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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 20, Issue 4 - Dec 1981
Volume 20, Issue 3 - Sep 1981
Volume 20, Issue 2 - Jun 1981
Volume 20, Issue 1 - Mar 1981
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Ecological Studies on Rice Sheath Blight Caused by Rhizoctonia solani 1. The Difference of Disease Development Between Jinheung and Yushin
Kim Chang Kyu ; Kang Chang Sik ; Rim Sa Joon ; Lee Eun Jong ; Lee Kyung Hee ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 71~75
The percentage of lesion height vs. plant height was higher in Yushin than Jinheung within the same nitrogen level. The infection occurred at the same level of waterline and the symptoms developed with the same speed for two varieties, but the damage was greater in Yushin as the symptoms reached faster to the top due to the short length of the 1st and 2nd internodes from the top.
Isolation and Properties of Cucumber Mosaic Virus Inducing Mosaic Symptoms in Hippeastrum hybridum Hort
Kim J.S. ; Kim H.B. ; Lee S.H. ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 76~82
Cucumber Mosaic Virus (CMV) was isolated from naturally infected Hippenstrum hybridum. The virus caused mosaic symptoms on Nicotiana glutinosa and local lesions on Vignaunguiculata. The thermal inactivation point was 56C, dilution end point
and longevity in vitro was 2 days for CMV from Hippeastrum. Purified virus was obtained using citrate chloroform extraction procedure and polyethylene glycol precipitation followed by sucrose density gradient centrifugation. Purified virus had a typical absorption at 245nm. Electron micrographs of the purified virus from Hippeastrum showed spherical particles with 30nm in diameter. The purified virus reacted with CMV antiserum in agar gel double diffusion test.
Studies on the control of stem blight of asparagus caused by Phoma asparagi Sacc
Choi Jin Kyu ; Kwon Young Sam ; Yu Yun Hyun ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 83~86
Experiments were carried out to study on control of stem blight of asparagas caused by Shoma asparagi Sacc. in Suweon,
. Symptoms of the disease were found in the field from late of May and severe infection was shown thereafter. Plastic film mulching with foliage spray of Topsin 154g a.i. and Difolatan 220g a.i. per 10a at 10days interval during the growing season, gave significantly good control and high yield compared with other treatments. In addition to reduction of the disease, the treatment with mulching has maintained good soil moisture for asparagus growth when the soil moisture was measured at about loom under the soil surface from July to August.
TAXONOMIC STUDIES ON MICRO-LEPIDOPTERA OF KOREA (I) The family Oecophoridae with thirteen unrecorded species from Korea
Park Kyu-Tek ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 87~97
This study presents the first review of the family Oecophoridae, except the genus Promalactis which was reported previously by author, in Korea. From the result of the study thirteen species belonging to nine genera are reported for the first time from Koea. For the study a general characteristic of species was described and also genitalia of males or females were illustrated. Host plants of larva known to date are also listed.
Studies ell the Ecological Characteristics of Beanfly (Melanagromyza sp.) in Soybean
Kwon S.H. ; Chung K.H. ; Lee Y.I. ; Ryu J. ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 98~102
For the investigation of seasonal fluctuation of immature (lavae and pupae) beanfly, infestation rates, and habit, several soybean-cultivars were planted at Kumgok Experiment Farm of KAERI by three different planting times at 25-day intervals. Infestation rates of beanflies were ranged from
in accordance. with the planting dates, where an increase in infestation rate was found with delay in planting dates. Immature beanflies were already observed from lune 20 by plant dissection counts. Three peaks of the seasonal fluctuation of lava were shown by occurring on July 10, August 10 and 50 during the soybean cultivation, while two peaks of pupal appearances were found. The most high peaks of lavae and pupae occurred on August 10 and 30, respectively. The lava were habitable in the pith or cortex tissue of soybean stem. They prepared tiny hole on the axilla as well as the internode of stem, and then they pupated in the holes from which the adults are able to escape. Immature beanfly seemed to prefer invading to the underground part of the stem when the soybean plants were in young stage.
