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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 19, Issue 4 - Dec 1980
Volume 19, Issue 3 - Sep 1980
Volume 19, Issue 2 - Jun 1980
Volume 19, Issue 1 - Mar 1980
Selecting the target year
Macrophomina phaseolina Detected in Seeds of Sesamum indicum and It's Pathogenicity
YU S.H. ; Park J.S. ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 135~140
Out of 12 seed samples of Sesamum indicum L. tested, Macrophomina phaseolina (Tassi.) Goid was detected in 7 samples for the first time in Korea. Detailed descriptions of the habit character and pycnidial and pycnospore morphology of this fungus were described. Pycnidia of this fungus were not formed on agar media but they were formed on Water Agar Leaf Media under fluorescent light. M. phaseolina caused heavy reduction in seed germination and seedling stand of sesame and produced charcoal rot symptom on potato tubers. It was also detected from over wintered plant debris and diseased seedlings in the field.
Impossibility of Seed Transmission In Plant Mycoplasmal Diseases
Shin Hyeon-Dong ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 141~143
Seed transmission in plant mycoplasmal diseases has never been reported. Some evidences supporting impossibility of seed transmission in plant mycoplasmal diseases are discussed.
A new Promalactis species from Korea (Lepidoptera, Ocecophoridae)
Park K. T. ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 145~147
Three New Species of Pagaronia Ball (Homoptera, Cicadellidae) from Korea
Choe Kwang-Ryul ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 149~152
The paper contains descriptions of three new species: Pagaronia kumsanensis sp.n., P. heuksanensis sp. n., and P. hamatus sp.n. from Korea. Figures of male genitalia and female seventh sternum are given for all species.
Influence of bulb nematode, Ditylenchus dipsaci, on growth and yield of garlic
Han S.C. ; Cho H.J. ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 153~155
In pot experiment, relations between bulb nemationde, Ditylenchus dipsaci, and growth and yield of garlic were followed. There was no effect of height growth on bulb nematode, but growth of volume was reduced at more than 250 nematodes per pot. Yield loss of garlic was more than
when nematode density was about 30 per bulb in late-April. Tolerance limit should be about 20 nematodes per bulb at early growing stage. Reproduction of bulb nematode was good when initial population had been low.
Inheritance of Resistance to Bacterial Leaf Blight Caused by Xanthomonas oryzae (Uyeda at Isheyama) Dowson in Rice
Sohn J.K. ; Kim M.H. ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 156~162
The inheritance and varietal differences of resistance to bacterial leaf blight caused by Xanthomonas oryzae in rice were studied. Among eighteen cultivars used, 'IR2061-465-1-5-5', 'IR2061-552-6-9', 'IR 1561-228-9-3', ana 'Milyang42, were found to have a high level of resistance to the three isolates of X. oryzae at maximum tillering and flowering stage. Varietal differences in lesion development of the cultivars belonging to the same varietal group were clearly recognized. For the genetic study on bacterial leaf blight resistance, two rice breeding lines 'IR2061-465-1-5-5', 'IR1561-228-3-3' were crossed with susceptible cultivar 'Milyang 23'. The
progenies were evaluated at flowering stage using the bacterial isolate 'JN 7853'(II). Average lesion length of the
plants of the crosses showed longer than that of resistant parents, and the frequency distribution of lesion length in the
populations showed continuous variation.
Studies on new antibiotics in Korea IV
Shim Je-Seop ; Oh You-Jin ; Yun Jeong-Ku ; Han Seong-Soon ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 163~168
The antibiotic bacterium JS7901, one of the eighty three antibiotic microorganisms which have been is elated in the surburbs of CheongJu-city, showed the most effective antimicrobial activities against test organisms, both bacteria and fungi. Among the different culture media Soytone Sugar medium was the most effective for growth and activity of the JS7901 antibiotic bacterium a against both Escherichia coli and Staphyllococcus aureus by the cylinder plate method. The higher the sugar content, was, the greater the antibiotic amount of substances of JS7901 were produced in the soytone sugar media. The antibiotic bacterium, JS7901 appeared to have a broad activity spectrum showing inhibition in Vitro against gram positive and negative bacteria and plant disease fungi. In general, the active substances were not transferred into organic solvents. Only a small portion of the activity was transferred into ethyl ether and was also adsorbed to active carbon when the cultured broth was also adsorbed to active carbon when the cultured broth was at
. On adjusting at pH 8.0, the activity disappeared. The crude active substances could be obtained by means of vacuum drying method and still shelved strong activity. The dried active rake was solved by solvents and crystallized into various shapes. The active substances were developed on the silica gel plate in the solvent system of n-butanol-acetic acid-water(3 : 1 : 1) and gave 5 pinkish colored spots when sprayed with
ninhydrine in ethanol. The upper 5th spot, which was the result of using disc plate method with Escherichia coli was the strongest of these spots.
Effects of Fungicides on Sporulation of Apple Leaf Spot Alternaria mali Roberts
LEE Chang Un ; KIM Moon Ho ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 169~174
Regardless of the kind of the apple orchards whether received various fungicides application or not Rovral exhibited the most efficient inhibitory effect on the sporulation of Alternaria mali with the spotted leaf disks at the recommended dose
as well as the lower or the higher doses. When applied at the recommended doses
of Antracol, Dithane M-45, and Dikar, respectively, these fungicides showed complete inhibitory effects on the sporulation. At the lower levels of application, they allowed the sporulation of 10,000 to 25,000 conidia/ml. Polyoxin and Difolatan, when applied on the leaf disks from the orchard that had received the fungicides application, exhibited low effects allowing the sporulation of around 20,000 conidia/ml. On the leaf disks from the orchard that had received no fungicide application, however, both fungicides showed relatively high inhibitory effects of the sporulation. The inhibitory effects of Captan, Dakonil, and Spat on the sporulation were lower than those of the aforementioned fungicides. Bayleton was the least effective among the fungicides used in the present investigation. Benlate showed promoting effect on the sporulation of the apple leaf spot fungus rather tan inhibiting.
An infectious virus isolated from soybeans
Lee Soon Hyung ; Lee Min Hyo ; Tochihara Hiroshi ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 175~179
Soybean stunt virus (SSV) was newly isolated in Korea from naturally infected soybeans (Glycine max). The main symptoms caused by this virus on soybean cultivars are crinkling, mild mottling and reduction in plant size. This virus induced local lesion on the inoculated leaves of Chenopodium amaranticolor, C quinoa and Vigna sinensis, and mosaic symptoms on Nicotiana tabacum (Bright yellow, KY-57). The virus was inactivated at 60C, and was infectious at dilution of
. Extract juice became infective 3 days later at room temperature. The virus was transmitted by green peach apid (Myzus persicae). This virus closely is related serologically to cucumber mosaic virus. The virus particles observed in the electron microscopy were spherical types of 30mm in diameter.
Catalogue of the Pyralidae of Korea (Lepidoptera) II. Crambinae and Nymphulinae
Park K. T. ;
Korean journal of applied entomology, volume 19, issue 3, 1980, Pages 181~185