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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 23, Issue 4 - Dec 1984
Volume 23, Issue 3 - Sep 1984
Volume 23, Issue 2 - Jun 1984
Volume 23, Issue 1 - Mar 1984
Selecting the target year
Inheritance of Resistance in Rice Cultivar IR50 to Bacterial Leaf Blight
Park Sun Zik ; Shin Mun Sik ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 69~73
The inheritance of resistance in rice to bacterial blight (Xanthomonas campestris pv. oryzae) was studied in the
generation of the cross between resistant cultivar IR50 and susceptible cultivar Zhu-Lian-Ai. Resistance was found to be controlled by two dominant complementary genes in IR50. The resistance gene(s) was linked with gene(s) for earliness with the recombination value of
in this cross.
Studies on the Wilt of Strawberry Caused by Fusarium oxysporum f. sp. fragariae in Korea
Cho Chong Taik ; Moon Byung Ju ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 74~81
The experiments were conducted to study the distribution of wilt of strawberry caused by Fusarium in Korea, the characters of the causal fnngus and its control. The results obtained are summarized as follows. 1. Wilt of strawberry has been found in Gimhae and Samrangjin, Gyeongnam province a few years ago. This disease has been spreading year after year, and observed on farms in most of the strawberry-growing areas in Korea. 2. The fungus was isolated frequently from the crowns and petioles of diseased straw berry plants, and the fungus belonging to Fusariun oxysporum in terms of the morphological characteristics of macroconidia, microconidia, chlamydospore and conidiophore on V-8 Agar. 3. The macroconidia formation of the fungus varied remarkably with the Isolates and kinds of medium tested. However. all isolates abundantly produced macroconidia on V-8 Agar. 4. The cross-inoculation tests with several forma specialis of F. oxysporum to cucumber, tomato, watermelon, luffa, cabbage, melon and strawberry were carried out. The isolates from strawberry viz. Kodama's F. oxysporum f. sp. fragariae and S-1 of the authors were pathogenic to only strawberry. The fungus was also similar in morphology and symptoms to Kodama's and Winks' isolate of F. oxysporum f. sp. fragariae. Therefore, the fungus is identified as Fusarium oxysporum Schl. f. sp. fragariae Winks & Williams. 5. The most effective fungicides were Benomyl and Homai for inhibiting sporulation and mycelial growth of the fungus. 6 The cultivar Kurumae 35, Himiko, Senga gigana and Daehak I were resistant, whereas Hokowase, Instiate Z4, Juspa, Puget beauty and Marshall were susceptible to the fungus with artificial inoculation.
Studies on the White rot and Blister Canker in Apple Trees caused by Botryosphaeria berengeriana
Lee Du Hyung ; Yang Jang Suck ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 82~88
Fruit rot and blister canker, a disease of apple occurring severely in Korea has been studied for correct identification of the syndrome In fruit and apple trees. Among the fungi isolated from blister cankers, rough barks or fruits showing rotting of 7 different host species were Botryosphaeria berengeriana (pycnidial stage. Dethiorella mali), Penicillium expansum and Alternaria sp. from apple rots and Phomopsis sp. from pear fruit rots. The most dominant isolates were B. berengeriana. Ten isolates of D. mali were grouped in to two conidial types based up mycelial growth rate, growth habits and mycelial coloration on PDA. None of 10 isolates was chromogenic. Pycnidia in apple stems, stromatic, dark brown, globose or subglobose and the measuring were
. The pycnidia contained hyaline, nonseptate, fusiform conidia. The sizes of pycnidiospore of isolates obtained from apple twig were
. Some conidia of this fungus from apple, pear, peach and ornamental cherry showed 1-,2-,3-septate before or during germination. Microconidia were observed in pycnidia on PDA and fruit lesion of inoculated host. Symptoms on leaves and fruits were contoured brown spots when inoculated. Wart-like protuberance were formed on the surface of apple and pear. Canker appeared on branches of peach and ornamental cherry inoculated.
Resistance of Dendrophoma obscurans to thiophanate-methyl and iprodione
Moon Byung Ju ; Cho Chong Taik ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 89~95
Sixty isolates of Dendrophoma obscurans isolated from 19 important strawberry growing areas of Korea were tested in vitro for resistance to thiophanate-methyl and iprodione. Naturally-occurring thiophanate-methyl-resistant isolates were about 43 percents of isolates tested, whereas iprodione-resistant isolates were 10 percents. All these resistant isolates except SU 1 and SU 2, which were highly resistant to thiophanate-methyl, showed a week level of resistance. Iprodione-resistant isolates were readily obtained in vitro, when mycelial disk of the fungus was incubated on PDA media containing iprodione at the concentrations of
, but no thiophanate-methyl-resistant isolate from the mycelia with or without UV irradiation. All these artificially-obtained iprodione-resistant isolates were showed a high degree of resistance. On the strawberry leaves, thiophanate-methyl and iprodione were no longer effective to all resistant isolates at the recommended concentration, and the protective value to highly resistant isolates was much less than that of weakly resistant isolates. Isolates resistant to thiophanate-methyl were also resistant to benomyl but iprodione-resistant isolates did not show cross-resistance to thiophanate-methyl, benomyl, captan and zineb. Captan controlled both thiophanate methyl-resistant and iprodione-resistant isolates as effectively as sensitive isolates.
