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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 46, Issue 3 - Dec 2007
Volume 46, Issue 2 - Aug 2007
Volume 46, Issue 1 - Apr 2007
Selecting the target year
Two Mythimna Species New to China (Lepidoptera: Noctuidae)
Li, Cheng-De ; Han, Hui-Lin ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 331~333
DOI : 10.5656/KSAE.2007.46.3.331
Two noctuid pest species of the genus Mythimna legraini (Plante, 1992) and M. laxa Hreblay & Yoshimatsu, 1996 were reported for the first time from China, with illustrations of adults and their available genitalia.
Ecological Analysis and Environmental Evaluation of Aquatic Insects in Agricultural Ecosystem
Kim, Jong-Gill ; Choi, Young-Cheol ; Choi, Ji-Young ; Sim, Ha-Sik ; Park, Hae-Chul ; Kim, Won-Tae ; Park, Byung-Do ; Lee, Jong-Eun ; Kang, Ki-Kyung ; Lee, Duck-Bae ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 335~341
DOI : 10.5656/KSAE.2007.46.3.335
The main habitats of diving beetles in agricultural ecosystems were identified as ponds, irrigation channels, and reservoirs, where the water system is maintained throughout the year. Four species, Cybister japonicus, Cybister brevis, Hyphydrus japonicus and Noterus angustulus, were selected as biological indicators which can be used to evaluate the healthiness of the agricultural ecosystem. The species number of 4 indicator species, the species number of diving beetle species, and the diversity index were used as factors for environmental evaluation. The evaluation was classified into grades
. The non-fertilizer and non-pesticide agricultural practicing area and the sustainable agricultural practicing area were evaluated as grades
, and the general agricultural area to be relatively fine with a grade II. However, the analysis indicated the agricultural areas near a residential area and an industrial complex to be poor with a grade of IV, suggesting that immediate improvement in the agricultural environment is needed.
The Effect of the Anthracnose Resistant Chili Pepper (PepEST gene) on the Non-target Insects, Green Peach Aphids (Myzus persicae Sulzer, Homoptera)
Park, Ji-Eun ; Yi, Hoon-Bok ; Kim, Chang-Gi ; Jeong, Soon-Chun ; Yoon, Won-Kee ; Park, Kee-Woong ; Lee, Bum-Kyu ; Kim, Hwan-Mook ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 343~348
DOI : 10.5656/KSAE.2007.46.3.343
To assess the environmental risks of transgenic chili pepper with PepEST gene on non-target organisms before it exposes to the agro-ecosystem environments, we conducted the three sets of green peach aphids (Myzus persicas S.) life table experiment under laboratory conditions (Temp.
, R.H. 50-70%, Photoperiod L16 : D8) in series during 2005-2006. We measured the net reproductive rate (
, the intrinsic rate of increase (
), the mean generation time (
, life span, and reproduction period between non-transgenic chili peppers and transgenic chili peppers, respectively. The life span of green peach aphids from three sets was 31, 27, 25 days, and the period of life span was similar to the general average length of green peach aphids, 25-29 days. Although the first reproduction of transgenic pepper was similar to the non transgenic pepper (P>0.05), the fecundity and the net reproductive rate (
) by using Jackknife method of transgenic pepper were lower than those of non transgenic pepper (P<0.05). Conclusively, we observed the adverse effect from our results but we should execute further experiments to confirm the results at the fields with the similar way.
