fenitrothion, phenthoate, and carbofuran.
The Gustatory Sense Organs in the Mouthparts of the Adult Green Leafhopper (Cicadella viridis L.)
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 201~208
The gustatory sense organs in the mouthparts of th adult Green Leafhopper (Cicadella viridis L.) were observed by scanning electron microscope. The gustatory sensilla were composed of ten D-sensilla on the precibarim, eight P-sensilla on the wall of both side of eipharyngeal basin, and two H-sensilla in the food canal of the hypopharynx. D- and P-sensilla were again subdivided into 2 subtypes as two types by their morphology. Beneath the cuticle of epipharynx, two paris of nerve bundles were seen originating from D- and P-sensilla, respectively. And a pair of nerve bundles from H-sensilla, beneath the cuticle of hypoharynx, was observed.
Influence of the Levee-burning on the Fauna of Insect Pests and Their Natural Enemies
Korean journal of applied entomology, volume 29, issue 3, 1990, Pages 209~215
Some preliminary studies were conducted to find out whether the levee-burning could justifiable for the suppression of insect pests, particularly the smaller brown planthopper (Laodelphax striatellus F.). Density surveys on pests and their enemies (mostly spiders) were carried out upto the mid May at an experimental paddy field located in Suwon after of it's levee
was burned on Feb. 20, 1987. Results were discussed in relation to density recovering of both pests and their possible enemies (spiders) and summarized as below. Not a single individual of any pest or enemy was found from the levee upto sometime after the levee-burning. Grasses started to grow more vigorously in burned ares than in unburned upto about 60 days after the burning. And densities of both pest and enemies grew higher in burned areas than in unburned from about 75 days after the burning (in Early may). It is suspected that all individuals of pests and enemies fond from the burned areas could have immigrated from the surrounding areas. If levee-burning was carried out in much wider areas, much longer time would be needed to recover the density of both pests and enemies to the center region of the burning. Wingless spiders would require even longer time than winged pest species to re-establish in the center region of the widely burned field. Pirata subpiraticus, the most abundant spider species in Korean paddy fields, starts to move about and searches for food at above
which is somewhat lower than the critical temperature for the pest species. Thus P. subpiraticus would require more food than other pest species early in the spring, and therefore, it would have lower probability to survive than pest species particularly in burned areas. Experiments for pest suppression with levee-burning would better be carried on in much wider areas, and its justification seems to be discussed after man other disciplines related to both pests and their natural enemies were throughly studied together with their density surveys. However, according to the present point of vie, the opinion that levee-burning is helpful for controlling pests which over winter on levee areas could not be justifiable.