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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean journal of applied entomology
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Journal DOI :
Korean Society of Applied Entomology
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Volume & Issues
Volume 42, Issue 4 - Dec 2003
Volume 42, Issue 3 - Sep 2003
Volume 42, Issue 2 - Jun 2003
Volume 42, Issue 1 - Mar 2003
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Scolytidae, Platypodidae, Bostrichidae and Lyctidae Intercepted from Imported Timbers at Busan Port Entry
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 173~184
Beetles belonging to the families Scolytidae, Platypodidae, Bostrichidae, and Lyctidae intercepted from imported timbers at Busan port were investigated from March 1 to November 30 in 2000. In addition, hosts imported country were examined. A total of 52 species of within 23 genera was intercepted from nineteen species of timbers or logs from fifteen countries. In Scolytidae, 35 species of 16 genera in three subfamilies were identified 12 species in Xyleborus, 6 species in Ips, 3 species in Trypodendron, 2 species in Arixyleborus, and 12 species of all different genera including Alinphagous. Scolytidae were intercepted from 16 species of timbers in 13 genera imported from 11 countries. The highest beetles were intercepted from Malaysian lauan. In Platypodidae, 9 species of one genus (Platypus) were intercepted from 6 species of timbers in 4 genera imported from 6 countries including Australia. The highest numbers were intercepted from Malysian lauan. In Bostrychidae, 5 species of 4 genera in two subfamilies were intercepted from 6 species of timbers in 4 genera imported from four countries. In Lyctidae, Trogoxylon sp., Minthea sp., and Minthea rugicollis were intercepted from 3 species of timbers in 2 genera imported from 3 countries.
Phytoseiid Mites (Acari: Phytoseiidae) from Korean Apple Orchards and Their Ecological Notes
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 185~195
Phytoseiid mites are important predators of spider mites, rust mites and many of insect pests as well. From two-year (2001-2002) survey of apple orchards in Kyoungbuk and Suwon area, 13 species of phytoseiids, 12 species of the genus Amblyseius and one species of the genus Typhlodromus were found. Among them, Amblyseius womersleyi was the most dominant followed by A. rademacheri, A. orientalis, and A. makuwa. Amblyseius rademacheri and A. makuwa were mainly found from ground vegetation. Keys to genera and species were presented with some pictorial details and ecological notes of each species. Further discussion on systematics of the family Phytoseiidae and use in apple IPM were suggested.
Predatory Preference and Predation Amount of Oligota kashmirica benefica (Coleoptera: Staphylinidae) about Spider Mites
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 197~201
These studies were carried out to investigate the amounts and preferences of Oligota kashmirica benefica to 3 species of phytophagous mites and cannibalism. The number of mites consumed by an adult beetle tended to increase as prey density and temperature go up. In the constant temperature of 25
, average number of consumed adult mites by an adult of O. kashmirica benefica to Panonychus citri, Tetranychus urticae and T. kanzawai were 21.9, 13.5, and 14.1 for a day, respectively. The number of mites consumed by larva of O, kashmirica benefica tended to increase as the larva grow up. First, 2nd and 3rd larva of the beetle consumed 2.8, 11.2 and 25.4 adult of citrus red mite (P. citri) for a day, respectively. Total number of mites consumed during larval stage (5 days, 25
) to P. citri, T. urticae and T. kanzawai were 77.7, 61.3 and 73.0, respectively. The larva and adult beetle did not prefer specific species in the P. citri, T. urticae and T. kanzawai, and when there was no diet, few incidents of cannibalism between different developmental stage were observed.