Study on Control System of Bacterial Wilt in Flue-cured Tobacco 1. Control Effect of Bacterial Wilt in Tobacco Line NC82 by the Cultural Practice and Fumigation
Lee Jong Doo ; Han Chul Su ; Yu Ik Sang ; Kang Seo Kyu ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 96~101
This experiment was carried out to investigate control efficacy by cultural practice and fumigation of tacterial wilt caused by Pseudomonas solancearum in resistant tobacco line NC82 at the Korea Ginseng and Tobacco Research Institute, Eumseong Experiment Station in 1982 and 1983. The bacterial wilt of tobacco occurred severely from mid-July to last August in applicable temperature and soil humidity for increasing bacteria. Disease severity appeared low and slowly at fumigation and resistant variety treatment. Incidence of bacterial wilt in tobacco line NC82 was
being compared with susceptible variety, NC2326 and
when resistant variety, NC32 was cultivated with soil fumigation treatment. Control efficacy of cultural practices appeared low with
and was not different from resistant variety and fumigation treatment. Control system against bacterial wilt in flue-cured tobacco was accomplished by control efficacy over
when resistant variety(NC82) was cultured after treatment of cultural practices (Tillering after harvest and before transplanting, stalk and root destruction, early transplanting early removal of the mulching film) and soil fumigation(Cylon).
Application of Electrophoretic Methods for differentiation of Trichoderma species
Park W.M. ; Park Y.H. ; Lee E.Y. ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 102~108
These researches were carried out to investigate the morphology of different species of Trichoderma and the possibilities of differentiation of the species of Trichoderma by electrophoretic methods. Variations between the isolates of a species of Trichoderma indicate the genetical differences, also isozyme and protein patterns will be useful to investigate genetical variations betweens the isolates. It might be possible that distinct bands of isozymes of esterase, phosphotase, catalase, catalase differentiate species of Trichoderma.
Studies on Ecology and Injury Characteristics of Japanese Suniperus Bark Borer, Semanotus bifasciatus Mostschulsky
Kim Kyu Chin ; Park Jong Dae ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 109~115
This study was conducted to investigate the bionomics, host range and damage aspect of Japanese juniperus bark borer, Semanotus bifasciatus M., which shoves the severe damage for the Juniperace in Chonnam province, recently. Host plants were Juniperus virginiana, J. chinensis var. kaizuka, J. chinensis, Biata orientalis var. nepalensis, Chamaccyparis ostus and Thujopsis dolabrata. Out of those, J. chinensis var. kaizuka is newly investigated in this study. Damage rate in each area was
in Damyang ana
in Hwasoon. Adults appear once a year, with a peak at late March to early April. Adults emergence during the day showed the peak at 13 to 15 hours and were influenced in the maximum temperature in a day. Attack direction of larva after invasion in the stem was
toward tip and
toward horizon, and the damage in each DBH (Diameter of breast height) was the greatest at
. At period of each stage, egg was
days, larva was
days and pupa was
days. Longevity of adult was 19 days for female and 16 days for male.
Studies on the Nymphal Parasitism, Haplogonatopus atratus Esaki at Hashimoto (Dryinidae) of the Small Brown Planthopper, Laodelphax striatellus Fallen (I)
Kim Jeong Bu ; Kim Chang Hyo ; Cho Dong Jin ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 116~118
This study was carried out to know the percentage of parasitism and host preference of Haplogonatopus atratus (Dryinidae) in the nymphs of small brown planthopper. The percentages of parasitism in the nymphal stage of planthopper at each generation were
for overwinterd generation,
for the 1st generation on barley field and
for the 2nd generation on paddy field, respectively. The percents of the parasitism for the respective instars were
(4th) when various developmental stages of the planthopper had been caged together. No parasitized individual was found for the instars of the 1st, the 5th and the adult.
Four Unrecorded Plant Parasitic Nematodes from Korea (Tylenchida: Nematoda)
Choi Young Eoun ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 119~125
In present work on plant parasitic nematodes, two genera and four species are newly recorded from Korea. The unrecorded species are as follow; Aphelenchoides parasaprophilus, Paraphelenchus myceliophthorus, Helicotylenchus belli, Quinisulcius capitatus.
Seed Infection and Damage to Rice Seeds and Seedlings by Seed-Borne Gerlachia oryzae
Kim Wan Gyu ; Park Jong Seong ; Yu Seung Hun ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 126~131
Twenty one fungi were detected from 26 rice seed samples obtained from Yeongnam Crop Experiment Station, Honam Crop Experiment Station, Chungnam Provincial Office of Rural Development and farmers of Chungnam Province. Gerlachia oryzae was one of frequently detected fungi with
of detection ratio from 22 rice seed samples. The deep-freezing method was selected as the most suitable for routine seed health testing when the blotter method, deep-freezing method and agar plate method were evaluated for efficiency of detecting seed-borne G. oryzae from rice seeds. Our data obtained by seed component plating technique suggested that G. oryzae was present not only on chaff, in endosperm and in seed coat, but also in the embryo. Seed-borne G. oryzae caused seed rot, seedling blight and symptom of brownish discoloration on coleoptile primary and 2nd leaf when the infected seeds were sown in agar of test tube or in soil.
Studies on Damage, Emergence, and Overwintering of the Chestnut Curculio, Curculio sikkimensis in Chonnam Province
Kim Kyu Chin ; Kim Chong Pyo ;
Korean journal of applied entomology, volume 23, issue 2, 1984, Pages 132~136
This study was conducted to investigate the bionomics of Curculio sikkimensis in Chonnam province from 1981 to 1983. Damage rates of the chestunt were
in Gwangyang, and
in Seungju. Adults occurred from the mid-July to the mid-September and showed peak from the mid-August to the early-September. Larvae escaped the chestnut from the early-October to the early-November. Overwintering larvae emerged
in the first year,
in the second year and continously overwintered
in the third year. Larvae showed the highest distribution at
of soil depth during the overwintering. Mortality of overwintering larvae and course of time showed the linearly correlation. Period of each stage was 5.9 days for egg and 17.17 days for pupa. Adult longevity was 9.10 days for female and 7.03 days for male.