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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean journal of applied entomology
Journal Basic Information
Journal DOI :
Korean Society of Applied Entomology
Editor in Chief :
Volume & Issues
Volume 36, Issue 4 - Dec 1997
Volume 36, Issue 3 - Sep 1997
Volume 36, Issue 2 - Jun 1997
Volume 36, Issue 1 - Mar 1997
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Four Unrecorded Species of Spiral Nematode (Hoplolaimidae) from Korea
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 119~125
In a survey of spiral nematode (Hoplolaimidae) in Korea, Helicotylenchus cavenessi sher, 1996, Helicotylenchus paraplatyurus Siddiqi, 1972, Rotylenchus alius Van den Berg, 1986 and Rotylenchus incultus Sher, 1965 were newly found and recorded in Korea.
The First Record of the Family Blasticotomidae (Hymenoptera: Symphyta) from Korea
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 126~128
Blasticotoma filiceti pacifica Malaise, 1931, os recognized from Korea based on a female specimen collected at Mt. Odae-san, Kangwon-do, This is the first record of the family Blasticotomidae from Korea.
Four species of the phytoseiid mites from Cheju Island in Korea (Acari, Phytoseiidae)
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 129~133
Amblyseius (Amblyseius) barkeri, A. (A.) womersleyi, A.(A.) eharai, and Phytoseius (Pennaseius) hongkongensis are recorded in Korea, are redescribed based on specimens from island. The subgenus Pennaseius is recorded for the first time in this country.
A newly Recorded species of Phycitinae, Dioryctria juniperella Yamanaka (Lepidoptera, Pyralidae), Attacking to Juniperus spp. from Korea
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 134~136
A Phycitine species, Dioryctiria juniperella Yamanaka, is reported for the first time from Korea. Larval characters is also shown with its illustration. Juniperus chinensis L., J. chinensis var. globosa H., and J. procumbens S. are known as host plants for the species in this country.
Discovery of Archips dichotomus Falkovitsh and Eana argentana (Clerk) (Lepidoptera, Tortricidae) in Korea
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 137~140
Two species of Tortricinae, Archips dichotomus Falkovitsh and Eana argentana (Clerk) were examined and illustrated for the first time in Korea with their brief redescriptions of the external and genitalic characters.
Occurrence of Major Insect Pests in Machine Transplanted and Direct Seeded Rice Paddy Field
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 141~144
Studies were conducted to investigate the incidense of insect pests in transplanted and direct seeded paddy fields in southern region of Korea. Population dencities of the rice green leafhopper (RGLH: Nephotettix cincticeps Uhler) and rice leaffolder (RLF: Cnaphalocroch medinalh Guenee) were higher in machine transplanted than in direct seeded, but the brown planthopper (BPH: Nilaparvata lugens Stal) and smaller brown planthopper (SBPH: Laodelphax striatellus Fallen) were abundant in direct seeded. However, no significant difference was found between machine transplanted and direct seeded fields in the incidense of rice stem borer (RSB: Chilo suppressalis Walker), whiteback planthopper (WBPH: Sogatella furcifera Horvath), and rice stem magot (RSM: C'hlorops oryzae Matsumura). Occurrence of rice key pests were affected more by transplanting time than other cultural practices. Later transplanting induced higher populations of BPH, WBPH, SBPH, RGLH. However, RSB and RLF caused higher damage in earlier transplanted paddy field.
Occurrence Pattern of Insect Pests on Several Varieties of Potato
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 145~149
Occurrence pattern of major insect pests on 7 recommended potato cultivars in Korea was investigated from sowing to harvesting time at Kangneung and Daegwallyung experiment fields in 1996. Green peach aphid (Mym persicae Sulzer), potato aphid (Macrosiphum euphorbiae Thomas) and beet armyworm (Spodoptera enigua Hubner) were the major insect pests on potato leaves, and wireworm (Selatosomus puncticollis Mot.) was the major pest on tubers. There was a slight difference of average number of aphids per 50 leaves among cultivars; ranged from 22.7 on cv. Dejima to 46.3 on cv. Superior. Numbers of leaves damaged by beet armyworm larvae on cv. Shepody and cv. Jopung were 11.0 and 14.3, and these cultivars are thought to be resistant against the larvae infestation. However, degree of damage on cv. Dejima and cv. Namsuh was higher 10 times than cv. Shepody and cv. Jopung. In wireworm, the percentage of damaged tubers on cv. Irish Cobbler was lowest of 8.1%, and followed by cv. Superior, cv. Dejima, cv. Jopung, and cv. Atlantic. Whereas, those on cv. Namsuh and cv. Shepody were significantly high of 50.0% and 46.8%.
Distribution of pine needle gall midge, Thecodiplosis japonensis Uchida et Inouye (Diptera: Cecidomyiidae), infestations on Japanese red pine, Pinus densiflora S. et Z.
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 150~155
Distribution of pine needle gall midge infestations was analyzed from data collected in young Japanese red pine stands during 1992, and 1995-1996 in Kangwon-do. No significant differences in percentages of infested needle pairs were found among trees and between terminal and lateral shoots within a tree. However, the mean percentages of infested needle pairs increased significantly from the lower crown to the upper. Percentages of infested needle pairs on sample units, consisting 1 terminal and 2 lateral shoots, in the midcrown were best predictors of whole-tree percentages than were other crown levels. Therefore, a sample unit consisting of 1 terminal shoot and 2 lateral shoots per branch were fixed from the midcrown level. Number of tree and sample unit combinations needed to estimate pine needle gall midge infestations with given two levels of precision were determined.