Factors Influencing Field Monitoring of the Oriental Fruit Moth, Grapholita molesta, with Sex Pheromone
Kim, Yong-Gyun ; Jung, Sung-Chae ; Bae, Sung-Woo ; Kwon, Bo-Won ; Yoon, Hyang-Mi ; Hong, Yong-Pyo ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 349~356
DOI : 10.5656/KSAE.2007.46.3.349
Three active components (Z8-12:Ac, E8-12:Ac, and Z8-12:OH) are known in sex pheromone of the oriental fruit moth, Grapholita molesta, and have been commercially available to apply for population monitoring and mating disruption. However, there have been variation among commercial products in pheromone composition and amount impregnated in each pheromone releaser. This study was performed to optimize factors influencing on pheromone monitoring of G. molesta by analyzing pheromone composition/amount, effective period of releaser, and trap type/placement in apple trees. High purity of Z8-12:Ac component was effective to attract males, in which 96% or more of cis acetate isomer component appeared to be optimal composition. Pheromone amounts (
) impregnated in each rubber dispenser did not give significant effect on monitoring during 90 days from June to August. "Delta" trap was much more efficient than "cone" trap to collect males. Trap installation was another factor, in which placing traps at canopy level was much efficient than at trunk or ground levels. Pheromone trap monitoring with these optimal factors indicated three to four adult peaks from June to September in addition to high overwintering population from April to May in pesticide-applied orchards in Andong, Korea.
Effect of Temperature on the Development of Copris tripartitus Waterhouse (Coleoptera: Scarabaeidae)
Bang, Hea-Son ; Na, Young-Eun ; Kim, Myung-Hyun ; Roh, Kee-An ; Lee, Jung-Taek ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 357~362
DOI : 10.5656/KSAE.2007.46.3.357
Copris tripartitus Waterhouse is a coprophagus insect which enhances the soil fertility as conveying dung into the soil. We compared preimaginal development, mortality, and size of C. tripartitus at various temperature condition (15, 17.5, 20, 25, 27.5, 30). Total preimaginal periods ranged from 118.0d at
to 49.3d at
. Development threshold temperature (DT) and total effective temperature for the development of egg, larva, pupa and for complete development (egg to emergence) were 12.1, 11.2, 12.1 and
and 82.7, 462.0, 225.7 and 947.2 degree days, respectively. The mortality of egg and larva was the lowest at
. The optimum temperature for hatchability and on the development of C. tripartitus was estimated to the
Evaluation of Farm Lands located in Urban Area and Industrial Complex using Insect Diversity Indices
Choi, Young-Cheol ; Kim, Jong-Gill ; Choi, Ji-Young ; Kim, Won-Tae ; Shim, Ha-Sik ; Park, Beong-Do ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 363~373
DOI : 10.5656/KSAE.2007.46.3.363
To evaluate environment of farm lands using indicator insects and evaluation indices, the insect abundance of which is one of the major criteria for the evaluation of agricultural environment of farm land in urban areas and industrial complex, three sites (Ansan, Daesan, Suncheon) were designated and monitored from 2004 to 2006. The flora of agricultural land was more than urban areas and industrial complex of that in three sites. Soil, water and air pollution of urban areas and industrial complex were more serious than those of agricultural land in three sites. Overall population of insects were high from June to August in the surveyed three sites. Collected insects in agricultural land were 12 order, 106 family and 166 species, those in urban areas were 11 order, 102 family and 148 species, and in industrial complex were 11 order, 100 family and 152 species. Species and population belonging to Coleoptera was dominant in the surveyed sites. The insect diversity indices of farm land were 2.36 in agricultural land, 1.92 urban areas and industrial complex. And agricultural environment of agricultural land was good, urban areas was common and industrial complex was poor. Based on the major criteria of evaluation items, the criteria were selected as diversity index over 2.1, insect indicator Pheropsophus javanus in agricultural land, diversity index 1.5-2.0, insect indicator Nephotettix cincticeps in urban areas, diversity index below 1.5, insect indicator Pagria signata in industrial complex.
