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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
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Volume & Issues
Volume 28, Issue 4 - Dec 1989
Volume 28, Issue 3 - Sep 1989
Volume 28, Issue 2 - Jun 1989
Volume 28, Issue 1 - Mar 1989
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Biochemical Characteristics of the Nuclear Polyhedrosis Viruses of the Fall Webworm, Hyphantria cunea, and the Silkworm, Bombyx mori
Korean journal of applied entomology, volume 28, issue 3, 1989, Pages 105~112
The nuclear polyhedrosis viruses of Bombyx mori (BmNPV) and Hyphantria cunea (HcNPV) were characterized by electron microscopic observation, SDS-PAGE of polyhedral and virion proteins, and restriction endonuclease analysis of viral DNAs. Polyhedra of BmNPV were octadecahedral in shape with the diameter of
, whereas those of HcNPV showed irregular appearances having the diameter of
. Under alkaline protease inactivated condition, polyhedral proteins of two NPVs were resolved into a major polypeptide, 30~31 KD, and several minor polypeptides by SDS-PAGE. Examination of virion proteins by silver staining after SDS-PAGE showed that BmNPV was composed of 47 polypeptides with M.W. range of 9.6~112 KD and HcNPV was composed of 48 polypeptides with M.W. range of 9.4~111 KD. The approximate genome size of two NPVs were determined by restriction endonuclease analysis: BmNPV and HcNPV were 114.6 Kb, respectively.
Effect of Extracts from Some Selected Wild Plant Species on Larval Development and Adult Oviposition in Heliothis assulta
Korean journal of applied entomology, volume 28, issue 3, 1989, Pages 113~119
Larval development and adult oviposition of the Oriental tobacco budworm, Heliothis assulta were examined with tobacco leaves sprayed with aqueous or ethanolic extracts from ten selected wild plant species. High larval mortality was observed with extracts from Rhamnus davurice. Persicaria hydroPiPer, Forsythia koreana, Trifolium repens, Styrax japonica, Ginkgo bi/oba, and vilis amurensis. Most of larval mortality occurred during first and second instar, apparently due to antifeeding effects of plant extracts. These extracts also prolonged developmental period of survived larvae and increased the number of larval molts. Oviposition was not affected as much as the larval mortality, but Rhamnus davurice and Styrax jaPonica extracts reduced the number of eggs laid by more than fifty percent.
Nematodes Associated with Rice in Korea III. Survey on Nematode Species and Distribution Associated with Rice
Korean journal of applied entomology, volume 28, issue 3, 1989, Pages 120~145
The nematodes associated with rice in Korea were investigated at 1,160 rice paddies in 387 localities during the last 3 years since 1985. As the result, 35 nematode species were found associated with rice in Korea. Among them 26 species were newly reported from rice in Korea; and 15 species, Criconemoides informis, Criconemella paragoodeyi, Criconema (Criconema) jaejuense, Ditylenchus longicauda, Eutylenchus africanus, Merlinius n. sp., Meiodorus n. sp., Ogma(Homogma) serrata, Ogma(Homogma) insulicum, Orientylus orientalis, Paratylenchus lepidus, Pararotylenchus pini, Triversus n. sp., Tylenchorhynchus clavicaudatus, Tylenchorhynchus nudus were firstly added for the world as associated with rice. Criconemella paragoodeyi, Merlinius n. sp., and Ditylenchus longicauda were distributed all over the country with high population density, and expected as potentially important rice parasitic nematodes. Hirschmanniella imamuri was distributed all over the country with high population density. Hirschmanniella oryzae was also distributed along with Hirschmanniella imamuri in the southern part of the country, but gradully disapeared as it goes to the northern part.
Development of Acaricide Resistance and Cross-Resistance in Tetranychus urticae(Acarina: Tetranychidae)
Korean journal of applied entomology, volume 28, issue 3, 1989, Pages 146~153
These studies were conducted to investigate development of chemical resistance in two-spotted spider mite (Tetranychus urticae Koch) trough single selection for a given period of time with five acaricides including carbophenothion and ethion of organo-phosphate compound, dicofol of organo-chlorine compound, cyhexatin of organo-tin compound, biphenthrin of synthetic pyrethroid compound; and to examine cross-resistance among the acaricides to the selected populations. The development of chemical resistance of two-spotted spider mite was greatly varied under single selection of the each five acaricides. The carbophenothion- and the ethion-populations at the 22nd and the 24th selected generations showed 156- and 64.1-fold resistant levels, respectively, as compared with the susceptible population. However, the dicofol population at the 28th selected generation exhibited 39.7-fold resistant level, and the biphenthrin population at the 24th selected generation revealed 25.2-fold resistant level, while the cyhexatin population at the 20th selected generation showed 13-fold resistant level. The carbophenothion-selected population showed high cross-resistance to ethion, and low cross-resistance to dicofol and biphenthrin. The ethion-selected population revealed also high cross-resistance to carbophenothion. The dicofol-or the biphenthrin-selected populations, however, exhibited moderate cross-resistance to carbophenothion and ethion. Meantime, the cyhexatin-selected population showed high cross-resistance to ethion and carbophenothion.
Systematics of the Subfamily Gelechiinae(Lep., Gelechiidae) in Korea(I) Genera Parachronistis Meyrick and Neochronistis Park gen. nov.
Korean journal of applied entomology, volume 28, issue 3, 1989, Pages 154~166
A new genus, Neochronistis which is closely related to Parachronistis Meyrick and a new species of the latter including two previousely known species are described with illustrations of external characters and male or female genitalia. Also a species of the latter, Parachronistis maritima Omelko is reported for the first time from Korea. Newly described species are Parachronistis geniculella sp. nov. and Neochronistis hodgesi sp. nov.
Integrated Control of Vector Mosquitoes with Native Fishes (Aplocheilus and Aphyocypris) ad Bacillus thuringiensis(H-14) in Natural Rice Fields of Korea
Korean journal of applied entomology, volume 28, issue 3, 1989, Pages 167~174
A confined field assessment on the integrated control of vector mosquitoes (Anopheles sinen- sis and Culex tritaent'orhynchus) was conducted by timely treatment of Bacillus thuringiensis(H-14) formulation in the presence of larvivorous fish (Aplocheilus lalipes) in natural rice fields of
at Yongam, South Korea Cholla Province from July through October in 1988. In presence of larvivorous fish (Aplocheilus) at lower density of 0.6 fish per
water surface, mosquito vector control rates ranged 55. 0~57. 6% from July through August, and when the mosquio density started to increase with over 10 larvae on the average per sample, B.t.(H-14) formulation treatment at the rate of 1. 0 Kg/ha made 100% vectors reduc¬tion in 24 hours, the control sustained above 98% until the test was terminated on October 11th. In the fish introduced rice paddies with Aphyocypris chinensis at the density of above 1. 5 fish per
, a satisfactory degree of vector control was obtained by 88. 2~96. 7% in 2 week period until September 21st. In the absence of larvivorous fishes, B.t. (H-14) treatment made 100% control in 24 hours, however, vector population rebound appeared in day 7, required to make additional treatment to suppress population down.