Biological Characteristics and Mass Rearing System for Cadra cautella (Walker) as a Substitute Diet for Natural Enemies
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 203~209
Biological characteristics of the almond moth, Cadra cautella, of which eggs will be substitute diets for Orius spp. and Trichogramma spp., were investigated and a mass-rearing system for the moth was developed. At 25
, egg, larval, and pupal period was 4.2, 29.8 and 8.3 days, respectively, and adult longevity was 5.8 days for female and 4.8 days for male. Total number of eggs at 20, 25 and 30
was 128.9,207.9 and 139.9, respectively. The moth could be successfully reared with all food substrates tested, of which rice bran (50%)+chick feed (50%) assumed to be proper for massrearing in view of cost. Eggs could be stocked at 9 C for 7 days, representing 82% hatchability. In the rearing cage (16
9cm) used, 1,000 eggs was better for initial level of inoculation, showing relatively high emergence rate and adult weight. Mass-rearing procedures were explained in detail.
Effects of Temperatures on Development and Reproduction of Dichromothrips smithi (Thysanoptera: Thripidae)
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 211~216
Development and reproduction of Dichromothrips smithi were investigated under different temperatures, Durations of the development from egg to pre-adult of D. smithi were measured under 11 temperature ranges and it was 44.0 days at 13
and 8.7 days at 32
. Developmental zero point and total effective temperature for the development of egg and larva, prepupa, pupa and for the complete development (egg to emergence) were 9.4, 8.9, 10.5, 10.8 and 9.5
, and 46.1, 90.1, 23.9, 41.2 and 204.4 degree days, respectively. The adult longevity was 28.3 days at 15 C and 14.3 days at 30
. The highest average fecundity per female was 69.3 at 25 C. The highest intrinsic rate of natural increase (r
m/) and the highest net reproduction rate (R
o/) were 0.241 at 30
and 56.56 at 25
. The optimum temperature range for the growth of D. smithi was between 25
Effects of Temperature on Reproduction and Development of Firefly, Luciola lateralis(Coleoptera: Lampyridae)
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 217~223
Effects of temperature on the development and reproduction of the Luciola lateralis were investigated at various temperatures. The development time of eggs, larvae, and pupae were shorter at higher temperatures than at lower ones. The insect did not develop at 10
. The hatchability was 61.5% at 15
, 73.9% at 20
, 93.3% at 23
, 91.8% at 25
, 74.0% at 27
, and 46.0% at 30
, indicating the best hatchability rate at the temperature condition of 23 DC. Larval periods were 341.5:t 23.2 days at 15
17.5 days at 20
, and 250.9
11.7 days at 25
. Pupal periods were 94.7
11.5 days at 15
9.1 days at 20
, and 18.5
7A days at 25
. Emergence rate was 23.3, 89.3 and 80.7%, respectively at the above temperatures. Adult longevity of female was 18.0 days at 15
, 2004 days at 20
, 10.7 days at 25
, and 5.8 days at 30
. Mean fecundity per female was higher at 20
compared with at other temperatures. The developmental zero point temperatures (1) and the total effect temperatures (I<) of egg, larva, pupa, and complete development were 10.6, 14.0, and l3.1
and 214.8, 1,564.8, and 229.2 degree-days, respectively. Mean generation time in days (T) was shorter at higher temperature. Net reproductive rate per generation (Ra) was the lowest at the highest temperature as well as at the lowest, and it was 177.19 which was the highest at 23
. The intrinsic rate of natural increase (r
m/) was highest at 27
as 0.019. As a result, optimum range of temperature for L. lateralis growth was between 20-25
Insecticide Susceptibility in the Different Larva of Tobacco Cutworm, Spodoptera litural Fabricius (Lepidoptera: Noctuidae) Collected in the Soybean Fields of Milyang, Korea
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 225~231
The susceptibility of the different larval stages of Spodoptera litura to nine insecticides was evaluated using the perilla leaf-dipping method. Median lethal concentration (
) was increased with larval development in the range of 0.5 ppm to 5.6 ppm, 9.9 ppm to 27.9 ppm, 9.6 ppm to 125.1 ppm and 24.3 ppm to 546.6 ppm in the 1st, 2nd, 3rd and 4th instar, respectively. The tolerance ratio (TR), which is the TR of 90 percent lethal concentration (LC/ sub 90/) to the recommended concentration, was 0.04 to 0.8 in the 1 st, 0.2 to 7.5 in the 2nd, 0.7 to 115.3 in the 3rd and 1.2 to 485.4 in the 4th instars. Lower D
and DTR, which is the difference between the
and the TR of 4th and other instars, respectively, were observed in chlorfenapyr, chlorpyrifos and EPN while higher ones were lufenuron, chlorfluazuron and teflubenzuron. These results mean that insecticides with lower D
and DTR are effective in controlling larva of S. litura collected in Milyang, Korea.