Comparison of Insect Diversity in Relation to the Sampling Method, Time And Window
Park, Geun-Ho ; Cho, Soo-Won ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 375~383
DOI : 10.5656/KSAE.2007.46.3.375
To find out the affection of the sampling techniques to the result of a faunistic study, we surveyed the insect fauna of the Chungbuk National University (four different sites) for a year, from spring to fall. For each site, four different collecting methods: light trap, net sweeping, pitfall trap, and window trap, were applied and the collecting was done every other week for a total of 16 times. A total of 14 orders and 672 species were collected. 501 species were collected by the light trap, which covers about 75% of the total number of species, turn out to be the most effective, while other methods could only cover 18% or less. On average, only about 30% of the species collected at a given time of collecting were re-collected at the next collecting, which means about 70% of the species collected from the first collecting remains not collected in the next collecting if you collect insects every other week. The result suggests that, in addition to applying diverse collecting methods, frequent sampling, or narrow sample window, is another very important factor for a good representation of species diversity in an insect faunistic study.
Development of Economical Artificial Diets for Greater Wax Moth, Galleria mellonella (L.)
Lee, Seung-Wook ; Lee, Dong-Woon ; Choo, Ho-Yul ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 385~392
DOI : 10.5656/KSAE.2007.46.3.385
This research was carried out to develop economical artificial diets of the greater wax moth, Galleria mellonella (L.). Diets were mixed with malt or sugar instead of whole honey for cheaper ones. fecundity, developmental period, pupation rate, emergence rate and adult longevity of G. mellonella depending on diet were examined. The head width and length of larvae were not significantly different among diets tested. However, the weight of larva was the heaviest, 255.5 mg, at 1/2 honey + 1/2 malt diet and lightest, 144.3 mg, at sugar diet. The weight of pupa was also the heaviest at 1/2 honey + 1/2 malt representing 196.7 mg. Larval period was the shortest at honey diet as 30.9 days but the longest at sugar diet as 36.5 days. Pupation and emergence rates were over 79.3% at all diets. The longevity of mated females was ranged from 6.3 to 8.0 days and those of mated males ranged from 7.9 to 11.2 days. The highest number of eggs, 1269, was obtained at sugar diet. Artificial diets replaced by rice bran, malt, and sucrose reduced costs compared with wheat bran plus honey diet. The cost of rice bran was only 10% of wheat bran. Honey was much more expensive than malt and sugar, that is 6 and 13 times, respectively.
Developmental Characteristics of Soybean Podworm, Matsumuraeses phaseoli (Lepidoptera: Tortricidae) and Legume Pod Borer, Maruca vitrata (Lepidoptera: Pyralidae) on Semi-synthetic Artificial Diets
Jung, Jin-Kyo ; Seo, Bo-Yoon ; Park, Jong-Ho ; Moon, Jung-Kyung ; Choi, Bong-Su ; Lee, Young-Ho ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 393~399
DOI : 10.5656/KSAE.2007.46.3.393
Two lepidopteran species, Matsumuraeses phaseoli (Matsumura) and Maruca vitrata (syn. M. testulalis) (Fabricius) were reared on artificial diets, and analyzed in their developmental characteristics. Photoperiod was supplied with 16L/8D for M. phaseoli and with 13L/11D for M. vitrata, respectively. Both species passed five larval instars with discrete sizes of head capsule width. In a constant environment (
and 65%RH), the developmental period of M. phaseoli egg, larva and pupa was 3.9, ca. 16.0 and 8.9 days, respectively, and over 80% of M. phaseoli larvae could develop into pupae, most of which emerged into adults. Newly laid eggs could be stored at
for 15 days with over 50% hatchability. Similar developmental traits were shown in M. vitrata. However, a low temperature preservation was not applicable to M. vitrata eggs.
