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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 21, Issue 4 - Dec 1982
Volume 21, Issue 3 - Sep 1982
Volume 21, Issue 2 - Jun 1982
Volume 21, Issue 1 - Mar 1982
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Relationships between Damaged Bite of Ears and Heading Time and Position of Punctured Leaves by the Rice Stem Maggot, Chlorops oryzae Matsumura, in the Second Generation
Kim Ki Whang ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 175~178
Field studies on the damage type of rice plants by the rice stem maggot in the second generation were conducted at Yong-in, Gyonggi Province, in 1982. Rate of damaged ears and the number of punctured leaves were higher in Tongil line than Japonica line. Early heading cultivars usually had bottom-damaged ears and on the contrary late heading cultivars had upper?damaged ears. In Tongil line, many of the upper-damaged or middle-damaged ears had punctured-flag leaves and less first leaves with punctures, but most of the bottom-damaged ears had not punctured-leaves. When matured, the larvae moved up to the upper part of stem and pupated on the upper and inner part of leaf-sheath of flag or first leaves.
Classification of the Anthomyiidae from Korea (II) (Diptera: Calyptratae)
Kwon Youg Jung ; Suh Sang Jae ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 179~184
In this paper, four species of the anthomyiid flies are reported for the first time in Korea, including two newly recorded genera as: Chirosia cinerosa (Zetterstedt, 1845) gen. et sp. hav. nov., Paraprosalpia billbergi (Zetterstedt, 1838) gen. et sp. hav. nov., Lasiomma octoguttatum (Zetterstedt, 1845) sp. hav. nov., and Pegomya cunicularis (Rondani, 1866) sp. hav. nov. Some male genitalic characters and head structures are figured respectively.
Classification of the Anthomyiidae from Korea (III) (Diptera: Calyptratae)
Kwon Yong Jung ; Suh Sang Jae ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 185~190
One new species and three newly recorded species of anthomyiid flies from Korea are treated as: Meliniella sobaeksana sp. nov., Fucellia apicalis Kertesz, 1908 gen. et sp. hav. nov., Fucellia kamtchatica Ringdahl, 1930 gen. et sp. hav. nov., and Delia robustiseta Judin, 1974 sp. hav. nov. Some male genitalic characters are given here respectively.
Chemical Control of the Pine Gall Midges (Thecodiplosis japonensis Uchida et Inouye) VII. Improvement of the Trunk Implantation Methods of Systemic Insecticides
Choi Seung-Yoon ; Park Hyung-Man ; Chung Bu-Ken ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 191~194
Using the two different trunk-implantation methods, the systemic insecticides omethoate
, and phosalone
were evaluated for the control of the pine gall midges(Thecodiplosis japonensis Uchida et Inouye). Except phosalone, all the insecticides tested in this experiment were very effective for the suppression of the gall incidence by the insects. There was no significant difference in effectiveness between the conventional drilling and improved Mauget methods, and trunk-implantation of the insecticides by the improved Mauget method seemed to be much more feasible in practical view points of the labor cost saving the recovery of the holes drilled.
Recent turends in the Population Density of the Pine Moth, Dendrolimus spectabilis Butler, in Relation to the Amount of Rainfall
Park Ki Nam ; Hyun Jai Sun ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 195~199
Data on population density of the pine moth, Dendrolimus spectabilis Butler, were collected in October at 9 permanent study plots for 13 years
and graphically analysed. Population density sowed peaks in 1970 and 1975 year and declines in 1972 and 1976 year, and similar trends have been observed over the country. Rainfall, particularly the maximum rainfall per day, in August seems to be a key factor resulting in the sudden decline in density and this could explain almost synchronous fluctuation. The intensity of rainfall in August affecting the decline if density was estimated to be more than 100mm per day.
A Phenological Simulation of the Striped Rice Borer, Chilo suppressalis (Walker), Life System
Song Yoo Han ; Choi Seung Yoon ; Hyun Jai Sun ; Kim Chang Hyo ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 200~206
A computer simulation model was constructed to explore the phonology of the Striped Rice Borer, Chilo suppressalis (Walker), in Korea. The phenological system model based on the concept of distributed time delay was written in the computer program 'INSECT' and simulated with the estimated parameters of the effective day-degrees (DEL) and the order of time delay (K) for determining the validity of the system model. The accumulated emergence curves obtained from the phenological model were slightly different from the observed light trap data at the early and late stage of the moth emergence in 1978. The differences between observed and simulated
emergence date were five to six days in the locations of Suweon and Chuncheon, while it was only two to three days in Iri, Daegu, Boseong, and Milyang. The phenological model should be further improved for simulation of field population changes by adding the information of the time delay process in each developmental stage, the age distribution of overwintered population, and the limiting factors of the borer mortality.