Release Level of Amblyseius fallacis Garman (Acarina: Phytoseiidae) for Biological Control of Panonychus citri McGregor (Acari: Tetranychidae) on Citrus
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 233~240
The effect of density suppression of Amblyseius fallacis (Garman) against Panonychus citri (McGregor) on citrus tree introduced with some different ratio was investigated. When it was introduced with over 16:1 (Panonychus citri: A. fallacis) ratio, Panonychus citri was suppressed very effectively. And in case of introduced once or two times with 20: 1 ratio when the density of Panonychus citri was reached 0.5 and 1.0 per leaf, the density of A. fallacis was formed highly, but the suppression effect against Panonychus citri was not effective. Also, the density changes of P. citri and A. fallacis on the citrus tree released with 10: 1 ratio (P. citri: A. fallacis) when the density of P. citri was reached about 0.1 per leaf in plastic film house were investigated. In case of released twice at the interval of 10 days, the density of A. fallacis was high and P. citri was suppressed so effectively over two month. On the inside of canopy of the citrus tree planted in plastic film house, the air temperature was much lower than on the outside of canopy, while relative humidity was much higher.
Biological Characteristics of the Aphid-eating Gall-midge, Aphidoletes aphidimyza (Diptera: Cecidomyiidae) as a Biological Control Agents of Aphids
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 241~248
The aphid-eating gall-midge, Aphidoletes aphidimyza (Rondani), as predator of aphids was wildly used as one of the biological control agents for control of several kinds of aphids. Their some kinds of biological characteristics were examined. The developmental periods of A. aphidimyza from egg to adult with the green peach aphid as prey were 40 and 12 days at 15
, respectively. Supplying the cotton aphid as prey, their developmental periods were shorter than with the green peach aphid. In case of the preservation of pupa in the cold condition, emergence rates were over 90% for 1 and 2 weeks at 5
, respectively. Adult females of A. aphidimyza began mating and laying eggs at 2-3 days after emergence, and they laid about 200 eggs for lo days of average life span. Most of adults were emerged from pupa at 6 to 8 pm during a day, and they mainly acted in the early night.
Fumigant and Repellency Effects of Terpenes against the Two-Spotted Spider Mite, Tetranychus urticae (Acari: Tetranychidae)
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 249~255
These studies were carried out to investigate fumigant, contact toxicity and repellency effects of 34 terpenes against acaricide susceptible the two-spotted spider mite, Tetranychus urticae. In addition, the efficacy was also tested against two acaricide-resistant strains. Two terpenes, isosafrole and safrole showed fumigant toxicity of 98.4%, at 10
/1 (air) concentration. LD
50/ values of these two terpenes were 2.6
/1 and 4.3
l/1, respectively. Most terpenes showed low or no contact toxicity, except isosafrole showing 60.2% mortality against eggs. Hexanoic acid and limonene showed repellency effects of 79.1%, 87.8%, respectively, to the susceptible strain at concentration of 1,000 ppm in the lab conditions. Hexanoic acid (1,000 ppm) showed repellency effected of 77.8% and 83.3% to fenpropathrin and pyridaben resistant strains, respectively. However, limonene showed no repellency to the two resistant strains.