Host Plants and Preference of Brown Chafer, Adoretus tenuimaculatus Waterhouse (Coleoptera: Scarabaeidae)
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 156~165
Host plants and host preference of brown chafer, Adoretus tenuimaculatus Waterhouse (Coleoptera: Scarabaeidae) were investigated in fields and laboratory. 66 kinds of plants in 25 fanlilies were recorded as host during the field survey and 14 kinds in 5 families were verified to be eaten by artificial plant supply. Thus, host plants of A. tertuimaculatus were 186 kinds in 42 families in total including 136 kinds of plants in 32 families from literatures. 50 plants in 19 families were newly recorded as host of A. tenuimaculatus in this study. A. tenuimaculatus was the most frequently visited to J14glans sinensis and Caztanea crenata was the highest damaged plant. C. crenata, Robinia pseudoacasia, Malus sieboldii, J. sinensis, Quercus mongolica, and Q. aliena were considerably highly preferered host plant. However, A. tenuimaculatus never visited to Diospyros lotus, J. nigra, Fraxinus mandshurica, F. rhynchophylla, Pyracantha angustqolia, Paulownia coreana, and Celtis sinensis. Even the same host plant of A. tenuimaculatus. preference was different according to observed place and damage level was also different depending on observed place and time.
Development and oviposition of Orius strigicollis (Poppius) (Hemiptera: Anthocoridae) reared on three different insect preys
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 166~171
To find out an alternative prey of Orius strigicollis Poppius in the laboratory continuous rearing system, cotton aphid (Aphis gossypii), two spotted spider mite (Tetmnychus urticae) and mold mite (Tyrophagus putrescenriae) were tested as alternative prey. Development and oviposition of 0. strigicollis were observed at 25f l0C, RH 60-80% and 16L:8D. Survival rate and developmental period of the nymphal stages of 0. strigicollis was 81. 6% and 11.6 days when fed on cotton aphid, 56.796, 14.6 days, 42.3% and 16.5 days when fed on two spotted spider mite and mold mite, respectively. Total oviposition of 0. strigicollis was 68.5 eggslfemaie fed on cotton aphid, 46.1 and 26.5 eggsifemale fed on two spotted spider mite and mold mite, respectively. Cotton aphid seems to be most suitable prey for rearing 0 . strigicollis among the three prey species tested.
Variation in Insecticide Susceptibilities of the Beet Armyworm, Spodoptera exigua (Hubner): Esterase and Acetylcholinesterase Activities
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 172~178
There was a great variation in insecticide susceptibilities among field and laboratory populations of the beet armyworm, Spodoptera exigua (Hiibner). Unselected laboratory population, which had been reared for 6-7 generations in our laboratory without exposure to insecticides, was more susceptible than its parental field population in all tested insecticides. Two selected laboratory populations with parathion or deltamethrin showed much higher insecticide tolerance than did the unselected laboratory population in their own selection insecticide. The variation of the insecticide susceptibilities was highly correlated with esterase and acetylcholinesterase activities. Field and the selected laboratory populations had lower acetylcholinesterase activities and higher esterase activities than did the unselected laboratory population. Acetylcholinesterase of the field and the selected laboratory populations had higher Km values than did that of the unselected. In a population, Km values were varied among different developmental stages; acetylcholinesterase of the fifth instar larvae had the highest Km value among those of the other larval stages. Twenty one esterase bands were separated on 6.5% nondenaturing polyacrylamide gel from the whole body extracts of the fifth instar larvae. E2, E7, E8, Ell, El6, and El7 esterase bands were developed more frequently in the insecticides-selected populations than in the unselected population. These results suggest that the variation of insecticide susceptibilities of the beet armyworm includes both biochemical mechanisms: target site insensitivity and enhanced activity of detoxification enzyme.
Effects of Pesticides on the Pathogenicity of Entomopathogenic Fungi, Beauveria bassiana and Metarhizium anisopliae
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 179~184
This study was conducted to observe the effects of pesticides on the pathogenicity of entomopathogenic fungi, Beauveria bassiana and Metarhizium anisopliae isolated from Korea. Spomlation of entomopathogenic fungi in SMAY medium that mixed different concentrations of pesticides was similar to control in metalaxyl and tolclofos- methyl treatment but in half recommanded treatment of fenitrothion and mepronil very poor spomlation was showed. Pathogenicity of entomopathogenic fungi dipped in all tested pesticide solution for 1 to 5hr was 100% pathogenicity of M. aniropliae in the pesticide treated chinese cabage fields were similar to control, Bt, teflubenzuron, metalaxyl, and carbofuran treatment but alachlol was below 80%. Pathogenicity and persistence of entomopathogenic fungi in turfgrass when pesticides were posttreatmented were continued to 4 months in iprodione+thiram and tolclofos-methyl treated plots but those of B. bassiana and M. anisopliae was losted in fenitrothion pathogenicity and persistence of in mepronil were nil M. anisopliae from 3 months after treatment.
Screening Resistant Red Pepper Varieties to Meloidogyne hapla and their Resistance Mechanisms
Korean journal of applied entomology, volume 36, issue 2, 1997, Pages 185~191
One hundred seventy five red pepper varieties were bioassayed for selecting resistant varieties to northern rootknot nematode, Meloidogyne hapla. Fifteen native varieties (IT 102794, 104806, 105516, etc) and two imported varieties were proved to be resistant while the currently cultivated varieties such as Hongtap, Kangsan, Hongsil, and Bookang were moderately resistant to the nematodes. Resistant varieties resulted in less nematode infection and development than did the susceptibles. Roots of the resistant strains had significantly higher esterase and peroxidase activities than did those of the susceptibles.