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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 27, Issue 4 - Dec 1988
Volume 27, Issue 3 - Dec 1988
Volume 27, Issue 2 - Sep 1988
Volume 27, Issue 1 - Jun 1988
Selecting the target year
Effect of Solarization for Control of Root-Knot Nematode (Meloidogyne spp.)
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 1~5
This study was carried out to find out the possibility of suppressing the root-knot nematodes (Meloidogyne spp.) of vegetable crops in vinyl house by soil solarization between crop seasons at Suweon in August, 1986. Soils in vinyl house were sterilized by polyethylene film of 0.03 mm thick with and without inner tunnel within a house(single and double layer solarization), and soil temperatures and nematode densities at 5, 15 and 30cm soil depth were recorded. Rootknot nematodes in soil contained in a vinyl bag were completely killed within 48hr at
in an incubator. With double layer treatment, the highest temperatures were
at 15cm and
at 30cm soil depth when outdoor temperature was
, and the lethal temperature above
was recorded for 17 days with 7hr per day at 5cm soil depth from Aug 1 to Aug 31. Due to the increased temperature, root-knot nematode densitiy was suprressed 96,74 and 54% with sigle layer solarization and 100,99 and 98% with double layer solarization at 5,15 and 30cm soil depth, respectively. It is concluded that double layer solarization during hot summer will provide a sufficient level of suppresson on root-knot nematodes remnant in the soil of vegetable crops in vinyl house.
Diapause-initiation Stage and Changes in Proteins of the Fall Webworm (Hyphantria cunea Drury) Pupae
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 6~13
Studies were carried out to investigate the diapause-sensitive stage, the effect of 20-hydroxye- cdysone on diapausing pupae and the changes in pupal proteins of the fitll webworm, HYPha¬ntria cunea Drury. The stage sensitive to diapause-inducing photoperiod lies between 5th and 15th day of the larval development. And the oxygen consumption rate of diapausebound pupae decreased to a mean level of
/g/hr. The 20-hydroxyecdysone was effective in raising the respiratory acivity of 2.5% homogenate of the diapausing fall webworm pupae and in causing a normal adult development of the diapause-bound pupae. The soluble protein content rapidly declined in normally-developing pupae, but in diapause-bound pupae it was more or less static with much higher quantity. And protein bands separated from fat body of diapause¬bound pupae were different from those of nondiapausing pupae.
Life Table Statistics of the Rice Weevil, Sitophilus oryzae(L.)(Coleoptera: Curculionidae) on the Degree-Day Scale
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 14~20
Bionomics of larger Black Chafer (Holotrichia morosa Waterhouse) and Korean Black Chafer( H. diomphalia Bates) with Special Reference to Their Morphological Characteristics and Life Histories
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 21~27
A study was carried out to investigate the morphological characteristics and life histories of H. morosa and H. diomPhalia during the period from 1984 to 1986. The head capsule width and bOdy length of H. Morosa larvae were slightly greater than those of H. diomPhalia. Otherwise, the two species looked very similar and were hard to be differentiated from each other in all life stages. H. morosa adults emerged in late June and laid eggs in soil during the period between mid July and mid August. Larvae developed by September to the last(3rd) instar which overwintered to pupate in late May. H. diomPhalia adults emerged from mid August but remained under the soil until next spring after which females laid eggs in soil from late May to early July. Larvae developed in most cases to the last instar by September and overwintered thereafter. Unlike H. morosa, they resumed feeding next April and began to pupate in late July. The egg periods of H. morosa and H. diomPhalia did not significantly differ but the larval and pupal periods of the latter were longer than those of the former.
Parasitoids of Henoseilachna vigintioctomaculata (Moschulsky) (Coleoptera: Coccinellidae) in Kyonggido area, Korea.
;D.K. Reed;;R.W. Carson;
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 28~34
Henosepilachna vigintioctomaculata (Motschulsky) (Coleoptera: Coccinellidae), important pests of agricultural crops in Korea, including eggplant and potato, were collected in the Kyonggido area each summer from 1983 to 1986. Data were recorded for rates of parasitism against each host stage and seasonal activity. The parasitoids NothoserPhus afissae (Watanabe), (Hymenoptera: Proctotrupidae), Uga menoni (Kerrich), (Hymenoptera: Cha1cididae), and Pediobius foveolatus (Crawford), (Hymenoptera: Eulophidae) were reared from the host insects. A solitary larval parasitoid, N. afissae, was reared from 2nd to 4th instar brval hosts, with parasitism being highest in the 3rd instar collection. U. menoni, a solitary larval-pupal parasitoid, was reared from 3rd instar larvae to pupae, and parasitism was highest in the pupal collection. N. afissae and U. menoni occurred during June to September. N. afissae showed relatively high parasitism during the entire study period as compared with other species, while parasitization by U. menoni was highest in July. P. foveolatus, a gregarious larval parasitoid, did not generally appear until September, although it appeared in early August in the southern part of Korea. The number of P. foveolatus emerging from a mummy varied, ranging from 7 to 26 (mean = 13. 8).
Evaluation of Two Nematicides in the Initial Population Changes of the Soybean Cyst Nematode
;Robert D. Riggs;
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 35~40
The control efficiency of the nematicides, aldicarb and carbofuran, in the population dynamics of the soybean cyst nematode(Heterodera glycines)was evaluated. Nematode viability, penetration and reproduction were examined in greenhouse experiments. Nematode viability(movement) was greatly reduced by aldicard, but mot by carbofuran. Penetration was inhibited by both chemicals. Percentages of Pentration relative to the untreated check 3 days after treatment were 0.4% and 1.7% for aldicarb and carbofuran, respectively. Systemic effect ot the nematicides were observed with both nematicides but effect was greater with aldicarb than with carbofuran. The total effect of the nematicides, applied ay the time of planting soybean in infested soil, appeared to be less than the sum of the contact and systemic effects on the initial population dynamics of H. glycines.
Effect of Nutrients and pH on the Growth and Sporulation of Four Entomogenous Hypomycetes Fungi (Deuteromycotina)
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 41~46
Growth of Metarrhizium flavoviride var. minus and Hirsut lle strigosa showed good yield in the carbon source media adding dextrose, starch and saccharose, but Hirsutella sp. from korea greq well in the other media except in the dextrose media. Yeast extract was necessary for the mecelial growth of the fungi, but the fungi tested in this experiment showed a difference in the amount of required yeast extract. Growth of Nomurea rileyi was fastidious in the carbon and nitrorgen sourced media and the optimum pH of the media for growth was at 6.7. Sporulation of M. Flavoviride var. minus was high on media, containing 1%~2% of yeast extract as nitrogen and carbon source media, but N. rileyi sporulated abundantly on the media with nitrogen and dextrose.
Phtophagous Insects Associated with Weeds in Southern Part of Korea
Korean journal of applied entomology, volume 27, issue 1, 1988, Pages 47~54
Phytophagous insects were surveyed for biological control of weeds in the southern part of korea from April 20 to July 31, 1987. Phytophagous coleopteran insects representing 12 families, 52 genera and 61 species, hemipteran insects 7 families, 18 genera and 20 species, homopteran insects 4 families, 16 genera and 21 species, hymenopteran insects 2 families, 2 genera and 3 species, and orthopteran 2 familes, 6 genera and 6 species were recorded from 58 weeds. Some chrysomelids and orthopteran insects were potential agents for biological control of weeds.