Differentiation in Feeding Behaviour of Biotypes B and Q of Bemisia tabaci (Homoptera: Aleyrodidae) against Three Insecticides
Seo, Mi-Ja ; Yang, Jeong-Oh ; Yoon, Chang-Mann ; Youn, Young-Nam ; Kim, Gil-Hah ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 401~408
DOI : 10.5656/KSAE.2007.46.3.401
The feeding behaviors of 2 biotypes (type B and Q) of tobacco whitefly, Bemisia tobaci, were monitored using EPG technique on tomato and pepper plants treated 3 insecticides for controlling whiteflies, for examples, acetamiprid, spinosad and thiamethoxam. After treatment of three insecticides with recommended concentrations to tomato and pepper plants, EPG waveforms were recorded during 6 hours. The characteristic patterns of feeding behaviors investigated were as follows; time consumed by withdrawal of proboscis, total non-penetration time, total stylet pathway pattern time and total phloem feeding time. There was somewhat difference among 3 insecticides tested. As a result of investigation of total duration showed the stylet pathway activity due to the reaction against all tested insecticides, the Q biotype showed fewer time than those from the B biotype. The B biotype showed more frequent stylet pathway activity patterns during whole recording time and a shorter phloem ingestion time than those from the Q biotype. In result of prior up (non-penetration) time representing the reaction against the insecticide treated, the time of B biotype was more faster than that of the Q biotype, so it was considered that the B biotype was more sensitive to the tested insecticides. Therefore, our results revealed a clear difference in feeding behaviour between the B and Q biotypes of B. tabaci. Also, it was investigated that B biotype was susceptible to the 3 insecticides.
Economic Injury levels of Liriomyza trifolii Burgess (Diptera: Agromyzidae) infesting Eggplant in Greenhouse
Lim, Ju-Rak ; Moon, Hyung-Cheol ; Choi, Seon-U ; Kim, Ju-Hee ; Lee, Ki-Kwon ; Ko, Bok-Rai ; Choi, Jung-Sick ; Jeon, Yong-Kyun ; Hwang, Chang-Yeon ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 409~414
DOI : 10.5656/KSAE.2007.46.3.409
Economic injury levels and economic thresholds were estimated for the american serpentine leafminer (Liriomyza trifolii) on greenhouse eggplant. Liriomyza trifolii density was increased until the late June and decreased after the July in innoculation on may 17. Growth of an aerial plants and fruits were not different in treatment respectively. But total number of fruits and yields were decreased on higher inoculation density. Whereas the rate of yield loss was increased. The rates of damaged leaf by L. trifolii were increased on higher inoculation density and the peak was 65%. The number of commodity fruits and the rates of commodity fruit were become lower than non-treatment (72.2%). The rates of damaged leaf area were 5.3, 11.7, 19.7, 25.7% on inoculation densities and the rates of yield loss were 0.6, 4.8, 9.8, 14.7%, respectively. There existed close correlation between rate of yield loss and inoculation density (Y = 0.76779X + 0.298354,
). Considerated of the results, the economic injury levels of L. trifolii on eggplant greenhouse was 6.1 adults per 4 plant and the economic thresholds was 4.9 adults per 4 plant.
Evaluation of Low Toxic and Residual Toxicity of Pesticides Registrated on Sweet Pepper Greenhouse to Orius strigicollis
Choi, Byeong-Ryeol ; Park, Hyung-Man ; Kim, Jeong-Hwan ; Lee, Si-Woo ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 415~423
DOI : 10.5656/KSAE.2007.46.3.415
For the development of integrated pest management system by harmonizing biological and chemical control, some experiments were carried out to select low toxic pesticides and to evaluate residual toxicity to natural enemies. Leaf dipping method and body dipping method were set up for evaluating toxicity to minute pirate bug, Orius strigicollis adult. We had tested 52 kinds of pesticides (33 insecticides, 19 fungicides) commonly used to control greenhouse insects, mites, and disease pests to natural enemies at the recommended concentration. Fourteen insecticides by body dipping method, 12 insecticides by leaf dipping method and 19 fungicides were selected as low toxic pesticides to O. strigicollis adult. After insecticide spraying at recommending dose on the sweet pepper plant, we examined residual effect of insecticides by introducing natural enemies on different days. Safety interval for introduction of O. strigicollis adult was established according to residual toxicity of pesticides. Safety insecticides at one day after treatment were pyraclofos, methomyl, thiodicarb, esfenvalerate bifenthrin, alpha-cypermethrin, etofenprox, fenvalerate, imidacloprid, acetamiprid, abamectin, emamectin benzoate, spinosad, indoxacarb. However, residual toxicity of nee-nicotinoids last up to 21 days to O. strigicollis adults.