Regulation of Spider Mite Populations by Predacious Mite Complex in an Unsprayed Apple Orchard
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 257~262
Spider mites and their predacious mites were surveyed in an apple orchard where pesticides have not been applied for a long time, to understand the undisrupted predacious mite complex and their role in the controling spider mites. Spider mites occurring in the orchard were different to those in conventional orchards. A few Tetranychus urticae and Panonychus ulmi were observed, while T. kanzawai was abundant during growing season. Four species of phytoseiids, Amblyseius eharai, A. kokufuensis, A. womersleyi and Typhlodromus vulgaris, and one stigmaeid species of Agistemus terminalis were observed from leaf samples in the orchard. Among them, T. vulgaris occurred from early cool season with low T. kanzawai densities through to mid-and late-season. A. womersleyi was observed only during mid-season when T. kanzawai densities were high with hot weather. Amblyseius eharai and A. kokufuensis occured only in early season, but A. terminalis density increased from mid-season and lasted to late-season. The predacious mite complex regulated the density of T. kanzawai approximately under 8 mites per leaf. Tentatively concluding, T. vulgaris is an adaptable predator at lower prey density under cool weather condition, and A. womersleyi is effective predator at higher prey density under hot weather condition. Further, the biological control strategies of spider mites in Korean orchards were discussed based on the predacious mite complex.
Spread of Japanese Gall-forming Thrips, Ponticulothrips diospyrosi, in Korea
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 263~267
The distribution of Japanese gall-forming thrips, Ponticulothrips diospyrosi (Phlaeothripidae), has been spreading in persimmon orchards throughout southern part of Korea since it was first reported in 2000. Questionnaire was made up to survey from when the thrips occurred and how it spreaded out. Results showed that it occurred first in Korea at Jangsung county in Jeonnam province in 1995. It occurs at present at 26 cities and counties encompassing Ulsan metropolitan city and 6 provinces namely Chungbuk, Jeonbuk, Jeonnam, Gyeongbuk, Gyeongnam, and Jeju provinces. The most severely damaged areas are Changwon and Milyang cities. The total area of persimmon orchards which were damaged by the thrips reached up to 151 ha. It infested on astringent persimmon as well as sweet persimmom.
Review on True Bugs Infesting Tree Fruits, Upland Crops, and Weeds in Korea
Korean journal of applied entomology, volume 42, issue 3, 2003, Pages 269~277
Some species of true bugs have become serious problems in rice, upland crops, and tree fruits. It would be meaningful to understand research status by reviewing articles on those true bugs in Korea. Articles on those bugs published in several scientific Korean journals were reviewed, except articles on true bugs on rice plants; CD Part 1 included classification and morphological studies on eggs and larvae of Piesma spp., on external genitalia of Gonopsis affinis, and on spermathecae of some Podopinae and Asopinae species.
Development and growth analysis of Piesma sp., P. maculata, and 2 species of Coreidae were reviewed in part 2.
In part 3 we reviewed with major pest bug species on soybean, sweet persimmon, yuzu, citrus, chrysanthemum, and Cynanchum wilfordii, and insect fauna in mountain areas.
In part 4, damage levels in soybean, sweet persimmon, yuzu, grapes were reviewed.
ID In part 5 we reviewed seasonal occurrence patterns of Halyomorpha halys, Plautia stali, Riptortus clavatus in sweet persimmon orchards, of some species in soybean fields, of Nysius plebejus on chrysanthemum, and of Tropidothorax cruciger on Cynanchum wilfordii.
Chemical control methods in a sweet persimmon orchard, in grapevine yards, in a soybean field, and in a chrythansemum field were introduced in part 6. Some laboratory bioassay on insecticides against R. clavatus were mentioned, too.
Finally in part 7, researches on transmission by Halyomorpha halys and Cyrtopeltis tenuis of micoplasma-like organism which is a pathogen of paulownia withces' -broom to Catharanthus roseus were reviewed.