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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 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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Fungal Development, Respiration and Activity of Oxidative Enzymes in Rice Plants Inoculated with Pyricularia oryzae in Both Compatible and Incompatible Combinations
Chung Bong-Koo ; Chung Hoo-Sup ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 113~122
Appressorial formation of Pyricularia oryzae on leaves showed no marked difference between highly resistant Tongil and susceptible Norm No. 6. Race N-2 of the blast fungus penetrated directly into motor cells of susceptible cultivar Norm No. 6, later extensively spreading hyphae were developed, while in the cultivar Tongil, after penetration, no further hyphal extension resulted. In discoloration of infected tissues, the highly resistant cultivar Tongil not only discolored rapidly, but also the percentage of discolored cells was higher than the susceptible cultivars, Jinheung and Norm No. 6. The respiratory rate, was generally higher in infected tissue than in healthy tissue. No significant difference in the respiration rate of resistant Suwon No. 180 was not found between the infected and healthy leaf tissue, whereas, in susceptible Jinheung, a marked increase in respiratory rate was caused by blast infection. The respiratory rate increased at the appearance of the first visible symptom in all cultivars resistant or susceptible. Higher peroxidase activity was found in infected tissues as compared with healthy tissue. Peroxidase activity increased in resistant and susceptible reactions. Particularly, in resistant reaction, the increase of the activity was more pronounced. In highly resistant reaction, there was no difference in peroxidase activity between healthy and infected tissues. Ascorbic acid oxidase, hydroquinone oxidase and catechol oxidase had the same trend as the peroxidase. In contrast, activity of catalase rather decreased in leaf tissues infected with compatible races of the fungus.
Classification of Pseudomonas solanacearum isolates from tobacco plants in Korea
Yi Young Keun ; Kim Jeong Hwa ; Kang Seo Kyu ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 123~127
Fourteen isolates of Pseudomonas solanarearum virulent to tobacco cultivars were selected among isolates obtained from tobacco plants shelving wilt symptoms throughout the country during
. The fourteen isolates were classified into two races based on reactions in eggplant, tomato, red pepper, potato and tobacco, and also classified into biochemical type 1 and type 4 according to physiological characteristics.
Starch Content in Leaves of Spring Barley in Relation to Adult Plant Resistance to Powdery Mildew (Erysiphe graminis f. sp. hordei)
Hwang Byung Kook ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 128~132
Starch contents in healthy and powdery mildew-infected spring barley leaves at first and fifth leaf stages were measured at different intervals after inoculation. Different patterns of starch accumulation in the susceptible cultivar Peruvian and the adult plant resistant cultivar Asse were found in infected first and fifth leaves. At the early phase of infection, the amount of starch in infected first leaves was slightly changed in both cultivars. During colony development and sporulation, the decrease in starch content was .more marked in the susceptible Peruvian, whereas the amounts of starch in the adult plant resistant Asse increased during colony development and then decreased sharply before and after sporulation. In heavily infected first leaves, the susceptible cultivar Peruvian showed a drastic decrease in starch content. In the adult plant resistant cultivar Asse, the higher amount of starch retained in these infected leaves, regardless of infection intensity. The regulation of starch accumulation in mildewed barley plants at different leaf stages was discussed in relation to adult plant resistance of spring barley.
Study on Fumigation Method of Harvested Fresh Chestnuts Produced in Korea
Hah Jae-Kyu ; Lee Cheon-Koo ; Yu Ki-Yull ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 133~137
An experiment was conducted to find out the proper and effective fumigation method for harvested fresh chestnuts produced in Korea. Fumigation with phosphine, causing damages on chestnuts by rapid corruption or change in color on pericarp, did not completely kill chestnut curculio and nut fruit tortrix larvae in harvested fresh chestnuts regardless of long exposure of chestnuts to phosphine. Any damages not being appeared by fumigant, fumigation with methyl bromide at
for 4 hours at
would retain the low control against inclusion of any chestnut pests tested. Though fumigation with methyl bromide at
for 24hours was effective against any larvae of chestnut insects control, they caused serious damages by making the flesh surface of harvested fresh chests dark or dense brown. However, fumigation with methyl bromide at
for 4 hours at
resulted in complete kill of larvae of Curculio dentipes and Carpocapsa splendana in harvested fresh chestnuts with no significant damages on the treated fruits.
Chemical Control of the Pine Gall Midges(Thecodiplosis japonensis Uchida et Inouye) VI. Effect of the Root-Zone Treatments of Some Granular Systemic Insecticides
Choi Seung-Yoon ; Park Hyung-Man ; Chung Bu-Ken ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 138~141
The insecticides aldicarb
, and disulfoton
were evaluated in the field for the control of the pine gall midges(Thecodiplosis joponensis Uchida et Inouye) at rate of 5 a.i.g/cm dbh using the method of circle-furrow treatment(ca. loom in furrow depth), apart 50cm Iron the trunk of the pine trees. In addition, for improving the application method of granular insecticides the effects of conventional circle-furrow treatment were compared with those of pit treatments and radical-furrow treatments. A single root-zone treatment of aldicarb and carbofuran i the pine trees was significanlty effective for the pressure of the gall incidence by the insects. Control effectiveness in three-pit treatment was identical with those in conventional circle-furrow treatment. The pit treatment compared with the circle-furrow and radical furrow treatments would be a further feasible method in saving labor cost.
