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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 28, Issue 4 - Dec 1989
Volume 28, Issue 3 - Sep 1989
Volume 28, Issue 2 - Jun 1989
Volume 28, Issue 1 - Mar 1989
Selecting the target year
Parasitylenchus orthotomici sp. n. (Tylenchida: Allantonematidae) from Orthotomicus angulatus (Coleoptera: Scolytidae), with Note on Parasitism
;Harry K. Kaya;Patrick Shea;
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 1~3
Parasitylenchus orthotomici sp. n. is described as a nematode parasite of Orthotomicus an¬gulatus in Korea. In a sample of 170 beetles randomly collected from Pinus densiflora S. et. Z, 51. 8% were parasitized by nematodes. The number of nematodes per bark beetle was ranged from 1 to 97. The parasitisms of F, generation were ranged from 43.2% to 52%. There was no positive tendency in nematode parasitism between sun-side and shade-side.
Supplementary Notes on the Bark and Ambrosia Beerles of korea
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 4~9
One species of pin-hole bore and fifty-two species of bark and ambrosia beetles were collected in 1987. Of fifty-three species, two species, Hylurgops palliatus and Xyleborus amputatus were recorded for the first time to the fauna.
Cross Infectivity of Nuclear Polyhedrosis Viruses to the Common Armyworm, Pseudaletia separata
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 10~15
This studies were carried out to selected high pathogenic nuclear polyhedrosis viruses(NPVs) against Pseudaletia(=Leucania) separata for the introduction of microbiol control of the insect NPV in Korea. Among 21 NPVs, Sesamia inferens and 4 P. separata NPV strains were highly pathogenic against P. separata when fed orchard grass leaves smeared virus suspension on the 2nd instar larvae. Three NPV strains (LsNPV-F, LsNPV-G, LsNPV-Y) were more susceptible to the younger instar than the older instar P. separata larvae when fed artificial diet mixed with the virus to the insect.
Delia platura(Meigen): Bionomics and It`s Resistance to Host Plants
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 16~22
A series of experiments was undertaken to learn bionomics and gowt plant resistance of the seedcorn maggot, Delia platura(Meigen), under controlled(24
5%, and LD 16:8h)and field conditions. The preoviposition period for the flies was 9 days. The females survived for an average of 50(3-77) and the males for 24(1-59) days. A greater proportion of flies emerged between 6:00 A.M. and 9:00 A.M., soon after the sun rise. After the over-wintering, adults started to emerge in mid-April from pupae located near the soil surface, and peaked in late April by others located deeper. The sex ratio was about 1:1 with total samples of 1,609 females and 1,641 males. Weight of pupae reared from onion was heavier than those from other diets in the laboratory, however its size was samller than that of natural flies. Considerably more eggs were laid near pea seeds than other hosts tested. Among beans, Bapmitkong with blue seed-coat and a cowpea bean strain were preferred for oviposition. 'Namcheon` cultivar was found to be susceptible to attack by the larvae in the laboratory.
Studies of the Insecticide Resistance in the Green Peach Aphid, Myzus persicae Sulzer (V). Development of Cypermethrin and Pirimicarb Resistance, and Cross Resistance
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 23~27
The green peach aphid(Myzus pericae Sulzer) was selected over 20 generations with cypermethrin and pirmicarb, respectively. The resulting resistant strains were tested to inverting-ate the development of insecticide resistance and cross-resistance to some insecticides in the laboratory. The development of insecticide resistance against green peach aphid at the 20th selected generation was greatly varied with the insecticides: 20.5 fold for cypermethrin and 3.2 fold for pirimicarb compared with the parent strain. The cypermethrin selected strain exhibited cross resistance to acephate and pirimicarb, and pirimicarb selected strain to acephate and cypermethrin, respectively. Demeton-S-methyl, however, has not been shown cross-resistance by the selected strains.
Host Preference of Lariophagus distinguendus Foerster (Hyminoptera : Pteromaidae) for the Instars of Rice Weevil (Sitophilus oryzae(L.)) (Coleoptera : Curculionidae) and Sex Ratio of the Parasitoid in Relation to the Host
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 28~31
Lariophagus distinguendus,an ectoparasitoid of rice weevil, laid its eggs exclusively on the third and fourth larvae, with the preference for the fourth larva. The sex ratio of the pa¬rasitoid can be regulated by the female parasitoid on the basis of the host size available at the time of oviposition.
Joint Toxic Action of Insecticide Mixtures to the Cupermethrin-and Pirimicarb-Selected Strains of Green Peach Aphid(Myzus pericae Sulzer)
Korean journal of applied entomology, volume 28, issue 1, 1989, Pages 32~36
The joint toxic action of mixtures of cypermethrin or pirimicarb with one of other insecticides (acephate, cypermethrin, demeton-S-methyl and pirimicarb) on the cypermethrin or picimicarb-selected green peach aphid (Myzus persicae Sulzer)was investigated. The responses depended on the choice and ratios of insecticide combination. In the cypermethrin-selected strain bioas-say, mixtures of test insecticides showed no synergistic effect. On the other hand, the maxi-mum synergistic effects for the pirimicarb-selected strain were obtained at the 8 : 2 ratio of pirimicarb and demeton-S-methyl exhibited antagonistic effect.