Occurrence of Liriomyza trifolii and its Biological Control using Neochrysocharis formosa in Eggplant Greenhouse
Moon, Hyung-Cheol ; Lim, Ju-Rck ; Ryu, Jeong ; Shin, Yong-Kyu ; Hwang, Chang-Yeon ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 425~430
DOI : 10.5656/KSAE.2007.46.3.425
Occurrence of Liriomyza trifolii and its biological control efficacy using Neochrysocharis formosa were evaluated in two eggplant cropping systems of spring and autumn cultivation. L. trifolii adults began to be attracted on a yellow sticky traps from late April and they increased from early June. A high density of L. trifolii adults was maintained from middle June to middle July. The releases of two N. formosa per plant with 3 times as weekly intervals from May 25, 2004 for spring culture resulted control effect of 90.1% in parasitism to L. trifolii in late July. The releases of two N. formosa per plant with 4 times as weekly intervals from August 31, 2004 for autumn culture resulted control effect of 81.3% in population of L. trifolii with 64.4-69.9% in parasitism.
Control Thresholds for the Management of Beet Army Worm, Spodoptera exigua (Lepidoptera : Noctuidae) on Welsh Onion (Allium fistulosum L.)
Kim, Seon-Gon ; Kim, Do-Ik ; Kang, Beom-Ryong ; Choi, Kyeong-Ju ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 431~435
DOI : 10.5656/KSAE.2007.46.3.431
Control thresholds for the management of beet army worm, Spodoptera exigua (Lepidoptera : Noctuidae) were evaluated on welsh onion of two different planting time. Two inoculation times were tested for each planting and the number of inoculated larva was 5, 10, 20, 40 per twenty plants. The injured rate of leaves was 33.5% to 10.9% at 7th September at 40 to 5 larva inoculation plot on the five days planting. That of leaves was 20.5% at 40 larva on the twenty days planting. The yields of welsh onion on non-inoculation plot were 4,395 kg per 10a. The rate of reduced yields was 49.2%(1,774.2 kg) and 36.5%(2,220.5 kg) at 40 larva inoculation on the 5 and 20 days planting, respectively. The linear relationships between population density and yield reduction were as following; it was Y=-43.474X + 3419.6 (
) for 5 days and Y=-32.977X + 3518.9 (
) for 20 days. Based on these results the control threshold level was estimated to be 1.8 larva for 5 days and 4.6 larva for 20 days per 20 plant. The more damaged leaves by S. exigua larva, the more yield reduction on welsh onion.
Over-wintering of the Apple Snail, Pomacea canaliculata (Gastropoda: Ampullariidae) and Its Over-wintering Habitat in the Yeongnam District
Kim, Hyun-Ju ; Bae, Soon-Do ; Lee, Geon-Hwi ; Park, Sung-Tae ; Park, Chung-Gyoo ; Park, Hyeong-Man ;
Korean journal of applied entomology, volume 46, issue 3, 2007, Pages 437~444
DOI : 10.5656/KSAE.2007.46.3.437
The effect of environmental factors on the over-wintering success of the apple snail, Pomacea canaliculata, which is considered as unable to hibernate during winter climate in Korea. This study was examined to determine the location of over-wintering habitats in the agricultural water system related with weed control using the apple snail in rice paddy field in the Yeongnam district from 2003 to 2006. Over-wintering success of the apple snail was observed at Hadong, Hapchen, Sanchung, Kimhae, Milyang, Changwon, Ulsan, Busan, Gyengju, Pohang, Chilgok, Seongju, Gumi, Sangju and Youngju in Yeongnam area. And the over-wintering locations of apple snail going north year by year. Accordingly, the successful over-wintering sites observed were deep wells, water running canals and brooks not dried conditions. A special feature of this sites was that the water of this sites was not frozen during winter season.