Development of Computer Mapping System MAPSYS for Pest Management Research
Song Y.H. ; Kim C.H. ; Choi J.S. ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 142~145
A computer mapping system MAPSYS for data management in pest management research was developed and evaluated The computer mapping program could be used in rapididly summarizing the data from pest population management and forecasting research as well as in studying the distribution of crops, relative pest species, and the other environmental factors.
Survey on Potato Parasitic Nematodes
Choi Young-Euon ; Choi Dong-Ro ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 146~152
Survey on potato parasitic nematodes has been undertaken in order to find distribution of the nemic fauna. 41 soil samples were taken from potato fields in Gyeongbug, Gyeongnam and Gangweon provinces. Twenty four species belonging to 16 different genera were identified. Potato cyst nematode, Globodera rostochiensis was not found in the areas. Potato-rot nematode, Ditylenchus destructor and stem nematode, Ditylenchus dipsaci were found from several potato fields and population density high and showed damage to the crops. Root-lesion nematode, Pratylenchus minyus, Pratylenchus penetrans, Pratytenchus thornei and Pratylenchus vulnus were found and their population of these four species were high depending on the fields. Root-knot nematode, Meloidogyne hapla and Meloidogyne incognita were found. M. hapla was found only in Gangweon province and the population density was high. M. incognita was found at Milyang in Gyeongnam province. Spiral nematode, Heticotylenchus digonichus, Helicotylenchus dihystera, Helicotylenchus pseudorobustus, Rotylenchus orientalis and Rotylenchus pini were found. Aphelenchoides saprophilus, Criconemoides informis, Ditylenchus destructor, D. dipsaci, Helicotylenchus digonichus, H. dihystera, Hemicriconemoides intermedius, Meloidogyne hapla, Psilenchus hilarulus, Pratylenchus minyus, and Xiphinema americanum were first found from potato fields in Korea.
Occurrence of Major Diseases in Vegetable Growing under the Furnihsed Condition in Southern Part of Korea
Choi Jin-Sik ; Park Chang-Seuk ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 153~158
The study was conducted to obtain the basic information on the diseases epidemics of vegetable crops grown in Namji, Jinju, Gimhae and Suncheon under the extremely varied and specified conditions, plastic film house. The disease survey was conducted from the end of April, 1951 to April 1982. Leaf mold and late blight were serious foliar disease in tomato during the seedling stage, especially when the infected seeds were sown. The diseases increased rapidly 35 days after seeding. In both continuous cultivation of cucumber and rotation with upland crops, incidence of Fusarium wilt was severe while incidence of the disease was negligible in cultivations after paddy rice or grafting on pumpkin. Downy mildew of cucumber was severe in Jinju and Suncheon area, however, it was not so serious in Namji area where the growing season of cucumber was unfavorable for the maximum disease incidence. Cucumber mosaic virus disease was prevalent in the areas surveyed and the disease incidence was increased rapidly after June. Powdery mildew prevailed at the early stage of cucumber growth after transplanting in Namji area. Root rot and wilting caused by Phytophthora capsici was as the most destructive disease in pepper grown under the vinyl house, especially in Namji and Jinju area where the pepper has been cultivated intensively. The Phytophthora attacked most parts of young plants during the winter time and then induced crown rot on the adults plants. Cultivation of pepper in vinyl house was almost impossible because of the Phytophora disease by the end of June. Virus diseases to tomato plants were prevalent throughout the surveyed area and the damage was also severe. In Jinju and Gimhae area leaf mold and late blight showed high infection rate in tomato during the harvest time.
The Present Status of Damage and Control of Pine Gall Midge in Korea
Ko Je Ho ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 159~162
The Eclogy of the Pine Needle Gall Midge (Thecodiplosis japonensis Uchida et Inouye) ana Its Control Strategies
Hyun Jai Sun ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 163~166
The pine needle gall midge, Therodiplosis japonensis Uchida et Inouye, is the most important insect pest. It requires two different habitats for the development; on trees and under the ground. The habitat specific mortality rates ere
for the respective habitats. The key developmental stage is the prepupa, and the key mortality factor is the moisture contents of the soil and its variability. Since the insect is an exotic, the population status is the periphery and in the source of infestation are considerably different. Such a difference in habitats and the population status of the insect should be considered in relation to suppression of the insect. The control strategies should be directional and rational based on the reality of the pest status. There have been substantial information on the control methods of the pine needle gall midge, and each control method has an important place, but none has always provided a satisfactory solution to the many problems associated by this insect. These methods should be applied to a system based on the ecology of the insect. There should be continued support for directed effort on the development of operational management systems for the insect: specifically, estmation of the critical economic injury level, and of the absolute density of the insect.
Silvicultural Control of Pine Blister Rust
Yi Chang Keun ;
Korean journal of applied entomology, volume 21, issue 3, 1982, Pages 167~174