Studies on the Disease of Pear Rust Caused by Gymnosporangium haraeanum SYDOW II. Survey of Juniper Host and Chemical Control of Pear rust
Kim Seung Chul ; Kim Choong Hoe ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 207~210
The studies were carried out to examine susceptibility or resistance of junipers as an inform ediate host of pear rust, to select effective fungicides to pear and juniper rust, and to determine their application time. The telia were formed abundanty on Juniperus chinensis var. kaizuka, moderately on J. chinensis, J. chinensis var. sargentii and J. virginiana, but little on J. chinensis var. globosa and J. utilis. The telia from the junipers were pathogenic to pear. Spraying juniper host with the fungicide Actidione in the 1st and End parts of April greaty inhibited swelling of telia as well as germination of teliospores. The two or three applications of Bayleton at the end of April to May 10 were remarkably effective for the control of pear rust. Fungicide sprays just before rain were more effective than those after rain.
Studies on Sesame Diseases in Korea I. Incidences of Phytophthora Blight
Cho E.K. ; Heo N.Y. ; Choi S.H. ; Lee S.C. ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 211~215
Incidences of Phytophthora blight in plant of sesame (Sesamum indicum L.) were observed in southern sesame production areas, Gochang of Jeonbug, Yeonggwang of Jeonnam, Jinyang of Gyeongnam and Dalseong of Gyeongbug province where disease survy was conducted from July 29 to August 1, 1981. The rate of disease incidence ranged from none to
depending upon the field observed. The causal species of the Phytophthora was identified as P. nicotianae var. parasitica (Dastur) Waterhouse based on specific pathogenicity to sesame and morphological characteristics of sporangia. Diseased plants of sesame generally showed dark discoloration on the stem leading to plant death.
Effects of Application Levels of Fertilizer on the Susceptibility to Bacterial Leaf Blight, Yield and Quality of Grains in Nineteen Rice Cultivars in Jeonnam Region
Cha K.H. ; Kim Y.S. ; Kim H.J. ; Lee D.K ; Kim M.S. ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 216~221
This experiment was conducted in Jeonnam to investigate the effects of fertilizer amounts at two application levels on disease severity of bacterial leaf blight, yield and qualify of rice grains using nineteen rice cultivars. Incidence of bacterial leaf blight was more severe in the field with higher amount of fertilizer application. Disease severity was also different depending upon maturity of rice cultivars of early maturing group, however, the flag, second and third leaves were diseased in rice cultivars of medium late maturing group. Such differences were more obvious in the field with higher amount of fertilizer application than in the field with ordinary fertilizer application. Rice cultivars such as Taebaegbyeo, Hangangchalbyeo, Baegunchalbyeo, Palgwangbyeo and Milyang 42 were resistant whereas rice cultivars such as Milyang 30, Geumgangbyeo, Nagdongbyeo and Jinjubyeo were susceptible to bacterial leaf blight in both treatments. However, fertilization rate and percentage of ripeness were decreased resulting in heavy loss of yield. The rate of green-kerneled rice was increased resulting in poor qualify.
Biochemical Characteristics of Apple Rot Caused by Macrophoma sp. II. Phenolic Compound Content in Infected Fruits
Hwang Byung Kook ; Lee Yong Se ;
Korean journal of applied entomology, volume 21, issue 4, 1982, Pages 222~226
Changes in levels of phenolic compounds such as total phenols, flavonols and anthocyanins in Macrophoma-infected apples were studied at various developmental stages of apple fruits. The amounts of total phenols in apple fruit flesh and peel drastically decreased as apples became mature. Apple rot resulted in concentration of total phenols somewhat lower than those of healthy apple flesh. The decline in amount of total phenols was distinct in infected fruit flesh of the cultivar Fuji, which was more susceptible to Macrophoma sp. than the cultivar Miller. Higher amounts of total phenols were found in infected than in heathy fruit peel. In the case of the cultivar Miller, increased accumulation of total phenols was pronounced in infected peel. Apple rot resulted in concentrations of flavonols much higher than those of healthy apples. In particular, the drastically increased accumulation of flavonols was detected in infected peel at the first collection on 10 July, when the cultivars tested were completely resistant to Macrophoma sp. Production of anthocyanins was increased considerably by apple rot: anthocyanins in infected fruits of the cultivar Miller increased markedly as compared with their concentration from healthy fruits. These results suggest that the altered phenolic metabolism in apple fruits may be associated with the development of apple rot.