A Study on Gravity Penetration of Fumigants in the Jumbo Silo
Hah Jae Kyu ; Oh Jung Woo ; Yoo Ki Yul ; Kim Byung Ho ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 103~106
This experiment was carried out to investigate the vertical penetration and diffusion of fumigants for soybean disinfection in jumbo silo. The results were as follows, 1. Using the methylbromide independently as a soybean fumigant, penetration and diffusing velocity of methylbromide gas which moved from the top to the bottom through the vertica1 silo was too rapidly, it was possible to find out more 60mg/l of methylbromide gas concentration at bottom of silo within 4 hours after beginning the fumigation. And it showed the tendency of reducing methylbromide gas concentration gradually over the 10 hours from tile beginning the fumigation. 2. In case of added
gas to the methylbromide as a carrier is much more rapid velocity of penetration and diffusion of methylbromide gas than that of methylbromide gas independently. Therefore methylbromide gas concentration at bottom of silo was detected over the 70mg/l within 1.5 hours after beginning the fumigation.. 3. On the other hand, hence the phostoxin as a soybean fumigant was less velocity of Penetration and diffusion of the gas through the vertical silo compare to methylbromide gas, the phostoxin gas concentration couldn't detect over the 10mg/1 during the whole fumigation period at the bottomside of silo. 4. Test insects (rice weevil; sitophilus oryzae. L.) inserted at bottom of silo for examine the fumigation effect were killed completly by using the methylbromide independently and added
gas to methylbromide, while using the phostoxin the test insects were most alive.
Some factors affecting mycelial growth and sporangium formation of Phytophthora capsici Leon. on culture media
Hyun Yu Yun ; Park Sang Keun ; Choi Kwan Sun ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 107~111
Effect of light and pH on mycelial growth and sporangium formation of Phytophthora capsici Leon, causal fungus of fruit rot of red pepper was carried out on culture media. The maximum mycelial growth occurred at
and pH 6.0 on potato sucrose agar. The fungus did not produce sporangia readily in dark condition. However, abundant sporulation occurred by illuminating continuous cool white fluorescent light with 2000 lux for 48 hrs. at
. Oat meal agar was one of the best media for sporangia formation.
Seasonsal occurrence of aphids (Aulacorthum Solani K., Aphis glycines M.) and effects of some insecticides on aphids with infurrow treatment in soybean
Hwang Chang Yeon ; Uhm K. B. ; Choi K. M. ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 112~116
This study was conducted to investigate the seasonal occurrence of aphids and to evaluate their efficacy in the field for the control of some aphids on soybean when Carbofuran, Disulfoton and Ortran were applied infurrow at the planting time in 1976. Foxglove aphid (Aulacorthum solani) and soybean aphid (Aphis glycines) were dominat species in soybean field and there were two peaks in the year. The patterns of occurence of aphids were different between in field and yellow-pan. Carbofuran and Disulfoton showed a good effect for the control of aphids but Ortran was less effective.
Screening method of varietal resistance to planthoppers labeled with radioisotope
( I )
Lee J. O. ; Kim Y. H. ; Park J. S. ; Seok S. J. ; Goh H. G. ;
Korean journal of applied entomology, volume 20, issue 2, 1981, Pages 117~121
The screening method of varietal resistance on the plant hoppers has generally been evaluated as a reaction of plant after infesting insects. However, feeding amount of insects to the varieties was investigated in this experiment. The new method using isotope
for rice varietal resistance to plant hoppers was carried out through the following method. Insects tested were caged for a few hours on the plants which had absorbed
solution in small vials for
. After feeding, insects were killed in the refrigerator with formalin solution, and then were measured by the feeding amount as a count per minute (CPM) with the G.M. Counter. The results obtained were summarized as follows; 1. The apparatus of Type D(Fig. 2) was most effective and the safest among four others. 2. The optimum amount of
solution was found to be
. 3. Radioactivity of
was sufficient to check varietal difference of feeding amount by the brown planthopper. 4. Radioisotope was found from the body of insects but not in the cuticular layer nymphs cast off.